Commit Graph

511 Commits

Author SHA1 Message Date
localai-org-maint-bot
799cec14f1 fix(oci): materialize chained links in dependency order
Retry deferred link copies until their targets exist so soname chains work on filesystems without symlink support. Document that copied links can increase backend storage usage on CIFS and SMB mounts.

Assisted-by: Codex:gpt-5
2026-07-29 14:07:44 +00:00
localai-org-maint-bot
38ae3a24f9 fix(oci): build extraction image from downloaded layers
Avoid appending downloaded layers to the original remote-backed image, which duplicates the layer stack and reopens the source during extraction. Building from an empty image preserves the flattened whiteout semantics while keeping extraction local.

Assisted-by: Codex:gpt-5
2026-07-29 14:07:44 +00:00
Ettore Di Giacinto
6ac7d00309 fix(oci): silence gosec on the validated link-copy file ops
Use hdr.FileInfo().Mode() instead of converting the int64 tar mode to
os.FileMode (removes two G115 overflow findings), and annotate the tar
extraction file operations with justified #nosec comments: every path is
validated by safeJoin against the extraction root before use (G304/G305).

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude:opus-4.8 [Claude Code]
2026-07-29 14:07:44 +00:00
Ettore Di Giacinto
a496d989ae fix(oci): reject path-traversal tar entries in the link-copy fallback
safeJoin sanitized "../.." entries by clamping them under root instead of
rejecting them, so a malicious entry was silently redirected rather than
refused. Join without the leading-slash trick and reject any entry whose
cleaned path resolves outside root; absolute link targets are still mapped
under root (image-root relative) rather than escaping.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude:opus-4.8 [Claude Code]
2026-07-29 14:07:44 +00:00
Ettore Di Giacinto
2923618a8d fix(oci): check deferred Close in copyFilePreservingMode (errcheck)
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude:opus-4.8 [Claude Code]
2026-07-29 14:07:44 +00:00
Ettore Di Giacinto
087fe5483e fix(backends): fall back to copying links when the filesystem rejects symlinks (#10890)
Backend installation extracts the OCI image tar via containerd's
archive.Apply, which calls os.Symlink directly. On filesystems that do
not support symlinks (notably CIFS/SMB mounts, commonly used to back the
/backends volume) the syscall fails with "operation not supported" and
the whole install aborts, leaving an empty backend directory. The CUDA
llama.cpp image trips this on the libcublas.so -> libcublas.so.12.x
symlink.

When archive.Apply fails with a link-unsupported error, reset the
staging directory and re-extract with a pure-Go walker that still
attempts real symlinks/hardlinks first and degrades to copying the link
target's contents in place when the filesystem rejects them.
mutate.Extract already flattened the layers, so the tar carries no
whiteouts to interpret. Link copies are deferred to a second pass so
forward references resolve.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude:opus-4.8 [Claude Code]
2026-07-29 14:07:44 +00:00
mudler's LocalAI [bot]
90d93c71cd fix(downloader): hash the partial file before issuing the resume request (#11099)
The stall watchdog arms as soon as the response body exists, but the
downloader then re-hashed the entire existing .partial before reading a
single byte from the network. On slow models storage (a CIFS share
reading at ~117MB/s) hashing a multi-GB partial outlasts the 60s stall
window, so the watchdog aborted every healthy resume with 'download
stalled: no data received for 1m0s'. The partial never grew, so every
retry re-paid the same hash and failed identically, wedging the install
permanently (any partial over ~7GB on such storage).

Open the partial and hash it before the HTTP request instead: the
watchdog now only measures actual network idle time, and the origin no
longer sits on an idle connection while the hash runs.

Assisted-by: Claude:claude-fable-5 [Claude Code]

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-07-24 12:57:30 +02:00
mudler's LocalAI [bot]
ec49548c8e fix(modelartifacts): resume interrupted materialization per-file, not from scratch (#11071)
materializeLocked built a download task for every file in the resolved
snapshot unconditionally. A completed file is promoted from
.downloads/<hash> into snapshot/<path> and its blob deleted, so on any
re-entry (a controller pod roll, a resubmit, a crash) the new pass built a
task whose .downloads blob no longer existed, re-downloaded the whole file
from Hugging Face, and its AfterDownload even removed the already-complete
snapshot copy first. The only resume that worked was the downloader's
per-file .partial resume for a file caught mid-transfer; completed files
were never skipped.

Production consequence: installing longcat-video-avatar-1.5 (~35 GB after
allow_patterns) on a cluster whose controller rolls hourly (Flux image
automation) never converged across ~14 hours. Each roll restarted from the
first shard; the completed bytes on disk were repeatedly deleted and
re-fetched, and the artifact never promoted. curl of the same files from
inside the pod ran fine, proving the loss was the materializer re-fetching,
not the network.

Before building a task, check whether the file is already materialized and
verified in this staging tree's snapshot/ and, if so, keep it and count it
complete instead of downloading. "Materialized" means a regular file of the
expected size that passes the same verifyDownloadedFile check the download
path uses, so the kept manifest entry is byte-for-byte identical to a fresh
one and integrity is re-checked. The manifest requires a SHA-256 for every
file and non-LFS files carry none to borrow, so a hash is unavoidable for
the manifest anyway; a full re-hash of local disk is still orders of
magnitude cheaper than re-downloading, and the downloader re-verifies any
file it does fetch. Manifest entries are now written at their snapshot index
rather than appended in completion order, so a mix of skipped and downloaded
files keeps the resolved order that committedResult and staging read. The
unconditional root.Remove(destination) now runs only on the fresh-download
path; a kept file survives. Skips are logged at INFO with count and bytes so
an operator can see resume working.

This is the resume-side counterpart to the sibling defects on this path:
read/write error conflation and transient retry (#10985), hash-verify
progress accounting and silent success on an expired deadline (#11026), and
the response-header hang (#11053). The download machinery resumed a single
in-flight file; the materializer above it still threw away every completed
file on restart. It also makes orphan-partial adoption worth its cost:
an adopted tree's completed files were re-downloaded anyway until now.


Assisted-by: Claude Code:claude-opus-4-8[1m] [Read] [Edit] [Bash]

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-07-23 10:48:01 +02:00
mudler's LocalAI [bot]
6584db992f fix(nodes): never schedule a model onto a node that cannot store it (#11054)
* fix(nodes): never schedule a model onto a node that cannot store it

A worker whose models filesystem was 100% full kept advertising
`status: healthy`, stayed a scheduling candidate, was picked to host a
70 GB video model, accepted the staging request, transferred ~17 GB and
only then failed:

  staging .../whisper-large-v3/model.fp32-00001-of-00002.safetensors:
    upload to node b7bacbf4-... failed with status 500:
    writing file: /models/longcat-video-avatar-1.5/...: no space left on device

The node was at 937G/937G/0-avail. Total elapsed before the truth
surfaced: 16 minutes, for a decision that could never have succeeded.

The worker health signal only ever proved liveness. `/readyz`
(WorkerReadiness/NATSReadiness) checks the NATS link; `status: healthy`
in the registry is driven by heartbeat recency. Node capacity carried
VRAM and RAM but no disk figure at all, and the router compared model
size against VRAM only — nothing anywhere looked at free space on the
filesystem that staging actually writes to.

Report it, then use it:

- Workers now measure the filesystem backing their MODELS directory
  (not `/` -- staged weights land in the models path, and that mount is
  very often separate) and report `total_disk`/`available_disk` on
  registration and on every heartbeat. Free disk moves faster than VRAM
  under staging traffic, so the per-heartbeat refresh matters.
- The SmartRouter drops nodes that cannot store the model before it
  picks one. The requirement comes from `modelPayloadBytes` -- the same
  local paths `stageModelFiles` uploads, already computed for the
  size-derived load budget -- plus a 5% / 1 GiB margin, rather than a
  fixed percentage of the node's disk. A percentage threshold would take
  a small-but-usable node out of rotation for models it could hold, and
  on a homogeneous cluster would strand every node at once.
- When no node fits, scheduling fails immediately with an error naming
  the requirement and each node's free space, instead of picking one and
  discovering it mid-transfer.

Two deliberate non-changes. Low disk does not mark a node `unhealthy`:
the check is per model, so a node too small for one model stays a valid
target for smaller ones. And `total_disk == 0` means "does not report
disk" (pre-upgrade worker, or a failed stat), not "full" -- such nodes
pass through untouched so a rolling upgrade never empties the candidate
pool. A genuinely full node is distinguishable: non-zero total, zero
available. Registry read failures are logged and scheduling continues
unfiltered; a database hiccup must not wedge a cluster.

Free space is surfaced on the node detail page next to VRAM, since the
incident's signature was a node that looked entirely healthy.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude Code:claude-opus-4-8[1m] [Read] [Edit] [Bash]

* feat(nodes): make the disk-headroom check operator-controllable

The admission check added in the previous commit had no off switch. A
scheduler-side veto with no escape hatch is a liability: our size
estimate can be wrong (deduplicating or compressing filesystems, a
backend that fetches its own weights rather than loading the staged
copy), and an operator who hits that has no way out but a downgrade.

Add one knob with two surfaces that share a single source of truth:

- `--distributed-disk-headroom-check` / `LOCALAI_DISTRIBUTED_DISK_HEADROOM_CHECK`
  (default true), following the `--distributed-prefix-cache` pattern for
  a default-on distributed feature.
- `distributed_disk_headroom_check` in the runtime-settings registry, so
  it can be flipped without a restart from `POST /api/settings` and from
  Settings -> Distributed in the WebUI.

Both write `DistributedConfig.DiskHeadroomDisabled`, and the SmartRouter
reads that member LIVE on every scheduling decision through a closure
over the application config rather than a value snapshotted at
construction. Env/CLI sets the boot value, the runtime setting overrides
it live, last write wins, and there is exactly one member to read.
Snapshotting would have made the runtime toggle a no-op until restart.

Disabled means WARN, not SKIP. Selection goes back to ignoring free disk
-- byte for byte the pre-check behaviour -- but the check still runs, and
when it would have rejected every node it says so, naming the knob that
suppressed it. Going quiet when switched off would reproduce the exact
condition that made the original incident expensive: a cluster doing
something that could not work and saying nothing. Disabling is also
logged once at startup. Warning only on the total-rejection case keeps
it actionable rather than chatty on a heterogeneous cluster.

Also fixes a false positive in the check itself: shared-models mode
(LOCALAI_DISTRIBUTED_SHARED_MODELS) stages nothing at all -- every node
already mounts this models directory at this path -- so demanding the
full checkpoint size of free space per node would have rejected a
cluster that needs no new bytes. The check is skipped there entirely.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude Code:claude-opus-4-8[1m] [Read] [Edit] [Bash]

---------

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-07-23 00:03:21 +02:00
mudler's LocalAI [bot]
16033d562a fix(downloader): bound the wait for response headers so a wedged origin cannot hang an install forever (#11053)
A gallery model install hung for 94 minutes with zero bytes transferred, no
error, no retry and no abort, leaving a partial tree frozen at 18G. The last
log line was the download starting, then silence:

    14:06:19 INFO Downloading url=".../LongCat-Video-Avatar-1.5/resolve/<rev>/base_model/diffusion_pytorch_model-000..."

The retry machinery from #10985 was working (two retries fired at 14:05:01 and
14:06:14); the third attempt simply never returned. The install never
completed, the model config was never written, and nothing surfaced the
failure.

The stall watchdog added earlier wraps the response *body*, so it only starts
guarding once downloadClient.Do() has returned. The transport had no
ResponseHeaderTimeout, so a peer that completes the dial and TLS handshake,
reads the request, and then never sends a status line parks Do() for the
process lifetime. IdleConnTimeout governs pooled idle connections, not an
in-flight request. Both the body request and the HEAD that probes for Range
support were unguarded.

Bound the header wait at the transport, not the client: a client-level Timeout
would also bound the body and truncate multi-tens-of-GB downloads. The knob is
opt-in (WithResponseHeaderTimeout) rather than a default in HardenedTransport,
because a streaming endpoint may legitimately withhold headers until it has
something to say, and capping that would break the streaming clients that share
this constructor.

Also fix a classification trap this exposed: net/http reports a
ResponseHeaderTimeout as an error satisfying errors.Is(err,
context.DeadlineExceeded), which IsRetryable read as "the caller gave up" and
refused to retry. An explicit transient marking now outranks the cancellation
sentinels; a caller who genuinely gave up is still caught by the ctx.Err()
check. The resume probe's error is likewise marked transient, so a momentarily
wedged origin no longer turns a resumable download into a hard install failure.

Third defect found in this download path, after #10985 (read vs write errors
conflated) and #11026 (hash verification emitted no progress and an expired
deadline returned success).


Assisted-by: Claude Code:claude-opus-4-8[1m] [Read] [Edit] [Bash]

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-07-22 18:28:51 +02:00
mudler's LocalAI [bot]
54d5c18bfb fix(model): only announce a load at INFO when a load actually happens (#11017)
backendLoader logged "BackendLoader starting" at INFO as its very first
statement, unconditionally. That reads as "a model is being loaded", but
backendLoader is not only a load path: in distributed mode Load()
deliberately bypasses the local cache and calls backendLoader on every
inference request so SmartRouter can re-pick a replica per request. The
model is already resident, no process is spawned, and nothing is loaded,
yet the banner fires at request rate.

On a live cluster this produced ~5 "BackendLoader starting" lines per
second for a single embedding model, sustained, starting 22 seconds
after the load had already completed. The model was state=loaded with
in_flight=0 and exactly one backend process on the worker. It looked
exactly like a retry storm and cost real debugging time during an
unrelated production investigation. The adjacent "effective runtime
tuning" banner, documented as "logged once per load", had the same
problem for the same reason.

Emit both banners at INFO only when the model is not already resident,
and keep the per-call trace at DEBUG for anyone following the routing
path. isResident is a plain store lookup with no health probe and no
eviction, so it is safe on the per-request hot path (unlike
checkIsLoaded, which probes and can evict).

Same class of defect as #10985: a log line that sends the reader after
the wrong thing.


Assisted-by: Claude Code:claude-opus-4-8[1m] [Read] [Edit] [Bash]

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-07-21 15:33:29 +02:00
mudler's LocalAI [bot]
f01038f479 fix(modelartifacts): stage each writer's artifact in its own partial tree (#10995)
Every writer used to stage into the same `.artifacts/.partial/<cacheKey>`.
That was safe only because the artifact lock held: two writers that both
believed they had it opened the same blob with O_APPEND and interleaved
their bytes into one file, while the resume probe read the other writer's
in-flight size. SHA verification caught the damage only after both had
burned the entire download.

#10986 restored the lock's precondition on CIFS but left the dependency in
place. Suffix the staging tree with a writer identity drawn once per
process run, so concurrent writers cannot corrupt each other whatever the
lock does. The lock stops being a correctness dependency and becomes a
pure efficiency optimisation: a lock failure now costs a duplicated
download, not a corrupted one.

Commit stays an atomic rename. The loser of a commit race reconciles onto
the winner's tree instead of surfacing a bare ENOTEMPTY for work that
actually succeeded, since the artifact is content-addressed and both trees
hold the same verified bytes.

Writer-unique staging means a crashed writer's tree is no longer
overwritten by its successor, so two things are added to keep it from
becoming a disk leak and a resume regression:

- A sweep reclaims trees whose contents have been untouched for 24h,
  matching the window the startup reaper already uses for stray *.partial
  files. It reads the newest mtime anywhere inside the tree, because
  writing a blob never touches an ancestor, and refuses any name this
  package did not write. A live download writes continuously, and the
  downloader's stall watchdog aborts a silent one long before it could
  look abandoned.

- Adoption lets a restarted process claim a dead predecessor's tree for
  the same artifact and resume from its bytes, which a tens-of-gigabytes
  repo depends on. The claim is an atomic rename, so racing adopters
  cannot both win. It runs only under the artifact lock - which is
  released exactly when the owning process dies - and only on a tree idle
  for 5 minutes as a second line of defence for when the lock does not
  exclude.


Assisted-by: Claude:claude-opus-4-8 [Claude Code]

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-07-20 23:07:43 +02:00
mudler's LocalAI [bot]
2f33ad6669 fix(modelartifacts): treat CIFS EACCES as lock contention, not failure (#10986)
flock(2) on CIFS/SMB returns EACCES when another client holds the lock:
the kernel maps STATUS_LOCK_NOT_GRANTED and STATUS_FILE_LOCK_CONFLICT to
-EACCES and never produces EWOULDBLOCK on that path. gofrs/flock only
recognises EWOULDBLOCK as contention, so TryLockContext returned a bare
"permission denied" and Ensure aborted. Both replicas then fell back to
legacy loading, which makes the worker download the whole repo in-band
inside LoadModel and blow the remote-load deadline.

Replace TryLockContext with an explicit wait loop over a new Locker
interface, classifying EWOULDBLOCK/EAGAIN/EACCES/EBUSY as contention.
EACCES is ambiguous at the syscall boundary but not here: the lock file
is already open O_CREATE|O_RDWR, so a real permission problem would have
failed the open with an *fs.PathError, and flock(2) documents no EACCES
on Linux at all. The wait is bounded (DefaultLockWait, overridable via
WithLockWait), so even a misclassification degrades to a delay. On
timeout the committed result is re-checked before reporting the new
ErrLockContended, so a peer that finished the work still wins.

Locker also exists so the contention path is testable without a network
filesystem: nothing in CI can make flock(2) return EACCES on demand.

Raise the fallback to error for a managedArtifactBackends backend, via a
shared config.LogArtifactFallback used by both call sites. For those
backends the legacy path is not graceful degradation, and the operator
otherwise sees only a timeout with no causal link. The fallback stays
non-fatal.

Drop the os.Chmod(layout.Lock, 0o600) after acquisition: flock.New
already creates the file 0600, and the chmod was gratuitous risk on a
nounix mount that ignores modes.

Fixes #10981


Assisted-by: Claude Code:claude-opus-4-8[1m] [Read] [Edit] [Bash]

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-07-20 22:12:39 +02:00
mudler's LocalAI [bot]
1cd7d63c7b fix(distributed): reject wrong-model requests on the remaining modalities (#10990)
#10970 gave the four PredictOptions RPCs a model-identity check so a
backend reached through a stale distributed route rejects the request
instead of answering from whatever model it holds (#10952). Every other
modality shares that exposure: the route is cached by host:port, a worker
can recycle a stopped backend's port for another model's backend, and a
liveness-only probe cannot tell a stale row from a valid one.

Extends the same mechanism to the 21 remaining request messages that reach
a backend through the router, using the pattern #10970 established rather
than a parallel one:

- proto: ModelIdentity on each modality request message.
- controller: populated from ModelConfig.Model at the call site that also
  builds ModelOptions, so load-time and request-time values are equal by
  construction.
- backends: one generic guard in pkg/grpc/server.go (27 Go backends), the
  method set in backend/python/common (36 Python backends), llama-cpp
  (AudioTranscription/Stream, Rerank, Score) and privacy-filter
  (TokenClassify).
- reconcile already drops the stale row on IsModelMismatch; no change.

TTSRequest and SoundGenerationRequest get a SEPARATE ModelIdentity field
rather than reusing their existing `model`: FileStagingClient rewrites
`model` to a worker-local path, so comparing it would reject valid
requests in exactly the configuration this guards.

AudioEncode/AudioDecode are deliberately left unguarded: the opus codec
backend is loaded from a literal rather than a ModelConfig, so no value
carries the equality guarantee the comparison depends on. The four
bidirectional stream RPCs are out of scope; they bypass reconcile.

Empty means skip on both sides, so an old controller, an old backend, and
the bare request structs in tests/e2e-backends all keep working.


Assisted-by: Claude Code:claude-opus-4-8 [Read] [Edit] [Bash]

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-07-20 21:58:19 +02:00
mudler's LocalAI [bot]
0d9d07d3a5 fix(downloader): distinguish read from write failures and retry transient ones (#10985)
Two independent defects in the download path, both surfaced by the same
incident (#10982).

A failed `io.Copy` was always reported as "failed to write file", because
`io.Copy` folds read and write errors into a single return value. A
peer-cancelled HTTP/2 stream therefore presented as a filesystem failure and
sent an investigation after mount permissions while the disk was healthy. The
source is now wrapped in a recorder so the error names the side that actually
broke, and a write failure names the `.partial` it was writing rather than the
final blob path.

The plan runner returned on the first task error with no retry, so one
transient stream cancel discarded every file already downloaded in a
multi-file materialization. The `.partial` resume machinery already existed
but was unreachable because nothing made a second attempt. Transient failures
(dropped transport, mid-stream read failure, stall, 5xx, 429) are now retried
with bounded exponential backoff and resume from the partial; permanent ones
(4xx, checksum mismatch, local write failure, caller cancellation) fail
immediately.


Assisted-by: Claude:claude-opus-4-8 [Claude Code]

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-07-20 19:56:09 +02:00
mudler's LocalAI [bot]
83a0f16a21 feat(gallery): let one gallery entry offer several builds of the same model (#10943)
* feat(system): expose raw detected capability for model meta resolution

Model meta gallery entries express hardware fallback through candidate
ordering rather than a capability map, so they need the undecorated
detected capability string without Capability's default/cpu fallback
chain.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* refactor(system): drop duplicate capability accessor, cover DetectedCapability

ReportedCapability was added with a body identical to the existing
DetectedCapability. Keep one accessor and move the specs onto it, since
DetectedCapability had no direct coverage of its no-fallback behavior.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(vram): parse IEC binary size suffixes (KiB..PiB)

ParseSizeString accepted only SI suffixes, so a "20GiB" floor was rejected
outright. Model and VRAM sizes are conventionally quoted in IEC units, and
silently reading GiB as GB would understate a floor by about 7%.

Purely additive: these inputs previously returned an unknown-suffix error.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(gallery): add Candidate type for meta model entries

Candidate is one option in a meta entry's ordered variant list. It names a
concrete gallery entry and declares when that entry suits the host.

EffectiveMinVRAM resolves the VRAM floor, letting an authored min_vram win
over a nightly-inferred one. An unparseable floor errors instead of being
treated as absent: swallowing a typo would turn a constrained candidate into
an unconstrained one and select a too-large variant rather than fail loudly.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(gallery): add hardware-aware model variant resolver

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(gallery): allow gallery model entries to declare variant candidates

A gallery entry with a non-empty candidates list is a meta entry: it names
an ordered list of concrete entries and resolves to the first one the host
can satisfy, instead of describing model files directly.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(gallery): resolve meta model entries to hardware-appropriate variants at install

Meta gallery entries carry an ordered candidate list; at install time the
first candidate the host satisfies is resolved and its payload installed
under the meta's name, so the model keeps a stable name regardless of which
variant backs it. The resolution is recorded in the installed gallery
config so a reinstall honors a prior pin and operators can see the backing
variant.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(gallery): key meta pin recall on the installed name and detach resolved entries

Six review findings on the meta-entry install path.

Pin recall was keyed on the gallery entry name while applyModel writes the
record under the install name (req.Name when supplied), so a meta installed
under a custom name with a pin lost that pin on reinstall and was silently
re-resolved onto a different variant, possibly swapping its backend. Compute
the install name with applyModel's own precedence before the recall.

ResolveMetaModel returned a shallow struct copy, so the resolved entry's
Overrides aliased the gallery entry's map and the install path's in-place
mergo merge wrote the caller's request into the shared catalog. Detach
Overrides, ConfigFile, AdditionalFiles, URLs and Tags. Not exploitable today
only because this path re-unmarshals the gallery per call, which is a
property nobody should have to rely on.

Also: overlay the meta's name onto the persisted config for meta installs so
the gallery file no longer records the variant's name; move the pinned-VRAM
warning below the variant validation so a pin naming a nonexistent entry does
not warn about VRAM before failing for an unrelated reason; and stop seeding
config.URLs in the config_file branch, which duplicated every declared URL.

Add seven network-free specs driving InstallModelFromGallery with a meta
entry: variant payload wins over the meta's legacy url fallback, the
resolution record round-trips to disk, a pin is recorded and honored on
reinstall including under a custom install name, and the resolved entry does
not alias the gallery's maps.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(gallery): deep-copy meta overrides and make two specs functional

ResolveMetaModel detached the resolved entry's Overrides and ConfigFile with
maps.Clone, which only copies the top level. Gallery overrides are nested in
practice (parameters.model is near-universal) and the install path merges the
caller's request with mergo.WithOverride, which recurses into nested maps and
overwrites them in place, so the gallery entry's own inner maps were still
reachable and still got rewritten by the last caller to install.

Copy both maps all the way down instead, recursing through the container shapes
a YAML decoder produces. ConfigFile is not mutated on the install path today,
but it carries the same kind of nested payload and leaving it shallowly cloned
would invite the bug back.

Also fix two specs that passed whether or not their target fix was present:

- "does not write the caller's overrides back into the gallery entry" re-read
  the catalog from disk, which re-unmarshals fresh structs and so cannot
  observe in-memory aliasing. It now asserts against the in-memory gallery
  entry and drives the real mergo merge.
- "round-trips the resolution record to disk under the meta's name" asserted a
  name that is already correct in the config_file branch. It now drives the url
  branch via a file:// fixture, where the meta-name overlay actually applies.

Both were verified red by reverting their fix.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* test(gallery): lint meta model entry invariants in index.yaml

Adds Ginkgo specs that parse the shipped gallery/index.yaml and enforce
the invariants that keep meta entries safe: a legacy url fallback equal
to the final candidate's url, references only to existing non-meta
entries, a min_vram floor on every candidate but the last-resort one,
a capability drawn only from the vocabulary the system can report, and
descending VRAM floors within a capability group.

The capability check is the only compensating control for a typo there.
Candidate matching is a case-sensitive exact comparison against
SystemState.DetectedCapability(), so an unknown value never matches and
falls through silently instead of erroring. The vocabulary therefore
mirrors the raw return set of getSystemCapabilities(), which notably
excludes "cpu": that is a fallback key inside Capability(capMap) on the
meta backend path, never a reported capability. A CPU-only host reports
"default".

These pass vacuously until the pilot meta entry lands; the guard is
intentionally in place before the thing it guards.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* test(gallery): close coverage gaps in the meta entry lint

The ordering invariant grouped candidates by capability and asserted floors
descend within a group. A candidate with an EMPTY capability matches every
host, so it does not belong in its own group: it dominates every later
candidate whose floor is at or above its own, across capability groups.
Track a running minimum floor over the unconditional candidates instead,
which subsumes the old same-group check for the empty capability.

Every spec skipped non-meta entries, so with zero meta entries in the index
all five bodies were no-ops. Aligning GalleryModel.IsMeta() with
GalleryBackend.IsMeta(), whose semantics are deliberately opposite, would
have made all of them pass while checking nothing. Extract each invariant
into a helper over a slice of entries returning the violations it finds, and
cover those helpers with synthetic fixtures so the logic stays tested at zero
meta entries. The index-driven specs are now a thin application of already
proven logic.

Also assert the index parses non-empty, report every violation in one run
rather than aborting on the first, and parse the index once for the suite.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* ci(gallery): add nightly denormalization of meta model candidates

Fills the read-only backend, quantization and inferred_min_vram fields on
meta gallery candidates and opens a PR, modeled on the existing
checksum_checker job. Computing these needs network access, so it happens
nightly rather than at install time.

An authored min_vram is never modified: a human who measured a real load
knows more than a pre-download estimate does.

The index is rewritten via yaml.Node rather than a document round-trip. A
full round-trip reflows all ~26k lines of gallery/index.yaml, which would
bury the computed values and make the nightly PR unreviewable. The rewrite
touches only the three derived keys, so authored styling survives and a run
that computes nothing leaves the file untouched.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(ci): keep the gallery denormalize diff reviewable and self-healing

The nightly denormalization job edits YAML nodes instead of round-tripping
structs so its PR stays small enough for a human to review, but the write
path undid that: yaml.Marshal re-encoded the node tree at yaml.v3's default
4-space indent and dropped the leading document marker, reflowing roughly
6000 lines around the handful of real changes. Encode through
yaml.NewEncoder at the index's authored 2-space indent and restore the
header. A write that changes three fields now changes three lines.

Stale inferred_min_vram values were also never cleared. Both skip paths
(an authored min_vram is present, or the candidate is the last resort)
returned before touching the field, so a candidate that gained a floor or
became the last resort after a reorder kept an inferred value that
EffectiveMinVRAM reported as a real constraint, failing the meta lint with
no way for the job to self-heal. Clear the field before both skips.

The workflow discarded a whole night's work on any single failure: the
program exits 1 when a candidate cannot be estimated, which aborted the job
before the PR step, so one unreachable candidate blocked every other
refresh indefinitely. Capture the status, open the PR with what was
computed, mark the PR body as partial, and fail the run afterwards so the
problem still surfaces.

Also preserve the index's existing file mode instead of forcing 0644, and
drop the redundant //go:build ignore tag, since Go already skips dot
directories and the sibling modelslist.go carries no tag.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(gallery): add nanbeige4.1-3b meta entry with hardware-resolved variants

Adds the first real meta entry to the gallery index. It resolves to the
Q8_0 build on hosts with at least 6GiB of VRAM and to the Q4_K_M build
everywhere else, installing either payload under the stable name
nanbeige4.1-3b.

The entry carries a url equal to its final candidate's url. LocalAI
releases that predate candidates support parse the index non-strictly
and drop the key silently, so without that url they would list the entry
and install nothing. A regression spec parses the index the way those
releases do and asserts every meta entry stays installable for them.

Also teaches core/schema/gallery-model.schema.json about candidates. The
schema sets additionalProperties: false at the top level, so an author
following CONTRIBUTING.md and adding the yaml-language-server comment
would otherwise get a validation error on this entry.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(gallery): make candidate entries complete, installable entries

Reworks hardware-resolved gallery variants after a design pivot. There is no
longer a separate "meta" entry kind. A gallery entry is a normal, complete
entry that may additionally carry candidates:, a list of hardware-gated
upgrades over itself, and the entry is itself the last-resort candidate.

The previous design relied on a bare url: as the fallback for LocalAI releases
that predate candidates support. That fallback is empty in practice: none of
the 80 gallery/*.yaml files carry a top-level files:, and 1216 of 1281 index
entries carry their payload in the index entry itself, so a url alone yields a
config template with nothing to download. Since every released LocalAI reads
gallery/index.yaml live from master, merging a payload-less entry would have
shown every existing user a model that installs to a broken state. Making the
entry its own base candidate removes the problem at the root: old clients drop
the candidates key and install the entry exactly as they do today.

Resolution order is now explicit pin, then capability plus VRAM over the
declared upgrades, then the entry itself. The entry ALWAYS installs: when its
own min_vram or capability is unmet the installer warns and installs it
anyway, because there is nothing below it and refusing would make the gallery
behave worse the newer the client is. A pin naming the entry's own name is
valid and is how an operator declines an upgrade.

IsMeta() becomes HasCandidates(), ResolveMetaModel becomes ResolveVariant, and
the persisted meta_name record key becomes entry_name. GalleryBackend.IsMeta()
is a separate concept and is untouched.

The lint drops the three rules the pivot makes wrong (url equality with the
final candidate, no inline payload, unconstrained final candidate) and gains
one: the entry's own floor must sit strictly below every candidate's, since a
base that outranks a candidate makes that candidate unreachable.

The pilot entry is now the existing nanbeige4.1-3b-q4, which gains a 2GiB
floor of its own and a single 6GiB upgrade to nanbeige4.1-3b-q8, replacing the
separate nanbeige4.1-3b entry added in d0d441bb4.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(gallery): select model variants by hardware fit, not authored order

Gallery entries could already carry a list of alternatives, but selection was
an authored, ordered, first-match policy: every candidate declared a
`capability` string and the VRAM floors had to descend in a hand-tuned order.
That pushed hardware knowledge onto whoever edits the gallery and made ordering
load-bearing, so a reordered list silently changed what users installed.

None of it was necessary. SystemState.IsBackendCompatible already derives
hardware support from a backend name alone: it knows MLX and metal are
Darwin-only, CUDA is NVIDIA-only, ROCm AMD-only, SYCL Intel-only. Selection can
read that instead of asking authors to restate it.

Authoring is now just a list of names:

    - name: qwen3.6-27b
      min_memory: 4GiB
      variants:
        - model: qwen3.6-27b-mlx-8bit
        - model: qwen3.6-27b-gguf-q8
          min_memory: 28GiB

and all the intelligence moved into the selector. Given a host it drops the
variants whose backend cannot run here, drops those whose known memory
requirement exceeds what the host has, and takes the LARGEST of what is left,
because a bigger footprint is a higher quality quantization of the same model.
A variant of unknown size is kept, since nothing proves it does not fit, but it
ranks last so a proven fit always beats a guess. An explicit pin still wins
outright, and if nothing survives the entry installs its own payload: the base
always installs, this never refuses.

Available memory is VRAM when a GPU was detected and system RAM otherwise, read
through xsysinfo so a cgroup limit is honored and a container gets its own
limit rather than the node's RAM.

Capability disappears entirely, from the types, the schema and the lint. VRAM
and RAM collapse into one `min_memory`, because a model's footprint is roughly
the same wherever it lives and one figure is compared against whichever applies.
The lint rules about ordering, the capability vocabulary and floor
relationships are deleted with the hazards they described; what remains is that
every variant names an entry that exists and does not itself declare variants,
plus that any memory figure actually parses.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* gallery: size model variants with a live probe, drop the nightly denormalizer

Selection needs each variant's size to decide whether it fits and to rank
largest-first. That figure was written into the index by a nightly job, which
made the gallery carry a derived value that could drift from the entry it was
derived from. Derive it at install time instead.

pkg/vram already sizes a model without downloading it, and the gallery UI
already uses it: a remote GGUF header range-fetch, then an HTTP HEAD for the
content length, then any declared size:. It caches its results, so reuse it
rather than writing a second probing path.

A probe failure must never fail an install, so an unprobeable variant is
treated as unknown: it survives the memory filter, because nothing proves it
does not fit, and it ranks last, so a known-good fit always beats a guess. If
every probe fails, selection still terminates on the base entry.

The probe is injected through ResolveEnv rather than called directly, for the
same reason the backend compatibility check is: specs pin an exact size, or an
exact failure, without reaching the network.

With that in place three things are dead weight and go:

- The nightly job and the fields it populated. Variant.Backend was redundant
  because the backend is resolved live from the referenced entry during
  selection, and Quantization was display-only that nothing read.
- min_memory on the base entry. The base always installs and its floor could
  only warn, so it could not change any outcome.
- The lint rules and schema entries for both.

min_memory on individual variants stays, as the override for when the probed
size is wrong. An authored figure now suppresses the probe entirely rather
than merely outranking it, so it costs no round trip.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(gallery): expose model variants for selection over API, CLI and MCP

A gallery entry may carry `variants:`, alternative builds of the same model.
Selection already worked at install time, but nothing could see what an entry
offered or ask for a specific build, so the feature was undrivable.

Listing: `GET /api/models` now reports `variants` and `auto_variant` for the
entries that declare variants. Each variant carries its resolved backend, its
measured size and whether it fits this host. `auto_variant` is what installing
without a choice would pick right now.

The new gallery.DescribeVariants runs the same variantOptions + SelectVariant
pass the installer runs, so the reported default cannot drift from what
installing actually does, and HostResolveEnv is extracted so both derive the
host and share pkg/vram's probe cache from one place.

Performance: an entry that declares no variants returns early without touching
the probe, so the ~1280 ordinary entries cost exactly what they cost before.

Selection: `variant` is accepted on POST /models/apply, as a query param on
POST /api/models/install/:id, on the gallery apply file/string request, as
`local-ai models install --variant`, and as a parameter on the install_model
MCP tool (both the httpapi and inproc clients). Empty means auto-select.

An unknown variant name now fails the install naming what was requested. This
closes a real hole: an entry declaring no variants short-circuits before
selection runs, so a requested variant was previously dropped silently and the
install reported success.

startup.InstallModels ends in a variadic model list, so install options could
not be appended to it; InstallModelsWithOptions is added alongside and
InstallModels delegates to it. No caller signature changed.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(gallery): drop the redundant variant min_memory field

Variant.MinMemory was an authored override for when the live probe misreads
a variant's footprint. It duplicated an existing field: probeEntryMemory
already passes the entry's declared size: into EstimateModelMultiContext,
whose cascade prefers that declared size over its own guesswork. Correcting
size: on the referenced entry fixes the figure for every consumer rather
than only for variant selection, so min_memory shadowed the right answer.

A variant is now nothing but a name. Its effective size is exactly the probe
result, and an unknown stays unknown: it survives the filter and ranks last.

EffectiveMemory loses its error return along with the field. The authored
string was the only thing that could fail to parse, so the error had no
remaining source and was propagating dead nil-checks through SelectVariant,
DescribeVariants and the pin warning.

Selection behaviour is unchanged. The specs covering probe-derived sizing,
ranking, filtering, the unknown-size path, pin recall, entry/variant
metadata split and deep-copy isolation all survive; the three install specs
that needed a definite size now declare it through the referenced entry's
own size:, which exercises the documented escape hatch directly.

gallery/index.yaml is untouched: no entry ever carried the key.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(gallery): rank the entry's own build against its variants

Variant selection pulled the declaring entry's own payload, the base, out
of the candidate set and consulted it only once every declared variant had
been rejected. Two real failures followed.

A variant whose size the probe cannot determine deliberately survives the
memory filter, because nothing proves it does not fit. As the only survivor
it then won outright on any host, however small: a 2GiB machine installed an
unmeasured variant in preference to the 4GiB build the entry itself ships,
with no warning. 241 of the 1280 current index entries carry no files and no
size, which is exactly that shape.

"Largest wins" also broke whenever the base was the largest. An author
writing a Q8 entry that offers a Q4 downgrade for small hosts, a natural
shape that nothing in the lint, schema or docs discourages, had the Q4
installed on every large host instead.

Make the base an ordinary participant. It is still exempt from both filters,
so selection always terminates on something installable, but it is now
ranked against the variants: a proven fit first and largest, then the base,
then any variant whose size nothing could measure. Both failures disappear
together. The base is probed for its size accordingly, which it was not
before, because an unsized base would lose every contest to an unmeasurable
variant.

FellBackToBase is kept but narrowed to "no declared variant survived",
rather than "the base was chosen", since the base now also wins on merit and
that is not worth warning about.

A recalled variant pin also became a permanent install failure. A pin the
caller supplies on this request must stay fatal, but one recalled from
._gallery_<name>.yaml can be invalidated by any later gallery edit, and
failing on it turned one rename into a model that could never be reinstalled
or upgraded again short of deleting a dotfile the user has never heard of.
A stale recalled pin is now dropped with a warning naming it, and selection
runs as if it had never been recorded.

Also drop the last textual reference to two abandoned designs from the
DetectedCapability comment, correct the documented variants JSON example,
which showed a memory_bytes of 0 that omitempty makes impossible, and remove
an em dash from the install skill.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(gallery): budget variant memory from RAM when a GPU reports no VRAM

Variant selection read its memory budget from VRAM whenever a GPU
capability was detected, and from system RAM only when none was. Apple
Silicon satisfies the first branch and fails the premise: arm64 macs report
the metal capability unconditionally, without probing anything, while
TotalAvailableVRAM has no discrete VRAM pool to find and returns zero. The
budget therefore came out as zero on every Mac.

Zero drops every variant carrying a known size, so the base build was
installed on all of them however much memory the machine had. The feature
was inert on the platform, and silently: falling back to the base is a
legitimate outcome, so nothing looked wrong.

Take VRAM only when it is actually a number, and fall back to RAM
otherwise. On a unified-memory host RAM is not an approximation of the
budget, it is the budget, since the GPU shares it. A discrete GPU whose
VRAM could not be read also lands on RAM, which overstates what the card
holds but understates nothing the host has; the previous zero understated
both.

An unreadable RAM figure still yields zero and still installs the base, so
a genuinely unknown host is not talked into a larger download.

This is what turned tests-apple red: "installs a fitting variant's payload
under the entry's own name" asserts on selection, and the runner resolved
to the base because its budget was zero. The added specs pin the branch
directly rather than relying on a macOS runner to notice again.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(ui): add a model variant picker to the models gallery

PR #10943 shipped the server side: a gallery entry may declare `variants:`,
`GET /api/models` attaches `variants` and `auto_variant` to declaring
entries, and `POST /api/models/install/:id` accepts a `variant` query
parameter. Nothing in the UI consumed any of it, so the feature was not
reachable from the browser. This wires it up.

modelsApi.install takes an optional second argument and appends an encoded
`?variant=` only when one is given, so every existing call site keeps
sending exactly the request it sent before.

On the models table, an entry that declares variants gets a split button.
The primary Install still installs the auto-selected build, because auto is
the default and the point of the feature; the chevron opens a menu for a
deliberate override. It follows the Backends.jsx precedent: one shared
Popover re-anchored per row, rendering .action-menu items, which brings
Escape, outside-click and focus return along with it. An entry that
declares no variants renders exactly as it did before.

A variant that does not fit is dimmed but stays selectable, since the server
honors an explicit choice with a warning rather than refusing it.

memory_bytes is omitempty on the wire, so an absent key means the size is
unknown and never zero. A single helper guards both the menu and the detail
row, because formatBytes would otherwise render a falsy value as "0 B",
which reads as "needs nothing".

The expanded detail row gains a Variants section listing each build's
backend, size, whether it fits, which is the entry's own build, and which
one auto-selection would pick, built from the existing DetailRow helper and
.badge classes.

Eight Playwright specs cover the picker, including that plain Install sends
no variant parameter and that choosing one sends it. One pre-existing
assertion was scoped with .first(): the Variants section legitimately adds
more llama-cpp badges to the detail row, which tripped strict mode.

UI line coverage 49.42% -> 49.36% against a 40.0 baseline and 0.8pp
tolerance; branch coverage rose 72.04% -> 72.66%.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(gallery): describe model variants from a companion endpoint

Variant description probes each referenced entry's weight files over the
network: an HTTP HEAD plus a ranged GET, serial, five seconds per probe
with no aggregate deadline. Running it inline in GET /api/models made one
listing cost (entries x variants) round trips. The Manage page fetches
with items=9999, so at 200 declaring entries that is ~1000 serial probes,
minutes of a blocked handler and gigabytes of range traffic for a single
page load. Only one entry declares variants today, but the feature exists
so that many will.

Follow the precedent already set for VRAM estimates. The listing now
reports only has_variants, a length check on loaded metadata that touches
nothing, and GET /api/models/variants/:id returns the description for one
entry, mirroring estimate/:id in route shape, auth and error handling.
DescribeVariants itself is unchanged; only its caller moved.

The picker fetches lazily at the two points where a user asks to see
variants, opening the split-button menu and expanding the detail row, and
caches per entry for the page session. An entry declaring no variants
issues no request at all.

A spec counts real HTTP hits on the weight files, so it goes red if
description becomes reachable from the listing path again through any
caller.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(ui): filter the model gallery to entries that declare variants

The gallery is heading towards showing parent entries and hiding the
individual builds they reference, so a user sees one row per model
rather than six quantizations of it.

Adoption is a single entry today, so defaulting to that would leave a
one-row gallery. This ships the migration-phase inverse instead: the
default is untouched, and a toggle narrows the list to only the entries
that declare variants. It previews the end state and changes nothing
until someone asks for it.

The filter is server-side, next to term/tag/backend/capability and above
the pagination arithmetic. The listing paginates at 9 items, so
narrowing on the client would leave totalPages and availableModels
describing the unfiltered set and hand the user empty pages. It selects
on HasVariants(), which reads already-loaded metadata, so it issues no
variant probes.

The parameter is named has_variants after the listing field it selects
on, and is compared against "true" like the other boolean query params
(all_users, save_checkpoint), so has_variants=false reads as absent.
With it omitted the response is byte-for-byte what it was before.

The control is the shared Toggle component, matching the fitsFilter
toggle already on this page: same wrapper class, same icon and label
shape, same localStorage persistence. Unlike fitsFilter it resets to
page 1 on change, which a server-side filter has to do.

Stacking the toggle with a tag or backend filter easily yields nothing
while one entry declares variants, so the empty state now names the
variants filter as the cause rather than leaving a user to conclude the
gallery is broken.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(ui): render gallery model descriptions as Markdown

Gallery descriptions are Markdown, but the React UI dumped them raw, so a
model whose description opens with an ATX heading showed a literal
"# Qwen3.6-27B [](https://chat.qwen.ai)" in the list.

Full-description areas now render through renderMarkdown (marked +
DOMPurify), matching how Backends.jsx and the Manage detail panels already
handle the same content:

  - Models.jsx expanded detail row
  - VoiceLibrary.jsx voice detail header

The truncated one-line previews must not render block Markdown: a leading
"#" would become an <h1> and wreck the row height and rhythm. They get a new
stripMarkdown() helper instead, which reduces Markdown to a single line of
readable plain text. It is used for the cell text and for the title tooltip,
since a tooltip full of "[](url)" is no better than a cell full of it:

  - Models.jsx gallery table description cell
  - Manage.jsx model and backend resource-row descriptions

stripMarkdown walks marked's lexer output rather than running regexes over
the source, so what it strips is by construction what renderMarkdown would
have rendered, and it needs no new dependency. Output lands in JSX text
nodes, so React escapes it; no new dangerouslySetInnerHTML beyond the two
full-description sites, both of which run DOMPurify.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(ui): strip Markdown from the backends table description cell

Commit b35d630cf fixed this for gallery models but left the Backends admin
page with the same asymmetry: its detail panel renders the description
through renderMarkdown, while the collapsed table row dumped the raw gallery
string into both the cell body and the title tooltip.

That is user-visible. 40 of the 949 entries in backend/index.yaml carry
Markdown - insightface uses inline code backticks, others use lists and
links - and backend descriptions also contain embedded newlines, so the
one-line cell showed literal syntax.

The cell now runs stripMarkdown over the description once and uses the
result for the text and the title, matching Models.jsx and the
ResourceRowDesc component in Manage.jsx. The '-' placeholder is preserved,
and now also fires when a description reduces to nothing after stripping.
The detail panel is untouched and no new dangerouslySetInnerHTML is
introduced: stripMarkdown output lands in a JSX text node, so React escapes
it.

Three Playwright specs cover it: a description with a heading, inline code
and a link renders as clean text with no literal syntax and no block
element in the cell, the title tooltip carries the same stripped text, and
a backend without a description still shows the placeholder.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* ui(models): polish the variant detail view and scope rendered Markdown

The gallery detail pane rendered every field through the same two-column
label/value row, including the description. Multi-paragraph prose in a value
cell ran eight rows tall at the top of the pane on a ~1200px measure, breaking
the grid's rhythm exactly where the eye enters. Move it into its own full-width
block above the table, capped at a 68ch measure, keeping the label.

Rendered Markdown had no scoped typography anywhere in the app, so a
description opening with `#` inherited the browser default 2em inside a 13px
surface while a `##` further down was indistinguishable from body text. Add a
reusable .markdown-body block mapping h1-h6, paragraphs, lists, links, code,
blockquotes, images and tables onto the existing type scale, and apply it to
every renderMarkdown() consumer: the models detail, the backends detail, both
Manage details and the voice library detail.

Rebalance the variants list so the name leads. Backend and size drop from
badge/secondary weight to muted metadata; the FITS badge goes entirely, since
it was true of nearly every row and so said nothing, while the variant that
does not fit keeps a warning badge and a dimmed name. AUTO-SELECTED stays
marked because it answers what a plain Install produces. Rows share the
parent's grid tracks via subgrid so name, backend, size and status line up
down the list instead of raggedly following name length.

Finally, make each variant row actionable. It looked like a list of choices
but was inert text, with per-variant install hidden behind the split-button
chevron elsewhere; each row is now a button onto the existing
handleInstall(modelId, variant) path, with hover, keyboard focus and a
disabled state while an install is in flight.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(gallery): collapse the listing to one row per model

The listing supported has_variants=true, which narrowed to entries that
DECLARE variants. With adoption at three entries that showed three rows,
which is useless; it was always a placeholder.

Replace it with the view that is actually useful: the deduplicated
gallery. Show every entry installable in its own right and nothing twice,
which means the parents plus every entry nobody references, and hide only
the builds another entry already offers as a variant, since those are
reachable through their parent.

The parameter is renamed to collapse_variants accordingly: the filter is
no longer a predicate on a row's own metadata but a view over the whole
gallery. Default stays off, so the response with the parameter absent is
unchanged.

VariantReferencedIDs never reports an entry that declares variants of its
own, so parents are always visible. That guarantees every hidden entry
has a visible entry offering it, and no chain can strand a row. Variant
resolution already refuses to install such a reference, but the listing
has to stay coherent in the presence of a gallery that has one rather
than silently swallowing entries. Self-references and dangling references
hide nothing.

The referenced set is computed over the whole gallery rather than over
what the other filters left, so an entry is hidden because a parent
offers it and never because of what the user searched for. The pass is
over metadata already in memory: it resolves nothing over the network and
triggers no variant description or size probe, so the listing's zero-probe
contract still holds.

The UI toggle keeps its behaviour (persistence, page reset, clear
filters) and becomes "One row per model", which says what the user gets.
Its localStorage key moves too, since the stored value meant a different
filter.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(ui): show the collapsed model listing by default

The gallery listing is what a user reaches for to answer "what can I
install". Answering that with several rows for the same model, one per
build, makes the reader do the deduplication the collapsed view already
does, so the collapsed view is the one to land on.

The UI now asks for collapse_variants=true unless the toggle says
otherwise. The server default is deliberately untouched: a request with
the parameter absent still returns the full listing, because other API
clients depend on that response and collapsing it under them would be a
breaking change. Opting out omits the parameter rather than sending
false, so it asks for exactly the listing everyone else gets.

The stored preference changes vocabulary from '1'/'0' to 'on'/'off'. The
previous build wrote it from an effect that runs on mount, so a stored
'0' recorded that the page had been opened rather than that anyone chose
the expanded view, and honouring it would pin every earlier visitor to a
default they never picked. Only the new vocabulary counts as a choice;
a legacy '1' meant the collapsed view and is what the new default gives
anyway, so no earlier deliberate choice is lost.

Collapsing being the default also changes what the empty state may say
about it. An opted-into filter can be named as the cause of an empty
result; a default cannot, so the filters keep the top line and the
collapsed view drops to a hint below it, shown only once filters are
narrowing the set. For the same reason "Clear filters" now restores the
collapsed default instead of switching it off, and the toggle alone no
longer counts as a filter worth offering to clear.

The label stays "One row per model": it describes the view the user is
looking at rather than an action, so it reads the same whether it is
opted into or out of.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* gallery: group alternative builds of the same weights under variants

Sweep the gallery for entries that are alternative builds of the same
weights (different quantization, precision, or runtime format) and declare
them as variants of a single parent row, so the listing offers one row per
model instead of one row per quantization and the installer picks the
largest build that this host can actually run.

41 families over 95 entries, turning 54 entries into variants.

The parent is the bare-named entry wherever one exists, so nothing changes
about what any existing entry installs. Ranking already selects the largest
fitting build regardless of which entry is nominally the parent, so the
parent only decides the pathological case where nothing fits. For the ten
families that have no bare-named entry, the smallest build is the parent,
since that is the one that has to install when nothing fits.

Grouping was verified against the actual model filenames rather than the
entry names alone. Different parameter sizes, languages, finetunes, and
products that merely share a name prefix are left as separate rows: the
qwen3.6 APEX and pi-tune finetunes, the DFlash and MTP speculative-decoding
pairings, English-only versus multilingual Whisper, the QAT versus non-QAT
Gemma 4 weights, and the abliterated FLUX build are all distinct models.

Six parents define YAML anchors that other entries pull in with a merge key,
which would have handed their variants to every merging child. For the two
depth-anything anchors that would have made fourteen unrelated entries
advertise the base model's builds as their own. All 26 merging children
therefore carry an explicit empty variants list, which overrides the merged
key and is equivalent to the key being absent.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(gallery): rank model variants by host backend preference

Variant auto-selection filtered candidates by whether their backend can
run on the host, then ranked the survivors by size alone. The backend
never influenced the choice beyond that gate, so a Mac offered both an
MLX build and a llama.cpp build kept neither filtered and installed
whichever was larger, leaving the native accelerated runtime unused. The
same held for CUDA against CPU on NVIDIA and ROCm against Vulkan on AMD.

Rank by the host's backend preference between the fit tier and size: fit
stays a filter, preference decides among the builds the host can equally
hold, and size still separates builds on equally preferred runtimes.

The preference data stays in one declarative table in pkg/system, now
read by a prefix lookup instead of a switch, so adding a capability or
reordering one host's runtimes is a one-line edit and the gallery's
ranking code carries no per-backend branching. MLX joins the metal rule
ahead of metal itself, which is inert for the existing alias-resolution
consumer because no alias group holds a candidate named for mlx.

An unrecognised backend, an unrecognised capability and an absent
preference list all collapse to the previous size-only ordering rather
than erroring or dropping candidates.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(gallery): rank variants by engine name, not backend build tag

Variant auto-selection ranked candidates with
SystemState.BackendPreferenceTokens, but that function and the variant
ranker speak different vocabularies.

BackendPreferenceTokens returns BUILD TAGS ("cuda", "rocm", "sycl",
"vulkan", "metal", "cpu"). It exists to match installed backend build
directory names like "llama-cpp-cuda-12" during alias resolution in
ListSystemBackends. Variant ranking instead matches a gallery entry's
`backend:` value, which is an ENGINE NAME: "llama-cpp", "vllm",
"vllm-omni", "sglang", "mlx" and the rest. No engine name in
gallery/index.yaml contains "cuda", "rocm", "sycl" or "vulkan".

preferenceRank matches by substring, so on an NVIDIA host the tokens
[cuda, vulkan, cpu] matched neither "llama-cpp" nor "vllm", every
candidate scored identically and size alone decided. The NVIDIA, AMD,
Intel, darwin-x86 and vulkan rules were all inert. Only metal appeared
to work, and only because the token "mlx" happens to equal an engine
name. The mismatch does not error, it silently deletes the feature.

Separate the two vocabularies. backendBuildTagPreferenceRules keeps the
build tags and its original output for every capability, including
metal, whose "mlx" token is removed again; its alias-resolution consumer
is byte-identical to before. engineNamePreferenceRules is new, holds
engine names, and is read by the new EnginePreferenceTokens, which
HostResolveEnv wires into the renamed ResolveEnv.EnginePreference. Both
tables sit adjacent under one block comment naming each vocabulary and
each consumer, and share one lookup helper so their semantics cannot
drift.

On NVIDIA the order is vLLM, then SGLang, then llama-cpp: vLLM is the
throughput engine and a model published with a vLLM build is published
that way because that build is the one worth running. AMD and Intel get
the same order, since rocm and intel builds of both serving engines
ship. Metal prefers mlx over llama-cpp. Vulkan prefers llama-cpp, the
only LLM engine with a Vulkan build. darwin-x86 and unknown
capabilities are deliberately absent rather than guessed at, degrading
to the size-only ordering that predates preference.

preferenceRank stays generic and names no engine and no capability, so
adding a runtime remains a one-line table edit.

Specs pin the NVIDIA and metal rules through the live table and the real
HostResolveEnv wiring, so emptying the engine table or wiring the build
tag source back in both go red. A regression table asserts
BackendPreferenceTokens' original output per capability, and mirrored
locks assert neither table carries the other's vocabulary.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* docs: record that variant selection ranks by engine before size

A gallery entry can now declare variants, and selection ranks the builds a
host can run by engine preference before size. Nothing told a contributor
adding a backend that engineNamePreferenceRules exists, so a new engine would
silently rank below every known one and lose to whatever build happened to be
larger on hosts where it should have won.

Document the step where a backend is added, warn against the sibling
backendBuildTagPreferenceRules table (build tags, not engine names: the wrong
table matches nothing, scores every candidate equally and disables the
preference without erroring), and index it from AGENTS.md.

Fix the authoring and user docs, which still claimed the largest surviving
build wins. An author grouping builds under one entry has to be able to
predict what a user gets, and size alone no longer decides it.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(cli,mcp): describe variant auto-selection as preference before size

The CLI flag help and the install_model tool schema both still said
auto-selection takes the largest build that runs. Ranking now puts engine
preference ahead of size, so on NVIDIA a vLLM build wins over a larger
llama.cpp one. An assistant reading the old schema would tell users the
wrong thing.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(gallery): prefer llama.cpp over GPU serving engines on hosts with no GPU

engineNamePreferenceRules had no row for the "default" capability, which
getSystemCapabilities() returns both when no GPU is detected and when a GPU
is present but under the 4 GiB VRAM floor. A missing row yields an empty
preference list, which preferenceRank reads as "score everything equally",
collapsing variant selection to size alone.

That would be harmless if the hardware filter dropped GPU serving engines on
such a host, but it does not. IsBackendCompatible derives support from the
engine NAME, and "vllm" and "sglang" contain none of the darwin, cuda, rocm
or sycl tokens it keys on, so they fall through to its closing "return true".
A vLLM variant therefore survives on a CPU-only box and wins whenever its
build is the larger of the two on offer: the machine installs vLLM in
preference to llama.cpp.

darwin-x86 had the identical hole. It was documented as a deliberate omission
because nothing accelerates on an Intel Mac, which is true about acceleration
and wrong about consequence: with every engine tied, download size decides.

Add rows for both putting llama-cpp first. The GPU engines are enumerated
behind it rather than left unmatched: an unmatched engine already ranks below
every listed one, so llama.cpp would win either way, but unmatched engines
also tie with each other and let size decide among them. Naming them fixes
that order. MLX is left off the darwin-x86 row on purpose so it ranks last,
since IsBackendCompatible admits darwin-tokened engines on that capability
even though MLX needs Apple silicon.

Preference orders survivors and never filters, so a model published only as a
vLLM build is still installed on a host with no GPU; there is a spec for it.

Surveyed every other value getSystemCapabilities() can return. nvidia, amd,
intel and vulkan have rows; the l4t and cuda-refined values reach the nvidia
row by prefix; "apple" and "" cannot reach the vendor fallthrough because the
darwin and no-GPU branches return earlier. default and darwin-x86 were the
only live holes.

BackendPreferenceTokens and its build-tag table are untouched, and
preferenceRank stays generic, naming no engine and no capability.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* gallery: prefer speculative-decoding builds when they fit

Rank serving features between engine preference and size, so a host that can
hold a DFlash or MTP build of a model's weights installs it instead of the
plain build. Both answer faster for the same output, so whenever one survives
the filters there is no reason to take the plain build.

Precedence is now fit, then engine, then serving feature, then size. Engine
outranks the feature deliberately: a serving feature makes the right engine
faster, it does not make a wrong engine right, so a plain vLLM build still
beats a DFlash llama.cpp build on NVIDIA. Fit outranks both, and a drafter
pairing is strictly larger than the plain build, so the existing size filter
drops it on a host too small for it before this axis is consulted.

The order lives in a third preference table in pkg/system, alongside the build
tag and engine name tables. It is the odd one of the three: not keyed by
capability, because no hardware prefers a plain build over an equivalent
faster one, and matched against whole segments of a gallery ENTRY NAME rather
than as a substring of a backend value. Nothing on a gallery entry declares a
serving feature, and tags are not a usable substitute: gemma-4-e2b-it:sglang-mtp
carries an mtp tag while ornith-1.0-9b-mtp and qwen3.6-27b-nvfp4-mtp carry
none. Entry names are author-supplied free text, unlike the closed engine
vocabulary, so a short marker can turn up inside an unrelated word and whole
segment matching is what keeps smtp-assistant from ranking as an MTP build.
The block comment over the tables now documents all three together and states
what each is matched against; the ranking code names no feature, so adding one
stays a one-line edit to the table.

29c49203b rejected these entries as serving configurations rather than
alternative builds of the same weights. The definition is now "alternative ways
to serve the same model", which includes them, so regroup 14 entries under 12
parents. Judged by the files each entry points at: the qwen3.6, qwen3.5, qwen3
and deepseek pairings are the base GGUF plus a drafter, the gemma-4 QAT MTP
entries are the same QAT weights at a different quantization plus an MTP
drafter, and the two sglang MTP entries describe themselves as the same model
served with speculative decoding. Left separate: qwen3.6-27b-mtp-pi-tune, a
finetune with its own weights, and every entry whose base model LocalAI does
not ship as its own row, which is the whole Qwopus line plus gemmable-4-12b-mtp,
mimo-7b-mtp:sglang and qwen3.5-4b-dflash.

None of the twelve parents defines a YAML anchor, so no variants key can leak
through a merge key and no empty override was needed this time. The index was
edited by line insertion only.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* test: check env restore errors in capability and variant specs

errcheck flagged ten unchecked os.Setenv and os.Unsetenv returns in the
specs added while the pre-commit hook was being skipped. Restoring an env
var is exactly the place a silent failure leaks state into the next spec,
so assert on it rather than suppressing the linter.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(gallery): make the mtp tag authoritative for serving-feature ranking

Variant auto-selection ranks survivors by fit, then engine, then serving
feature, then size. The serving-feature lookup read only whole alphanumeric
segments of a variant's entry name, because tags were inconsistent: every
dflash entry carried a dflash tag, but only 7 of 20 MTP entries carried an
mtp tag.

Tag the 13 untagged MTP entries, then teach the lookup to read tags as well
as names. A tag is now the authoritative signal and is compared whole and
case-insensitively, which is safe precisely because a tag is a deliberate
declaration rather than free text: there is no word-inside-a-word failure
mode, so the segment splitting the name half needs is unnecessary there.

The name check stays as a fallback rather than being replaced. Switching to
tags only would have regressed the six already-grouped entries on the day it
shipped, and would depend on tagging discipline that does not exist yet.

The lookup still names no feature, so adding one remains a one-line edit to
servingFeaturePreferenceTokens.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(gallery): make a declared tag the sole serving-feature signal

Variant auto-selection ranks survivors by fit, then engine, then serving
feature, then size. The serving-feature lookup recognised a speculative build
by either a declared tag or a whole segment of its entry name. Drop the name
half: a tag is now the only signal.

A name is author-supplied free text and a naming convention is not a contract,
so reading a marker out of one infers a capability nobody declared. The gallery
already had the failure in it: the four NVFP4 entries name MTP-bearing weights
while setting no option that enables speculative decoding, and being live
variants they were winning the feature axis without answering any faster.

overrides.options was considered as the replacement and rejected. It carries
spec_type:draft-mtp / spec_type:draft-dflash, which is what actually turns the
feature on, but that spelling is llama.cpp's config vocabulary: ds4 spells the
same feature mtp_path and sglang spells it speculative_algorithm in a
referenced config. Keying a cross-backend ranking decision on one backend's
option syntax would rank the other backends' builds as plain. Options are the
curation-time check instead, and never reach the selection logic.

With no fallback left, tag correctness is load bearing, so audit every entry
against the rule "tagged when the entry configures that feature, in whatever
vocabulary its backend uses". Three entries configure MTP untagged and gain the
tag (hy3, glm-5.2, qwythos-9b-claude-mythos-5-1m, all spec_type:draft-mtp with
no marker in their names). Four carry the tag while configuring nothing and
lose it: qwen3.6-27b-nvfp4-mtp, qwen3.6-35b-a3b-nvfp4-mtp,
qwopus3.6-27b-coder-mtp-nvfp4 and qwopus3.6-27b-v2-mtp-nvfp4, whose only option
is use_jinja:true. The dflash side was checked independently rather than assumed
consistent: all five dflash entries declare spec_type:draft-dflash and all five
are tagged, so it needed no edits.

Four entries keep a tag that a literal spec_type-only reading would strip,
because they configure MTP through a different backend: deepseek-v4-flash-q2-mtp
via ds4's mtp_path/mtp_draft, and the three sglang entries via
speculative_algorithm in their referenced configs. Stripping those would
contradict the reason spec_type was rejected as the signal and would demote four
genuinely faster builds to plain.

The index was edited by line insertion and deletion only, never round-tripped
through a serializer. A resolved-tag diff across all 1272 named entries, taken
after merge keys are applied, shows exactly these 7 changing and no entry
gaining or losing a tag through an anchor.

The two specs that pinned the name fallback are inverted rather than deleted,
since a name silently promoting a build is the regression worth guarding. The
whole-token guard survives on the tag path, where smtp must still not match mtp.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(gallery): make deepseek-v4-flash variant targets installable

Clicking install on deepseek-v4-flash failed with "invalid gallery model".
The parent entry is fine, but all four entries it was grouped with declared
neither url: nor config_file:, and applyModel needs one of the two to have
anything to build a config from. They carry urls: (plural), the informational
HuggingFace link list, which is a different field. None of the four was ever
independently installable, so grouping them routed a previously-working
install into a broken entry.

Give each the url: the parent already resolves through. virtual.yaml is a
no-op base, and applyModel passes overrides to InstallModel separately from
the fetched config, so backend: ds4, the parameters and the ssd/mtp options
all still land exactly as authored. This is the same pattern the parent and
many other GGUF entries in the index already use.

Add the lint rule that should have caught this. checkVariantReferences only
proved a target exists and is not itself a parent, which is structural
validity: an entry can exist, declare no variants, and still be
uninstallable. checkVariantTargetsInstallable mirrors applyModel's
precondition instead, and names the parent, the target and the missing
fields, because whoever hits it is reading a gallery entry and has no reason
to know applyModel exists.

The two index-driven resolution specs live in their own Ordered container:
an Ordered container stops at its first failure, so sharing one with the lint
rules let a lint breach skip them silently.

Nine further entries gallery-wide have the same defect and are unrelated to
variants, so they are broken installs that predate this branch. They are left
alone here rather than buried in a regression fix, and widening the rule to
cover every entry is deferred with them so the gate can ratchet up in one
step instead of needing a skip list.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(gallery): install entries with no url or config_file on an empty base

applyModel had three branches: fetch a base config from url:, build one from
an inline config_file:, or fail with "invalid gallery model". An entry
declaring neither is now installed on an empty base config, with overrides:
and files: supplying everything.

This is what the ~345 entries pointing at gallery/virtual.yaml were already
getting. That stub is five lines carrying name, description and license.
description and license are overwritten from the gallery entry immediately
after the fetch, and the name never reaches disk because InstallModel prefers
the install name. Crucially applyModel passes model.Overrides to InstallModel
as a separate argument rather than merging it into the fetched config, so
nothing an author writes depends on that base existing. The fetch bought a
round trip to GitHub and nothing else.

That makes f4ef80173 the wrong fix, so it is unwound. The four url: lines it
added to the deepseek-v4-flash variants are reverted: they are a pointless
network fetch now, and the family installs without them.

Relaxing the branch would hide a real authoring mistake, so a payload rule
replaces the base-config rule. An entry with no url, no config_file, no
overrides and no files installs nothing and would leave an empty model
directory while reporting success, so it is refused by name. The caller's
request counts toward the payload, because its overrides and files are merged
into the install exactly as the entry's own are. urls: (plural) is the
informational link list and does not count, which is what the four entries
that shipped broken had and why they were still uninstallable.

checkVariantTargetsInstallable asserted every variant target declares a url:
or a config_file:, which is no longer true and would now reject correct
authoring. checkEntriesInstallSomething pins what survives instead, and covers
every entry rather than only variant targets: the hazard is a half-written
stanza and a parent can be one as easily as a target. The old rule was scoped
to targets precisely because nine unrelated entries would have failed a
gallery-wide version; those nine are valid now, so the deferred ratchet
happens here in one step. 1280 entries, zero violations.

Those nine (aurore-reveil_koto-small-7b-it, lfm2-1.2b, the six liquidai_lfm2
entries and deepseek-v4-pro-q2-ssd) become installable for free. Each carries
overrides: and files:, and one of them is driven through the real install path
in a spec.

The no-fetch spec is paired rather than bare: an assertion that nothing was
fetched proves nothing unless something could have been, so a control runs the
same fixture with a url: pointing at a base config that is not there and
asserts the install fails. Only then does the identical fixture without the
url passing mean the read was skipped.

Follow-up, deliberately not here: the ~345 entries still naming virtual.yaml
can drop their url:. That is 345 index edits with their own risk, and mixing
them in would bury this change.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* ui(models): let search bypass the variant collapse, drop the toggle

The models page collapsed the gallery to one row per model by default and
offered a toggle to see every individual build. Because the collapse composed
with the search term, a build another entry offers as a variant could not be
found by typing its name, so the toggle was the only way to reach those builds
in the UI. A user who typed a name they knew existed got "no models found",
which reads as "that model does not exist".

Collapse is for browsing; search is for finding. An explicit search term now
bypasses the collapse in the listing handler, so a name lookup returns matching
entries whether or not a parent offers them. The term is trimmed once at the
top of the handler, so whitespace is neither a search nor a bypass; previously
an untrimmed blank term also narrowed the listing to whatever contained a
space. Tag and backend deliberately do not bypass: they refine a listing the
user is still reading rather than name an entry already known to exist.

That makes the toggle redundant, so it goes, along with its i18n strings in all
six locales, its localStorage persistence, its participation in "Clear filters"
and the empty-state hint telling users to turn it off. The hint was doubly
stale: it pointed at a control that no longer exists, and it was untrue exactly
when a user has a search term, since searching now sees every build. The page
always requests the collapsed listing.

The stored preference key is left inert rather than cleaned up: nothing reads
it, so a user who had the toggle off simply gets the collapsed view.

collapse_variants stays on the API, off by default, because other clients want
either view and the UI dropping its control is no reason to remove a working
parameter.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(ui): give the models gallery filter form a deliberate structure

The filter area had accreted controls into one undifferentiated flow. The
"Fits in GPU" toggle and the backend select were direct children of
.filter-bar, the same wrapping container as the 18 taxonomy chips, so their
position was decided by how many chips happened to wrap at the current width
rather than by any layout intent. At narrow widths they were pushed past the
right edge of that container's horizontal scroll and became unreachable
entirely.

Restructure into three bands inside the house .filter-bar-group wrapper that
components/FilterBar.jsx already uses on Backends and the System tabs:

  1. query scope: search plus the backend select
  2. taxonomy: the chip row, alone, free to wrap
  3. refinements: fits-in-GPU and context size, under a hairline rule

The backend select leads the chips rather than trailing them because picking a
backend disables the use cases that backend cannot serve, so it gates the row
below it. Fits-in-GPU and context size share a band because they are one
control group: the context size is the length the VRAM estimate is computed at,
and that estimate is what the fits filter tests against.

Chips had no visible keyboard focus indicator. The global focus ring is wrapped
in :where(), so it carries the specificity of a bare :focus-visible, ties with
.filter-btn and loses on source order, leaving focused chips showing their
resting drop shadow. Restate the ring where it outranks both resting and hover.

Also: aria-pressed on the chips, a real label association and aria-valuetext on
the context slider (it steps over an index, so it announced "2"), disabled chip
styling moved off inline styles, a prefers-reduced-motion block for the chip
transition, and the hard-coded English "Context:" moved into all seven locales.

No behaviour change: same filters, same state, same requests. Page reset on
change, localStorage persistence and "Clear filters" verified unchanged.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(ui): let the models recommendations panel fade into the background

The "Recommended for your hardware" strip rendered at full height on every
visit regardless of how many models were already installed, costing 186px at
1600px wide (287px at 1100px, where its cards wrapped to two rows) and pushing
the first gallery row to y=554 / y=703.

Make its prominence track how much the user still needs it. The panel now
defaults to a one-line summary once anything is installed, and both the
collapse choice and the existing dismissal persist:

  collapsed = explicit user choice, if one exists
            : installedCount > 0

The preference is three-valued on purpose. A boolean cannot tell "the user
expanded it" apart from "the user has never chosen", and those need opposite
handling when the installed count later crosses zero: someone who deliberately
opened the panel on an empty instance should not have it collapse out from
under them when their first model finishes installing.

Collapsed keeps the card, icon, title and a suggestion count, so the panel is
recovered by clicking what you are already looking at rather than by hunting.
Expanded is unchanged, because for a user with nothing installed it was never
the problem. Collapsed reclaims 145px at 1600 and 420, and 246px at 1100.

Models.jsx gains a statsLoaded flag: stats initializes to installed:0, so
reading it before the fetch resolves would render expanded and collapse a frame
later, which is exactly the layout shove this removes.

The dismissal key moves to the page's localai-models-* convention; the old
localai_rec_models_dismissed is still read, never written, so an existing
dismissal is honoured rather than resurrected by the rename.

Accessibility: the disclosure is a real button whose accessible name is the
visible title alone, with state on aria-expanded and aria-controls resolving in
both states, because the grid is hidden via the hidden attribute rather than
unmounted. That also keeps the four install buttons out of the tab order while
collapsed. The app's global focus ring applies; no per-component outline is
added, per the warning in App.css. Reveal animates opacity and transform only,
never height, and both it and the chevron rotation are disabled under
prefers-reduced-motion.

Only en had a recommended block, so the other six locales were falling back to
English for the whole panel. Translated the complete block rather than adding
one orphaned key to files that would still render the title in English.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(downloader): recover from a leftover .partial on non-HTTP URIs

An interrupted download leaves a `<file>.partial` behind. The partial
handling in DownloadFileWithContext gated resume on `err == nil &&
uri.LooksLikeHTTPURL()`, so for any URI that is not literally http(s)
the branch fell through to `else if !errors.Is(err, os.ErrNotExist)`,
which with a nil err is true. The download then failed with an error
wrapping nil:

  failed to check file ".../Ternary-Bonsai-27B-Q2_g64.gguf" existence: <nil>

Every gallery file URI uses `huggingface://`, so a single interrupted
download made that model permanently uninstallable until someone
deleted the partial by hand. The `<nil>` in the message compounded it
by pointing debugging at a filesystem failure that never happened.

Restructure the handling as an explicit switch over the four real
states: partial exists and is resumable, partial exists and is not
resumable (discard and restart, as already done for an HTTP server
without range support), no partial, and a genuine stat failure. The
error branch is now only reachable with a non-nil error, names the
path that was actually stat'd, and wraps with %w.

Discarding is required for correctness and not merely convenience: the
writer opens the partial with O_APPEND, so an un-resumed download would
concatenate a fresh body onto stale bytes.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(ui): tell the models gallery's variant rows apart, and let browsing see every build

Both variant surfaces rendered name, backend and size. For two builds of one
model that is close to no information: a variant exists precisely because the
same weights are offered another way, so the backend usually matches and the
sizes usually land within a few hundred megabytes. Comparing
ternary-bonsai-27b-pq2 against ternary-bonsai-27b-q2-g64 meant reading two names
that differ by a suffix nobody has defined anywhere in the UI.

Report the quantization and the serving features on VariantView, and derive both
server-side from the referenced entry rather than parsing names in the browser,
so every client reads the same format out of the same file the installer will
hand the backend.

Quantization comes from overrides.parameters.model first, falling back to the
file list. That order is load bearing: entries routinely ship a vision tower
alongside the language model at a different quantization, so reading the file
list first reports the mmproj's format. Matching walks `-` and `.` delimited
segments right to left; `_` deliberately does not split, because it separates the
parts INSIDE a quant token and splitting on it reports Q4 for a Q4_K_M build. A
second, looser pass takes a segment's `_`-delimited tail, which catches the
gemma-4-E2B_q4_0-it.gguf style; it runs second so a precise match can never lose
to a fuzzy one further right in the name. An entry naming no format reports
nothing, which is the honest answer for a backend served from a directory of
weights.

Features are the same tag-against-vocabulary match servingFeatureRank already
ranks on, over the same host preference list. A build can therefore never be
shown as faster than one selection did not actually reward, nor rewarded without
being shown; a spec pins that agreement rather than trusting it.

The compact dropdown gets the quantization on its meta line and the bare feature
token. The detail row, which has the room, gets the quantization as its own
monospaced column so precision lines up down the list, and the feature spelled
out, because DFLASH names nothing to a user who has not met it. The referenced
entry's description stays out of both: the detail row already renders the
parent's prose above the table, and a second block per variant would push a
three-variant list past a screen to restate what the columns now say precisely.

The collapse toggle comes back. 462583f38 dropped it once search bypassed the
collapse, on the reasoning that nothing was unreachable any more. That holds for
finding a build whose name you know and does not hold for browsing: no sequence
of actions enumerated the 68 builds the default view hides. Collapse is for
browsing and search is for finding, and the toggle was the browsing half.

It goes in the refinements band 0d4823362 established, not back among the
taxonomy chips where its position depended on how many chips happened to wrap. It
leads that band because it decides how many rows the other two refine over, and
because unlike fits-in-GPU it is unconditional: a host with no GPU still browses.

The search bypass is untouched and re-checked by a spec in the toggle's default
state, since restoring the control must not restore the dead end it replaced. The
empty-state hint returns but only without a search term, because a term bypasses
the collapse and the hint would otherwise point at a control that cannot change
the result. The stored preference reads 'on'/'off' only: an older build wrote
'1'/'0' from an effect that ran on mount, so those record that the page was
opened, not that anyone chose a view.

Also fixes a latent flake it exposed. The collapse_variants spec compared whole
response bodies byte for byte, and the listing envelope carries live host
telemetry that drifts between two calls milliseconds apart, so it was asserting
on the machine's memory pressure. It now compares everything the parameter
governs -- the entries, their serialization and the paging -- and is green 25/25
where it was failing about one run in three.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(ui): let the models gallery show a variant's full details

The variant list in an entry's expanded detail row says how the builds
differ: name, backend, quantization, size, and the auto-selected, base
and serving-feature markers. It cannot say what any one of them is. A
variant's own description, tags, license, source links and file list are
unreachable anywhere in the UI, because while the collapse is on a
variant has no gallery row of its own.

Give each variant row an info control that reveals its entry, rendered by
the same ModelDetail a top-level row gets, so a field added to the detail
view appears here too. variantData is withheld from the nested render: a
variant may declare variants of its own, and recursing would nest a
picker inside a picker two levels deep already.

An inline disclosure rather than a modal. The control sits inside a table
row that is already expanded, inside a variant list within that; a dialog
opened from there stacks a dismissal on a dismissal for a handful of
extra fields about the entry the user is already reading, and breaks the
page's own expand idiom. The third level is carried by an inset and a
left rule instead of another card.

The entry is fetched by exact name from the listing, once, on first use.
The listing already returns every field the detail view renders, and a
search term bypasses the variant collapse server-side, so no new endpoint
is needed and neither the listing nor DescribeVariants gains any work.
Expanding a row costs nothing; a variant nobody opens costs nothing. A
name the listing no longer returns is stated, not blanked: an empty panel
reads as a rendering fault rather than as a lookup that came back empty.

The control is a sibling of the install button, not a descendant, so
asking about a build can never install it.

The variant list keeps its content-sized columns via a trailing filler
track instead of max-content sizing, so the rows are unchanged while the
panel spanning them gets the pane width its file table needs.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(gallery): let search respect the collapse instead of switching it off

The models listing collapsed to one row per model, and an explicit search term
turned that off wholesale. Searching while collapsed therefore answered with the
individual builds a parent already offers, which are exactly the rows the view
the user asked for has no place for: typing "mtp" returned
qwen3.6-27b-nvfp4-mtp, a row that is invisible the moment the box is cleared.
The bypass was the right shape of fix for the wrong half of the problem. What a
search must not do is answer "no models found" for a build the gallery does
hold; that does not require abandoning the grouping the user asked for.

So the term is now matched against every entry either way, hidden builds
included, and the collapse decides how a match is reported rather than which
matches exist. Collapsing stops being a filter that drops rows and becomes a
substitution: a match on a build another entry offers is reported as that entry,
the one installable in its own right. Nothing becomes unfindable and nothing
comes back that the requested view cannot show.

Substitution happens after search, tag and backend, so every filter is judged
against the build that really carries the name, tag or backend rather than
against a parent that merely offers it; the other order would let backend=vllm
match a parent whose own backend is something else. The price is that the
surfaced row shows the parent's own metadata while the match was on a variant,
which is what grouping means, and the alternative is claiming the gallery holds
no such build. It happens before the count and the page math, so both describe
the rows actually handed out rather than the matches that produced them.

A parent already in the result keeps its own position and absorbs its matching
variants there, which is what leaves the browsing listing ordered exactly as it
was; a parent surfaced only by a variant takes the position of the first variant
that surfaced it. Either way it appears once, however many of its builds matched
and whether or not it matched itself. Search preserves gallery order rather than
scoring, so a surfaced parent has a real position rather than an invented one.

VariantParents never reports an entry that declares variants of its own, so a
parent is never itself hidden and one hop always lands on a visible row. The
handler follows exactly one anyway: refusing the second is what makes a gallery
the linter would have rejected terminate rather than loop.

The empty-state hint pointing at the toggle goes with it for every server-side
filter. Substitution means a match is always reported as some row, so the
collapse can no longer be why a term, a chip or a backend came back empty, and
naming it there sends the user to a control that cannot change the result. It
survives for the fits filter alone, which runs in the browser after the
substitution and judges the surfaced entry's own size: there the build that fits
really can be filtered out along with a parent that does not.

Searching a build's exact name while collapsed now answers with its parent, so
the result no longer contains the string the user typed. That is intended, and
the row is the one they can act on, but it is a real rough edge: nothing on the
row explains the connection. Closing it properly means reporting which variant
matched so the UI can say so, which the listing does not do today.

ResetGalleryModelCache is added for tests. The model cache is a package global
keyed by nothing, so a background refresh one spec triggers can land in the
middle of the next and answer it with the previous spec's gallery; the extra
specs here made that fail about one run in five. It waits for the in-flight
refresh to publish before clearing, since clearing alone only narrows the
window.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

---------

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-07-20 18:43:02 +02:00
mudler's LocalAI [bot]
465d488c90 fix(distributed): reject wrong-model requests at the backend (#10970)
fix(distributed): reject wrong-model requests at the backend (#10952)

In distributed mode the controller caches a NodeModel row naming a backend's
host:port. A worker can recycle a stopped backend's gRPC port for a different
model's backend, and probeHealth verifies liveness rather than identity, so the
probe succeeds against whatever now occupies the port and the request is
dispatched to the wrong backend. The caller gets a silent wrong-model answer.

Nothing in the request could catch this: PredictOptions had no model field, so
model identity crossed the wire only in ModelOptions.Model at LoadModel time,
and the cached-hit path issues no LoadModel. Every backend's "model not loaded"
guard checks a nil handle, which a process holding a different model passes, so
the stale row was never dropped either.

Add PredictOptions.ModelIdentity and enforce it at the point of use:

  - The controller populates it in gRPCPredictOpts from ModelConfig.Model, the
    same expression ModelOptions feeds to model.WithModel and therefore the
    same value the backend received as ModelOptions.Model. Both are read from
    one config value in one function, so they are equal by construction and the
    comparison cannot false-reject.
  - Backends compare it against what they loaded and return NOT_FOUND with a
    fixed sentinel. Enforced in pkg/grpc/server.go (27 Go backends), an
    interceptor in backend/python/common (all 36 Python backends, no
    per-backend change), and the llama-cpp / ik-llama-cpp / ds4 C++ servers.
    That is every backend with real exposure: kokoros answers all four RPCs
    with unimplemented and privacy-filter implements none of them.
  - The router's reconcile drops the stale replica row on a mismatch, so the
    next request reloads somewhere correct.

Empty means "skip the check" on both sides: a controller that predates the
field sends nothing, a backend loaded by such a controller has nothing to
compare, and the C++ server synthesizes PredictOptions internally for ASR. That
keeps upgrades working in both directions.

Scoped to the four PredictOptions RPCs. TTSRequest.model and
SoundGenerationRequest.model are deliberately NOT validated: FileStagingClient
already rewrites them to worker-local absolute paths, so in distributed mode
they already differ from the load-time value and comparing them would reject
valid requests.

IsModelMismatch requires both the NOT_FOUND code and the sentinel, unlike the
neighbouring helpers which accept either. insightface's Embedding returns
NOT_FOUND "no face detected" on a PredictOptions RPC, and a code-only check
would drop a healthy replica row on every faceless image.


Assisted-by: Claude Code:claude-opus-4-8[1m] [Read] [Edit] [Bash]

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-07-20 13:05:47 +02:00
mudler's LocalAI [bot]
f735cb24c0 fix(worker): reap deleted backends and stop models that live on a worker (#10956)
* fix(worker): reap deleted backends and stop models that live on a worker

Three related backend-lifecycle defects, all reachable from the same
production incident on a Jetson/Thor worker: a deleted backend's gRPC
process survived ~40 minutes with its directory removed from disk, a later
model load was routed to that orphan and failed with a certifi path pointing
into the deleted directory, and the admin could not stop the model because
the frontend reported it as not loaded.

1. backend.delete orphaned the process it claimed to delete
------------------------------------------------------------
s.processes is keyed by `modelID#replicaIndex` (buildProcessKey), so the
backend name never appeared in a key and was recorded nowhere on the
process. backend.delete resolved its target via isRunning/stopBackend, whose
prefix path only matches a bare *modelID* - a delete keyed on a backend name
resolved to zero keys, the stop silently no-op'd, and the files were removed
out from under a live process.

The install fast path then handed that orphan back out: it returns any live
process for the (model, replica) slot without checking which backend started
it, so a reinstalled variant inherited the deleted backend's port.

- Record backendName on backendProcess, threaded installBackend ->
  startBackend.
- Add resolveProcessKeysForBackend, matching the recorded name and resolving
  alias <-> concrete via ListSystemBackends *before* DeleteBackendFromSystem
  erases the metadata that carries the alias. Alias resolution failure
  degrades to name-only matching so a delete never fails on it.
- backend.stop goes through resolveStopTargets, which accepts a backend
  name, a model name, or an exact modelID#replica key. Its payload field is
  named "backend" but is published with all three meanings: the admin UI
  sends a backend name, UnloadRemoteModel sends a model name, and the
  router's abandoned-load reap (#10948) sends an exact replica key.
  Narrowing it to backend names alone would strand the latter two.
  backend.delete stays strict - its identifier is unambiguously a backend.
- Gate the install fast path on processMatchesBackend so a slot held by a
  different backend is restarted rather than reused. Processes with no
  recorded name (pre-upgrade) are accepted, so rollout does not restart
  every running backend.
- stopBackendExact reports a real stop failure - the process still being
  alive afterwards, which is precisely what finishBackendStop already
  detects to keep the entry and its port reserved - and backend.delete no
  longer replies success when it knew about a process and could not kill it.
  "No process was running" stays a success but is logged, so the orphan case
  is visible rather than silent.

2. /backend/shutdown reported a running model as missing
---------------------------------------------------------
ModelLoader.deleteProcess short-circuits on a miss in this replica's
in-memory store. In distributed mode the authoritative record of "is this
model loaded" is the shared node registry: a frontend replica that never
served the model itself (load balancer picked a peer, or the replica
restarted) has no local entry. The remote unload path that pkg/model
documents ("when ShutdownModel is called for a model with no local process,
UnloadRemoteModel is called") sat behind that short-circuit, unreachable in
exactly the case it exists for. #10865 reworked this function but kept the
short-circuit at the top, so the gap survived that refactor.

- deleteProcess consults the remote unloader on a local-store miss, via a
  shared unloadRemote helper so this branch and the existing
  no-local-process branch both prefer #10865's RemoteModelContextUnloader,
  preserving force propagation across the distributed boundary.
- UnloadRemoteModelContext reports ErrRemoteModelNotLoaded when no node has
  the model; it previously returned nil, making a no-op stop
  indistinguishable from a real one. The converse case (nodes have it, none
  could be stopped) already errors since #10865 joined the per-node
  failures, so that half of the original fix was dropped as redundant.
- Only when the model is absent locally AND cluster-wide does the endpoint
  report not-found, now 404 naming both scopes rather than a bare 500.
- modelNotFoundErr becomes the exported ErrModelNotFound so the HTTP layer
  can map it without string matching; watchdog's identity comparison becomes
  errors.Is.

3. Coverage for the bounded Free() that #10865 shipped untested
----------------------------------------------------------------
The original branch also bounded the pre-stop Free(), but #10865 landed that
fix first (workerBackendFreeTimeout, applied in both stopBackendExact and
handleModelUnload). That production change is therefore DROPPED here as
superseded - master's version is strictly better, since it also releases the
supervisor mutex across the call and keeps the port reserved until
termination completes.

What #10865 did not ship is a test, and the bound is load-bearing: the
router-side reap in #10948 sends backend.stop for an abandoned load, and
against a wedged backend an unbounded Free would swallow that stop before it
reached the process. Nothing failed if the bound regressed.

The spec stands up a real gRPC backend server whose Free handler never
returns - what a Python backend looks like when its single worker thread
(PYTHON_GRPC_MAX_WORKERS=1 on 37 backends) is occupied by a stuck LoadModel.
A stub socket is not sufficient and was tried first: without a completed
HTTP/2 handshake, gRPC's own ~20s connect timeout ends the call, so that
version passed against the very bug it targets. With the connection READY,
only the caller's deadline can end it, so the spec hangs to its 60s limit if
the timeout is removed and passes with it.

Its fixture process is deliberately never started. go-processmanager v0.1.1
writes Process.pid from readPID() without synchronization, so a live process
races its own monitor goroutine under -race - reproducible with a bare
Run()+Stop() and unrelated to this spec. Since
scripts/model-lifecycle-conformance.sh runs this package with -race and is
fail-closed, starting one would turn that gate red on an upstream defect. An
unstarted process still proves the point: the stop is reached and the slot
released, which is exactly what an unbounded Free prevents.

Verified: make lint (new-from-merge-base origin/master) reports 0 issues;
scripts/model-lifecycle-conformance.sh passes all three stages including the
FizzBee liveness check (1458 states, IsLive: true).

Assisted-by: Claude:claude-opus-4-8 golangci-lint
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(distributed): keep remote unload idempotent, ask presence separately

2035a4d25 made UnloadRemoteModel return ErrRemoteModelNotLoaded when no node
holds the model, so ShutdownModel could answer 404 instead of a misleading
500. That narrowed a shared adapter contract to serve one caller and broke
the documented idempotent-unload guarantee, which CI caught on PR #10956:

  [FAIL] Node Backend Lifecycle (NATS-driven) > NATS backend.stop events
         should be no-op for models not on any node [Distributed]
         Expected success, but got: model not loaded on any node

The spec name states the contract outright. The matching unit assertion was
updated in that commit; this e2e one was missed because it lives under
tests/e2e/ with no build tags and does not run in package-scoped test runs.

Caller audit - who breaks when an idempotent unload becomes an error:

- pkg/model/watchdog.go:902 (LRU memory reclaimer) is the serious one. It
  untracks a model ONLY when shutdown returns nil or ErrModelNotFound. A new
  error type means the model is never untracked, so the reclaimer keeps
  re-selecting the same entry and never reclaims - a live wedge whenever a
  local store entry outlives the remote model.
- core/services/galleryop/managers_local.go:43 (DeleteModel) would warn on
  every deletion of an already-unloaded model.
- core/services/modeladmin/{state,config,remote_sync}.go stop instances
  best-effort against models that are frequently not loaded.
- deleteProcess itself: the no-local-process branch returns the unload result
  directly, so a stale local entry for a model no longer on any node turned a
  previously-successful cleanup into a failure.

Only ShutdownModel wants the distinction, and only on the local-store-miss
path. So the distinction moves to the caller instead of the contract:

- UnloadRemoteModel/UnloadRemoteModelContext return nil again when no node
  has the model, and ErrRemoteModelNotLoaded is removed.
- New optional RemoteModelPresenceChecker (HasRemoteModel) answers the
  question directly. deleteProcess consults it BEFORE unloading, because an
  idempotent unload cannot report afterwards whether anything was stopped.
  Absent locally AND cluster-wide is the only case that reports 404.
- A failed registry lookup is surfaced rather than reported as absence: an
  unreachable registry is not evidence a model is gone, and answering a
  confident 404 off a failed lookup is how an operator gets told a running
  model does not exist.
- Unloaders that predate the extension keep working - deleteProcess attempts
  the unload rather than refusing it - and compile-time assertions in the
  nodes package now pin all three optional interfaces, since both are
  consumed by runtime type assertion where drift degrades behavior silently
  instead of failing the build.

The contract is now pinned at both levels that disagreed, each spec pointing
at the other: "with no nodes returns nil" in unloader_test.go and "should be
no-op for models not on any node" in node_lifecycle_test.go.

Verified: full distributed e2e suite 233 passed / 0 failed (the suite that
failed 232/1 in CI); pkg/model and core/services/nodes green; make lint
new-from-merge-base reports 0 issues.

Assisted-by: Claude:claude-opus-4-8 golangci-lint
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(distributed): drop replica rows when a worker stops a backend

A worker returns a stopped backend's gRPC port to its allocator as soon as
the process is confirmed dead, and hands it to the next backend that starts.
The controller's NodeModel row for the old address survives, and both
SmartRouter.probeHealth and the HealthMonitor per-model probe verify
liveness, not identity, so once an unrelated backend binds the recycled port
the stale row passes every check and the request is served by the wrong
backend instead of failing.

backend.delete is newly able to trigger this: before #10956 a delete never
actually stopped a process, so it never recycled a port. backend.upgrade has
the identical gap and always did — upgradeBackend force-stops every process
using the binary and starts none back up, while
DistributedBackendManager.UpgradeBackend never removes rows. model.unload is
the one path that gets this right today: it calls RemoveAllNodeModelReplicas
straight after StopBackend.

Report the process keys the worker terminated on the delete and upgrade
replies, and drop the matching rows in RemoteUnloaderAdapter, which already
holds a ModelLocator with RemoveNodeModel. All three call sites funnel
through that adapter, so no new interface, DB migration, or proto change is
needed. A key is reported only once its process is confirmed gone, so the
list stays trustworthy on the partial-failure replies too.

Old workers never populate the new fields. ReportsStoppedProcesses tells
"stopped nothing" apart from "does not report", so an old worker's silence
falls back to the pre-existing probe-based staleness recovery instead of
being mistaken for a completed cleanup.

Quarantine released ports for a short window as an interlock covering the
NATS round-trip between the worker freeing the port and the controller
dropping the row. It is deliberately not derived from HealthCheckInterval:
that cadence is operator-tunable and the per-model reaper can be disabled
outright, so coupling a worker-local constant to it would be silently wrong
on some clusters. Eager row removal is the fix; the delay only closes the
handoff gap.

Identity verification in probeHealth was considered and rejected: Health and
Status carry no backend identity, so it needs a proto change plus an
implementation in 36 Python and 4 C++ Health servicers, it is fail-open for
any backend not yet rebuilt, and the probeCache short-circuit means it would
not even execute during the 30s window where the misroute happens.

Fixes #10952
Refs #10954, #10956

Assisted-by: Claude:claude-opus-4-8 golangci-lint
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* chore(deps): bump go-processmanager, assert real backend termination

go-processmanager wrote Process.PID from readPID() with no synchronization
while its own monitor goroutine cleared the same field on exit, so a bare
Run()+Stop() tripped the race detector without any concurrent access from
the caller. LocalAI hit this on every backend stop.

Upstream fixed it in a94e2b7 by guarding PID with a mutex and adding
CurrentPID() as a race-safe accessor. The exported field was kept to avoid
a breaking change but is now deprecated: a direct read still races the
monitor. No tag carries the fix yet, so pin the pseudo-version.

GetGRPCPID reads through CurrentPID() instead of the field. The accessor
returns the same string under an RLock, so the empty-PID and strconv error
paths are unchanged; it is the only direct field read in the tree.

With the race gone, the Free-timeout spec no longer has to leave its
fixture process unstarted. It now runs a real child and asserts the child
genuinely exits, which is exactly what the earlier workaround gave up: the
spec could show the stop was reached and the slot released, but not that
SIGTERM ever landed. Termination is observed through Done(), which closes
only once the library has waited on the child. The pidfile-based liveness
helpers cannot serve here, because Stop() deletes the pidfile while
releasing the handle and so reports "not alive" even if no signal was sent.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude Code:claude-opus-4-8[1m] [Read] [Edit] [Bash]

---------

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-07-20 01:09:22 +02:00
mudler's LocalAI [bot]
c2704dba5b fix(gpu): detect GPUs via sysfs when no pci.ids database is present (#10966)
* fix(gpu): detect GPUs via sysfs when no pci.ids database is present

ghw.GPU() calls pci.New() before it reads /sys/class/drm and fails
outright when it cannot find a pci.ids database file. jaypipes/pcidb
embeds no database and has network fetch disabled by default, so on an
image that ships no pci.ids, GPU enumeration returns an error and every
detection path downstream goes dark.

The Dockerfile installs pciutils only in the vulkan and cublas branches,
so the Intel image had no pci.ids. A correctly passed-through Arc A310
was reported as "No GPU detected" with zero VRAM even though clinfo and
sycl-ls both enumerated it inside the same container. NVIDIA and AMD
images were shielded by their nvidia-smi / rocm-smi binary fallbacks;
Intel has no equivalent, leaving it fully exposed.

Read PCI vendor IDs directly from /sys/class/drm/card*/device/vendor,
which needs no database, and consult that from DetectGPUVendor. The
same scan replaces the ghw-only guard in getIntelGPUMemory, which is
what had been blocking the working clinfo path and keeping VRAM at
zero. Install hwdata in the base image stage as well, so ghw stops
failing for every image variant rather than only Intel.

Also apply the documented NVIDIA > AMD > Intel priority to the ghw
path, which previously returned whichever card DRM enumerated first
and so reported "intel" on a machine with an Intel iGPU at card0 and
an NVIDIA dGPU at card1.

HasGPU() carried the same blindness plus one of its own: it matched
the requested vendor against ghw's card description with a
case-sensitive Contains, so "nvidia" never matched the pci.ids
spelling "NVIDIA Corporation". It only worked because that same
description embeds the lowercase kernel driver name ("nvidia",
"amdgpu"), and it returned false outright whenever ghw errored. Route
it through the shared vendor lookup so it matches case-insensitively
and falls back to sysfs. It feeds the GPU option and NGPULayers
defaults in core/config/gguf.go.

Fixes #10941

Assisted-by: Claude:claude-opus-4-8 golangci-lint
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* refactor(gpu): key vendor detection off the numeric PCI ID in both paths

The ghw and sysfs legs were identifying vendors by different means: ghw
by substring-matching the pci.ids vendor name, sysfs by the numeric PCI
vendor ID. ghw already exposes that same numeric ID via
DeviceInfo.Vendor.ID, read from the kernel's modalias rather than from
the database, so the name matching was both a duplicate mechanism and
the weaker of the two.

It is weaker because a card absent from an outdated pci.ids gets
Name: "unknown" while its ID is still correct. Detection then failed
even though ghw had enumerated the card successfully. Verified in a
container with a vendor-less pci.ids and an Arc's modalias: before,
DetectGPUVendor returned ""; after, "intel".

Both legs now resolve through the same pciVendorIDs table and share the
hex parsing, with the vendor name kept only as a fallback for devices
exposing no parseable ID.

ghwHasVendor is deliberately not a priority pick, unlike vendorFromGHW:
HasGPU("intel") must stay true on a hybrid-graphics host whose discrete
NVIDIA card outranks the integrated Intel one.

Assisted-by: Claude:claude-opus-4-8 golangci-lint
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(gpu): silence the gosec G304 on the sysfs attribute read

gosec flags os.ReadFile with a non-literal path. The path here is the
DRM root (a package constant in production, a temp dir under test)
joined with a ReadDir entry name and a fixed attribute filename, so no
external input reaches it.

gosec's suggested autofix, os.Root, cannot be used: /sys/class/drm/cardN
is a symlink into the PCI device tree, and os.Root refuses to traverse
it ("path escapes from parent"), which would disable the whole scan.

Assisted-by: Claude:claude-opus-4-8 gosec golangci-lint
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

---------

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-07-20 00:37:06 +02:00
mudler's LocalAI [bot]
fb4c61d1c9 fix(distributed): configurable remote model-load timeout, and reap the load when it times out (#10948)
* fix(distributed): make the remote LoadModel deadline configurable

The router hardcoded a 5 minute gRPC deadline for the remote LoadModel
call. Staging finishes before the timer starts, so those five minutes
cover only the worker backend's own checkpoint load and pipeline init.
A cold load of meituan-longcat/LongCat-Video-Avatar-1.5 (~83 GB) on an
ARM64 Thor worker fails at exactly 302s with DeadlineExceeded while the
backend process is still making progress (CPU time accumulating, RSS
moving as weights are mapped), so the load was cut short rather than
wedged.

Add LOCALAI_NATS_MODEL_LOAD_TIMEOUT / --model-load-timeout mirroring the
existing backend-install timeout knob, defaulting to 5m so unset
clusters keep today's behaviour.

The cold-load hold ceiling (which bounds how long one load may hold the
per-model advisory lock) was derived from the install timeout alone, so
raising the load deadline past it would have been silently clipped.
Derive it from both budgets via ModelLoadCeilingFor:

    max(install + load + 5m staging margin, 25m)

With the defaults that is 15m + 5m + 5m = 25m, identical to the previous
constant, and the 25m floor means shrinking either budget can never
tighten the ceiling below what clusters relied on before.

Assisted-by: Claude:claude-opus-4-8 golangci-lint
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(distributed): reap the abandoned replica when a remote load times out

The gRPC deadline on the remote LoadModel call only cancels the client
side. A backend blocked in a synchronous weight load never observes its
cancelled handler context, so when scheduleAndLoad gave up it left the
worker loading with nobody waiting for the result.

Observed on an ARM64 Thor worker loading LongCat-Video-Avatar-1.5: the
client returned DeadlineExceeded at 302s, and the backend process was
still alive 30 minutes later having pulled ~57GB from HuggingFace. Every
retry stacked another multi-GB loader on the worker; they had to be
reaped by hand via POST /api/nodes/:id/models/unload.

Send backend.stop for the exact `modelID#replicaIndex` process key we
just abandoned. The exact key matters: a bare model ID stops every
replica on that node, including healthy ones serving traffic.

Only a deadline or cancellation triggers the reap. Any other LoadModel
failure is the backend answering, which means its handler returned and
the process is idle - stopping it there would discard a warm process and
its downloaded weights. The reap is best-effort and never replaces the
load error the caller is waiting on.

The `modelID#replicaIndex` format was already hand-rolled in two places
(the worker's buildProcessKey and pkg/model's log store). Rather than add
a third, export model.BackendProcessKey from pkg/model, the lowest common
dependency of both sides.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude:claude-opus-4-8 golangci-lint

---------

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-07-19 12:01:48 +02:00
mudler's LocalAI [bot]
626ae4d51e fix(model-artifacts): materialize longcat-video on the controller, and support companion repos (#10949)
* fix(model-artifacts): materialize longcat-video checkpoints on the controller

longcat-video loads a checkpoint directory: its backend.py takes
request.ModelFile when os.path.isdir(request.ModelFile) and otherwise
falls back to snapshot_download. That places it in the same class as
transformers/vllm/diffusers/sglang, but the allow-list added in #10910
did not enumerate it, so PrimaryArtifactSpec returned no managed
artifact for a bare HuggingFace repo id.

The consequence in distributed mode: nothing was acquired on the
controller, ModelFileName fell through to the raw repo id, and staging
skipped the resulting phantom /models/<owner>/<repo> path. The worker
received a blank ModelFile, fell back to request.Model, and downloaded
~83GB from HuggingFace inside the remote LoadModel deadline - so the
load could only ever fail with DeadlineExceeded while an abandoned
backend process kept downloading.

Note this materializes the full repository. The backend restricts its
own snapshot_download with allow_patterns, and the avatar repo ships
both base_model/ and base_model_int8/ where only one is ever loaded;
inferred specs have no way to carry patterns today. Tracked separately.

Assisted-by: Claude:opus-4.8 [Claude Code]

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(distributed): warn when staging skips a non-existent model path

stageModelFiles logs "Staging model files for remote node" up front, then
silently drops any path field that does not exist on the controller. The
skip itself is legitimate and must stay: a backend outside
managedArtifactBackends that takes a bare HuggingFace repo id gets an
optimistically constructed path (ModelFileName falls through to the raw
model reference) that was never materialized, and sources its own weights
on the worker. Erroring would break those configs.

But at debug level the operator is left with a reassuring staging line and
no trace of the skip, so a genuine controller-side acquisition gap is
indistinguishable from a healthy pass-through - it surfaces much later as
a remote LoadModel timeout, on a worker that is quietly downloading tens
of gigabytes. Raise the skip to warn and name the field, path, node and
tracking key. Behavior is unchanged.

Assisted-by: Claude:opus-4.8 [Claude Code]

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(model-artifacts): allow a config to declare companion artifacts

A composed pipeline needs more than one HuggingFace snapshot.
LongCat-Video-Avatar-1.5 loads its own transformer but takes the
tokenizer, text encoder and VAE from the separate LongCat-Video base
repo, so a single-artifact config cannot express it and the backend is
left to fetch the second repo itself at load time.

Widen the artifact model to target: model plus any number of named
target: companion entries. Normalize accepts the new target and
constrains a companion name to [a-z0-9][a-z0-9_-]{0,63} because that
name is the option key the backend later receives; a companion may not
claim primary_file, which only means anything for a load target.
ModelConfig.Validate requires exactly one primary and requires it first,
since Artifacts[0] is what ModelFileName, size estimation and staging all
resolve from.

Both acquisition paths now loop instead of touching index 0 alone:
preloadOne for an already-installed config, bindPrimaryArtifact for a
gallery install. Failure policy differs by provenance. An inferred
primary keeps its warn-and-fall-back, because the legacy download path
still exists for it. Companions are explicit by construction, so they are
all-or-nothing: a config naming one is asserting the backend needs it,
and failing at the acquisition boundary is far more legible than a
missing-weights error surfacing later inside the backend.

The cache key is deliberately unchanged. It hashes source identity only,
never name or target, so every already-installed managed model still hits
its existing snapshot instead of silently re-downloading. Two specs pin
that: one proving a companion and a primary with identical sources agree
on the key, and one pinning the digest of a known primary outright.

Assisted-by: Claude:opus-4.8 [Claude Code]

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(model-artifacts): hand resolved companion snapshots to the backend

A materialized companion is useless until the backend can find it, and
its location is a content-addressed cache key that does not exist until
the artifact resolves. A static gallery override cannot carry that, and
persisting it into the config YAML would rot the moment a re-resolve
produced a new key.

Synthesize it instead at load time: each resolved companion becomes
"<artifact name>:<snapshot path>" in ModelOptions.Options, reusing the
key:value convention backends already parse for options like
attention_backend. The value stays relative to the models directory so a
remote worker can resolve it under its own ModelPath once staging has
rewritten the model root. An option the author set explicitly always
wins, so pinning a companion to a local checkout still beats the managed
snapshot.

longcat-video resolves base_model through ModelPath, the same convention
qwen-tts, voxcpm, outetts and ace-step already use for companion assets.
Its sibling-directory heuristic is deleted: it looked for a LongCat-Video
directory next to the model, which cannot exist under the content
addressed .artifacts/huggingface/<key>/snapshot layout, so it was dead
code the moment the model became managed.

The gallery entry declares both repositories and restricts each with
allow_patterns. The avatar repo ships base_model/ and base_model_int8/
and only ever loads one, so fetching the whole repo would roughly double
the download. The patterns match the entry's own options (use_distill
true, use_int8 default false); enabling use_int8 here also requires
adding base_model_int8/**, which is called out in the entry.

Assisted-by: Claude:opus-4.8 [Claude Code]

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(distributed): stage managed artifact trees from the models root

Staging anchored the worker's models directory on the primary snapshot
whenever a model was managed, so a companion snapshot could not reach the
worker at all.

frontendModelsDir was derived by stripping the Model relative path off
the end of ModelFile. For a managed artifact nothing matches: ModelFile
is .artifacts/huggingface/<key>/snapshot while Model stays a bare
HuggingFace repo id, so the strip was a no-op and the "models directory"
came out as the snapshot itself. Two consequences, both silent. Staging
keys lost the .artifacts/huggingface/<key>/snapshot prefix, so two
snapshots of one model were indistinguishable on the worker. And a
companion, which lives in a sibling snapshot directory outside the
primary, fell outside that directory entirely: StagingKeyMapper.Key
collapsed its files to bare basenames and resolveOptionPath could not
resolve the relative option at all, so it was skipped without a word.

Derive the models root from the artifact tree instead when the path runs
through it, and compute the worker's ModelPath from the file's path
relative to that root rather than from the Model field. The legacy layout
is unaffected: where Model really is the relative path, the new
derivation reduces to the old one, which a regression spec pins.

This deliberately changes an invariant that router_dirstage_test.go
pinned: for a managed primary, ModelFile and ModelPath were both the
snapshot directory, and staging keys were relative to it. Now ModelFile
is the snapshot, ModelPath is the models root above it, and keys keep the
full relative path. That spec is updated rather than accommodated, with
the reasoning recorded inline, because the old invariant is exactly what
made a sibling companion unreachable.

Assisted-by: Claude:opus-4.8 [Claude Code]

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

---------

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-07-19 12:01:36 +02:00
mudler's LocalAI [bot]
b19afb192a fix(distributed): backend discovery hid GPU-only backends behind the controller's capability (#10947)
* fix(backends): list backends runnable on worker nodes in distributed mode

GET /backends/available filtered the gallery against the system state of
the host serving the request. In a distributed deployment that host is the
controller, which typically has no GPU, while the GPUs live on worker
nodes. Any meta backend whose capabilities map lacks a "default" (or "cpu")
key was therefore dropped from the listing entirely — longcat-video,
vllm-omni, ltx-video, parakeet, edgetam and qwentts were invisible in the
UI even though installing them by name on a GPU worker worked fine.

Workers now report their own meta-backend capability at registration and
the controller persists it on the node row. The controller cannot derive
it: OS-dependent capabilities (metal, darwin-x86, nvidia-l4t) and the CUDA
runtime refinements are only observable on the worker. Nodes registered
before this field existed fall back to a coarse capability derived from
their GPU vendor and VRAM.

Backend discovery then evaluates compatibility as the union over healthy
backend nodes, so a backend runnable on any node is offered while one no
node can run stays hidden. Each remote capability is evaluated through a
capability-pinned system state, otherwise a forced capability on the
controller image (LOCALAI_FORCE_META_BACKEND_CAPABILITY or
/run/localai/capability) would silently override every worker's verdict.
With no registered nodes the listing is byte-for-byte what it was, so
single-node deployments are unaffected.

Also fixes the same-root-cause misclassification in /api/operations, which
used the capability-filtered listing to decide whether an operation was a
backend or a model install. A GPU-only backend installing on a worker is
still a backend operation on the controller, so that lookup is now
unfiltered.

Assisted-by: Claude:claude-opus-4-8 golangci-lint
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(backends): union worker capabilities in backend discovery

Implementation for the specs added in the previous commit, plus the two
remaining discovery endpoints.

Capability-filtered backend discovery evaluated compatibility against the
system state of the host serving the request. In a distributed deployment
that host is the controller, which typically has no GPU, while the GPUs
live on worker nodes. Any meta backend whose capabilities map lacks a
"default" (or "cpu") key was dropped entirely — longcat-video, vllm-omni,
ltx-video, parakeet, edgetam and qwentts were invisible in the UI even
though installing them by name on a GPU worker worked fine.

Workers now report their own meta-backend capability at registration and
the controller persists it on the node row. The controller cannot derive
it: OS-dependent capabilities (metal, darwin-x86, nvidia-l4t) and the CUDA
runtime refinements are only observable on the worker. Nodes registered
before this field existed fall back to a coarse capability derived from
their GPU vendor and VRAM.

Discovery then evaluates compatibility as the union over healthy backend
nodes, so a backend runnable on any node is offered while one no node can
run stays hidden. Each remote capability is evaluated through a
capability-pinned system state, otherwise a forced capability on the
controller image (LOCALAI_FORCE_META_BACKEND_CAPABILITY or
/run/localai/capability) would silently override every worker's verdict.
With no registered nodes the listing is byte-for-byte what it was, so
single-node deployments are unaffected.

Four surfaces shared this root cause and are all routed through the same
helper now:

  - GET /backends/available
  - GET /api/fine-tuning/backends
  - GET /api/quantization/backends
  - /api/operations backend-vs-model classification, which additionally
    had no reason to filter by capability at all: a GPU-only backend
    installing on a worker is still a backend operation on the
    controller, so that lookup is now unfiltered.

Assisted-by: Claude:claude-opus-4-8 golangci-lint
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

---------

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-07-19 07:53:46 +00:00
Richard Palethorpe
9c43b2da8f fix(model): make backend shutdown model-scoped (#10865)
Avoid holding the global loader lock across backend lifecycle waits and propagate forced shutdown through distributed workers. Track parallel requests with in-flight counters and reserve worker ports until process termination.

Add focused race tests and an authoritative FizzBee lifecycle model with a fail-closed conformance target.

Assisted-by: Codex:GPT-5 [FizzBee] [Ginkgo]

Signed-off-by: Richard Palethorpe <io@richiejp.com>
2026-07-19 08:43:17 +02:00
localai-org-maint-bot
279f5b8a93 fix(model-artifacts): load single-file HF snapshots from the file, not the directory (#10909)
fix(model-artifacts): load single-file HF snapshots from the file, not the dir

The managed Hugging Face artifact materializer (#10825) always pointed
backends at the snapshot *directory*
(.artifacts/huggingface/<key>/snapshot). For a single-file model
reference such as huggingface://nomic-ai/nomic-embed-text-v1.5-GGUF/nomic-embed-text-v1.5.f16.gguf,
the GGUF lives *inside* that directory, so llama.cpp was handed a
directory and failed with "gguf_init_from_reader: failed to read magic".
This has kept the tests-aio job red on master since the feature merged
(the embeddings e2e tests could not load text-embedding-ada-002).

Record the single file of a one-file snapshot as Resolved.PrimaryFile and
have ModelFileName() resolve to snapshot/<PrimaryFile> when it is set.
Multi-file snapshots (e.g. transformers repos consumed as a directory)
keep pointing at the snapshot directory. PrimaryFile is derived from the
resolved contents and is deliberately excluded from the artifact cache
key. estimateModelSizeBytes now derives the snapshot directory from the
cache key instead of ModelFileName(), so its manifest lookup is unaffected
by the file-vs-directory resolution.


Assisted-by: Claude:opus-4.8 [Claude Code]

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-07-17 22:42:50 +00:00
futurehua
d3ea65a112 refactor: replace Split in loops with more efficient SplitSeq (#10879)
Signed-off-by: futurehua <futurehua@outlook.com>
2026-07-17 22:07:16 +02:00
Nandana Dileep
ab7b58fc85 fix(watchdog): force-kill stuck-busy backends instead of deadlocking the loader (#10578)
When the watchdog's busy-killer decides a backend has been busy past the
busy timeout, it shuts it down via ModelLoader.ShutdownModel -> deleteProcess,
which grabs ml.mu and then waits for IsBusy() to clear BEFORE stopping the
process. But a backend that exceeds the busy timeout is, by definition,
stuck on an in-flight gRPC call, so the graceful wait never returns, ml.mu
is held forever, and every other ml.Load blocks — including the shared
opus backend load at the start of every realtime (WebRTC) session. New
realtime connections then hang at "Connected, waiting for session..."
whenever the watchdog is enabled, while logs repeatedly print the
watchdog's busy / "active connection" line.

Fix: add a force shutdown path (ShutdownModelForce / deleteProcess(s,
force=true)) that stops the process FIRST — dropping the stuck call's
gRPC connection and unblocking it — instead of waiting on it. Route the
watchdog's busy-killer and busy LRU / group / memory evictions through
the force path; keep the graceful wait for idle and user-initulated
unloads. Graceful/unforced kills are unchanged.

Regression test: the watchdog busy-killer uses ShutdownModelForce.

Fixes #10391


Assisted-by: opencode:glm-5.2 [opencode]

Signed-off-by: Nandana Dileep <110280757+nandanadileep@users.noreply.github.com>
2026-07-16 12:36:23 +00:00
LocalAI [bot]
8cec22c3b7 feat(vram): per-node VRAM allocation budget (LOCALAI_VRAM_BUDGET) (#10833)
* feat(vram): add vrambudget primitive for per-node VRAM caps

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(vram): apply default VRAM budget in xsysinfo aggregate getters

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(vram): wire LOCALAI_VRAM_BUDGET flag to xsysinfo default budget

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(vram): persist VRAM budget via runtime settings with live apply

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* test(vram): reset process-global VRAM budget after runtime-settings spec

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(vram): add VRAM budget field to Settings page

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(vram): store and enforce per-node VRAM budget in the node registry

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(vram): apply per-node VRAM budget in router hardware defaults

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(vram): report worker VRAM budget in node registration

The distributed worker now reports its operator-set VRAM budget string
(LOCALAI_VRAM_BUDGET) to the server on registration. The worker keeps
reporting RAW total/available VRAM and never sets the xsysinfo
process-global budget (that stays standalone-only); the server resolves
and enforces the budget uniformly (Task 6).

Also closes a Task 6 gap: on re-registration, a struct Updates zero-skips
an empty budget, so a worker that dropped LOCALAI_VRAM_BUDGET left the
stale cap in place. For non-admin-override nodes the budget columns are
now force-written (map Updates) even when empty, so removing the env var
clears the cap; admin overrides are preserved unchanged.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* style(vram): drop em dash from worker-clear comment

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(vram): add node VRAM budget admin endpoints

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(vram): add node VRAM budget control to the node UI

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(vram): expose set_node_vram_budget MCP admin tool

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* docs(vram): document LOCALAI_VRAM_BUDGET and node VRAM budget UI

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(vram): avoid double-applying VRAM budget in GetResourceAggregateInfo

The GPU-branch aggregate returned by GetResourceInfo is sourced from
GetGPUAggregateInfo, which already caps total/free/used against the
process-wide VRAM budget. GetResourceAggregateInfo then applied the
budget a second time. For an absolute budget this is idempotent, but for
a percentage budget b.Apply resolves the ceiling as a fraction of its
input total, so a second pass yields P*(P*T) instead of P*T and distorts
UsagePercent (read by the memory reclaimer in pkg/model/watchdog.go).

Remove the redundant second application so the budget is applied exactly
once, against the raw physical totals, upstream in GetGPUAggregateInfo.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(vram): implement SetNodeVRAMBudget on mcp assistant test stub

The LocalAIClient interface gained SetNodeVRAMBudget; the stubClient in
core/http/endpoints/mcp used by the assistant tests is a separate
implementer and needs the method too (broke golangci-lint typecheck and
both test jobs).

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

---------

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-07-15 09:58:45 +02:00
LocalAI [bot]
bcc41219f7 feat: materialize Hugging Face model artifacts (#10825)
* feat(config): add model artifact source contract

Assisted-by: Codex:GPT-5 [Codex]

* feat(downloader): add authenticated raw-byte progress

Assisted-by: Codex:GPT-5 [Codex]

* feat(huggingface): resolve immutable snapshot manifests

Assisted-by: Codex:GPT-5 [Codex]

* feat(models): add artifact storage primitives

Assisted-by: Codex:GPT-5 [Codex]

* feat(models): materialize pinned Hugging Face snapshots

Assisted-by: Codex:GPT-5 [Codex]

* feat(models): bind managed snapshots at runtime

Assisted-by: Codex:GPT-5 [Codex]

* feat(gallery): materialize model artifacts during install

Assisted-by: Codex:GPT-5 [Codex]

* feat(gallery): declare managed Hugging Face artifacts

Assisted-by: Codex:GPT-5 [Codex]

* feat(models): preload managed model artifacts

Assisted-by: Codex:GPT-5 [Codex]

* fix(gallery): retain shared artifact caches on delete

Assisted-by: Codex:GPT-5 [Codex]

* feat(models): report artifact acquisition progress

Assisted-by: Codex:GPT-5 [Codex]

* refactor(backends): load managed models from ModelFile

Assisted-by: Codex:GPT-5 [Codex]

* refactor(backends): load staged speech model snapshots

Assisted-by: Codex:GPT-5 [Codex]

* refactor(backends): use staged snapshots in engine backends

Assisted-by: Codex:GPT-5 [Codex]

* test(distributed): cover staged artifact snapshots

Assisted-by: Codex:GPT-5 [Codex]

* docs: explain managed model artifacts

Assisted-by: Codex:GPT-5 [Codex]

* docs: add product design context

Assisted-by: Codex:GPT-5 [Codex]

* feat(ui): show model artifact download progress

Assisted-by: Codex:GPT-5 [Codex]

* Eagerly materialize Hugging Face artifacts

Materialize HF-backed model references as managed GGUF artifacts during load, with lazy download retained only as fallback.

Assisted-by: Codex:GPT-5 [shell]

* Refactor HF
  downloads through a shared executor

Assisted-by: Codex:GPT-5 [shell]

* drop

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

---------

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-07-15 01:09:33 +02:00
LocalAI [bot]
4056283aa4 [voice] feat: add managed voice cloning profiles (#10799)
* feat(ui): add voice library workflow

Give administrators a production-ready flow to record or upload consented reference audio, manage reusable profiles, inspect API usage, discover compatible models, and hand a saved voice directly to text-to-speech.

Assisted-by: Codex:gpt-5

* feat(voice): add managed voice cloning profiles

Make reusable reference voices manageable through the admin API instead of requiring model-directory and YAML edits. Discover compatible installed and gallery models from server-side backend capabilities, retain explicit model configuration controls, and stage saved references for supported backends.

Expose profile management through REST and MCP, document backend-specific behavior, and cover the workflow from profile creation through real Qwen3-TTS synthesis. Harden the agent-job HTTP test against completion racing cancellation.

Assisted-by: Codex:gpt-5

---------

Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-07-13 09:54:46 +02:00
Richard Palethorpe
1f9fda7138 fix(backends): refuse foreign model loads in opus and local-store (#10769)
When a model config has no explicit backend, the model loader greedily
probes every installed backend and binds to the first Load that
succeeds. opus and local-store were the only in-tree backends with no
model artefact to validate, so they accepted anything — an LLM
installed after them could silently bind to the audio codec or the
vector store and then fail at inference with "unimplemented"
(see #9287).

opus now accepts only its own name (what the realtime WebRTC path
sends) or none. local-store namespaces are arbitrary (router caches,
biometrics, user-named stores), so core's StoreBackend now marks
genuine store loads with a store:// prefix on the gRPC model name and
the backend refuses names without it; core and backend ship from the
same release, so the convention upgrades in lockstep.

Also repair the bit-rotted 'make test-stores' bootstrap (the suite
never registered external backends, so BACKENDS_PATH was dead weight)
and add the Load-validation rule to the adding-backends checklist.

Related: #9287

Assisted-by: Claude:claude-fable-5 golangci-lint

Signed-off-by: Richard Palethorpe <io@richiejp.com>
2026-07-11 09:17:34 +02:00
LocalAI [bot]
97175f4b5a feat(model): debounce model loads after a failure to stop retry-storms (#10728)
A client that keeps polling a model whose load fails (e.g. a backend that
crashes deterministically on init) triggered a fresh backend start on
every request: request -> load -> crash in ~10s -> 500, repeat on the
next poll. Each attempt could leak GPU/CUDA state, and under
LOCALAI_SINGLE_ACTIVE_BACKEND it kept stealing the active slot from
healthy models. The existing loading-coalesce map only dedups
*concurrent* loads, so sequential polls were never covered.

Track load failures per modelID in ModelLoader. After a load fails,
refuse fresh load triggers for that model until a cooldown elapses,
returning a typed ModelLoadCooldownError that the HTTP layer maps to 503
with a Retry-After header. The cooldown grows exponentially per
consecutive failure (base, doubling, capped at 5m) and resets on a
successful load. The coalesced follower-retry of an in-flight burst
bypasses the gate, so a genuinely concurrent burst still gets its one
retry -- only new, independent triggers are refused, matching the
report's "refuse new load-triggers" wording.

Configurable via --model-load-failure-cooldown /
LOCALAI_MODEL_LOAD_FAILURE_COOLDOWN (default 10s, 0 disables), plumbed
through ApplicationConfig and applied unconditionally at startup.

Closes #10719


Assisted-by: Claude:claude-opus-4-8 [Claude Code]

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-07-07 20:55:24 +00:00
Tai An
2f33cc7bc4 fix(vram): report largest GGUF quant instead of whole HF repo for gallery size (#10700) (#10707)
* fix(vram): report largest GGUF quant, not whole repo, for HF gallery size (#10700)

Signed-off-by: Tai An <antai12232931@outlook.com>

* test(vram): cover multi-GGUF quant repo size estimation (#10700)

Signed-off-by: Tai An <antai12232931@outlook.com>

---------

Signed-off-by: Tai An <antai12232931@outlook.com>
Co-authored-by: Ettore Di Giacinto <mudler@users.noreply.github.com>
2026-07-07 11:50:27 +00:00
weifanglab
a6cf67cc6b refactor: use slices.Contains to simplify code (#10702)
Signed-off-by: weifanglab <weifanglab@outlook.com>
2026-07-06 19:33:28 +02:00
Richard Palethorpe
eb32cd9073 feat(realtime): eager blocking pipeline warm-up + /backend/load API (#10662)
Realtime sessions previously lazy-loaded each pipeline sub-model (VAD,
transcription, LLM, TTS) on first use, so every cold session paid a
per-request model-load stall and load errors only surfaced mid-stream.

Warm the whole pipeline eagerly and blockingly at session start
(including the voice-gate speaker-recognition model, which an enforced
gate blocks each utterance on; compaction's summary_model stays lazy
since it only runs off the response path):
- Add backend.PreloadModel / PreloadModelByName as the single load path
  for every modality (no transcription special-case; backend-omitted
  configs are deprecated).
- The realtime session blocks on Model.Warmup and returns a
  model_load_error to the client if any stage fails to load;
  updateSession warms in the background. Opt out per pipeline with
  pipeline.disable_warmup, exposed as a UI toggle via the
  config-metadata registry.

Add a LocalAI-native POST /backend/load (and /v1/backend/load) that
pre-loads a model -- expanding realtime pipelines into their sub-models
-- as the inverse of /backend/shutdown. There is one preload engine
(backend.PreloadStages): the realtime Warmup methods, /backend/load and
the --load-to-memory startup flag all use it, so --load-to-memory now
also expands pipeline models and records load-failure traces. Pipeline
sub-model alias resolution is likewise shared
(ModelConfigLoader.LoadResolvedModelConfig). Surface the endpoint
everywhere an admin manages models:
- MCP admin tool load_model (httpapi + inproc clients, safety/catalog
  prompts, catalog/dispatch tests).
- "Load into memory" action in the React models UI.
- Swagger regenerated; docs moved to the general backend-monitor page
  since it is not realtime-specific.

Fix a Traces UI crash ("json: unsupported value: -Inf"): audio-snippet
RMS/peak now floor at a finite dBFS, and backend-trace data is sanitized
to drop non-finite floats before marshaling. The sanitizer is
copy-on-write -- it runs on every RecordBackendTrace, so containers are
only re-allocated on the paths that actually changed.

Migrate core/http/openresponses_test.go onto the prebuilt mock-backend
the rest of the http suite already uses -- it was the last spec still
pointing at a real HuggingFace model, so it 404'd wherever no vision
backend was built -- and fix its item_reference specs to send the
spec's "id" field instead of "item_id", which the handler never
accepted.

Assisted-by: Claude:claude-opus-4-8 Claude Code

Signed-off-by: Richard Palethorpe <io@richiejp.com>
2026-07-03 18:00:37 +02:00
alaningtrump
80ec22945a refactor: use the built-in max/min to simplify the code (#10657)
Signed-off-by: alaningtrump <alaningtrump@outlook.com>
2026-07-03 17:59:26 +02:00
LocalAI [bot]
a4e6e01e4d fix(process): give backend workers a parent-death safety net (#10639)
* fix(grpc): self-terminate backend workers when LocalAI dies non-gracefully

Symptom: a backend model-worker subprocess (the per-model gRPC server LocalAI
spawns) can be orphaned and linger — holding VRAM and its listen port — if the
LocalAI process is killed non-gracefully (e.g. a supervisor's graceful-shutdown
grace period elapses and LocalAI is SIGKILLed) before its own teardown runs.

Root cause: LocalAI's graceful teardown (pkg/signals/handler.go installs the
SIGINT/SIGTERM handler; core/cli/run.go registers app.Shutdown ->
ModelLoader.StopAllGRPC -> process.Stop in pkg/model/process.go) only runs when
LocalAI receives a catchable signal and survives long enough to run its
handlers. Backends are spawned via github.com/mudler/go-processmanager v0.1.1,
whose getSysProcAttr() sets Setpgid:true (own process group, so the group can be
signalled) but never PR_SET_PDEATHSIG/Pdeathsig, and exposes no Config field or
option for a caller to inject/extend SysProcAttr. LocalAI fully delegates
spawning to that library (it never builds the exec.Cmd itself), so it cannot set
a kernel parent-death signal at the spawn site. If LocalAI is SIGKILLed, nothing
tells the backend to exit and it is reparented to init.

Fix: add a best-effort, backend-side safety net at the one shared choke point
every out-of-process Go backend routes through — grpc.StartServer / RunServer in
pkg/grpc. On startup it captures getppid() and polls; when the process is
reparented (getppid changes / becomes 1 — the standard POSIX signal the original
parent died) it logs and self-terminates. getppid() reparent detection is
portable (Linux + macOS), unlike Linux-only PR_SET_PDEATHSIG. Toggle via
LOCALAI_BACKEND_PARENT_WATCH (default on; off on Windows) and
LOCALAI_BACKEND_PARENT_WATCH_INTERVAL. This is strictly a backstop alongside the
existing graceful SIGTERM->grace->SIGKILL teardown, which is unchanged.

Scope/limitations: covers Go-based backends (everything using pkg/grpc). The
C++ backends (e.g. llama-cpp) and Python backends do not route through
pkg/grpc and are not covered by this mechanism — they would each need an
equivalent parent-death check (follow-up). The fully general fix is for
go-processmanager to expose SysProcAttr injection so LocalAI can set Pdeathsig
at spawn for every backend regardless of language (suggested upstream follow-up;
out of scope for this LocalAI-only PR).

Test: pkg/grpc/parentwatch_test.go builds a real test -> middle -> grandchild
process tree, lets the middle process exit to orphan the grandchild running the
real watchParentDeath, and asserts it detects the reparent and self-terminates.
Unix-only (build-tagged), runs in CI (Linux).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(process): extend parent-death backstop to C++ and Python backends

The Go parent-death watcher (pkg/grpc/parentwatch.go, commit 772b435d5)
only protects backends that route through pkg/grpc. C++ and Python
backends don't, so the originally-reported case — the llama.cpp gRPC
worker surviving a non-graceful LocalAI death — was still uncovered.

Extend the same best-effort backstop to both languages, reusing the
exact mechanism and semantics:

- capture getppid() at startup, skip if already orphaned (<=1)
- a background thread polls getppid() and self-exits on reparenting
  (getppid() != orig || == 1), portable across Linux/macOS, no-op on
  Windows
- same env vars: LOCALAI_BACKEND_PARENT_WATCH (default on; falsy
  false/0/no/off disable) and LOCALAI_BACKEND_PARENT_WATCH_INTERVAL
  (default 2s; accepts Go-style durations like 500ms/2s/1m)

C++: implemented in backend/cpp/llama-cpp (the reported, most-used C++
backend) as a dependency-free header parent_watch.h, wired into
grpc-server.cpp's main() and copied at build time via prepare.sh. C++
backends have no shared server scaffolding, so other C++ backends
(ds4, ik-llama-cpp, privacy-filter, ...) are not yet covered and would
each need the same one-line include+call as follow-ups.

Python: implemented once in the shared common/parent_watch.py and armed
from common/grpc_auth.py's get_auth_interceptors() — the single helper
every one of the 35 Python backends invokes while building its gRPC
server — so all Python backends (and future ones) are covered with no
per-backend edits and no duplicated implementation.

Tests (real process-tree reparent detection, mirroring the Go test):
- backend/cpp/llama-cpp/parent_watch_test.cpp (via run-unit-tests.sh)
- backend/python/common/parent_watch_test.py (python -m unittest)

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

---------

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
2026-07-02 19:16:48 +02:00
Adira
4ec39bb776 fix(watchdog): don't log optional Free() as an error when backend returns Unimplemented (#10602) (#10607)
* fix(watchdog): don't log optional Free() as an error when backend returns Unimplemented (#10602)

When the watchdog evicts a model, deleteProcess calls the backend's gRPC
Free() to release VRAM before stopping the process. Free is optional:
backends that don't override it -- the generated UnimplementedBackendServer
stub, many Python/external backends, or a federation proxy in distributed
mode -- return gRPC Unimplemented. That is expected, not a failure: VRAM is
reclaimed when the local process is stopped, or by the remote unloader for
remote backends. Logging it as "WARN Error freeing GPU resources" made a
benign, optional RPC look like a fault (the alarming line in #10602, seen
in distributed mode where the model is remote and Free hits a stub).

Treat gRPC Unimplemented from Free() as a no-op logged at Debug; genuine
failures still Warn. Free() is still attempted for every backend, so any
backend that does implement it is unaffected.

Add a reusable grpcerrors.IsUnimplemented helper following the package's
existing code-based detection idiom (prefer the typed status code, fall
back to the message across non-gRPC boundaries), with table tests.

Assisted-by: Claude:claude-opus-4-8 [Claude Code]

Signed-off-by: Adira Denis Muhando <dennisadira@gmail.com>

* fix(watchdog): log a non-Unimplemented Free() failure at error level

Per review: now that the expected gRPC Unimplemented case is split out and
logged at Debug, any remaining Free() error is a genuine failure to release
VRAM, so surface it at error level instead of warn.

Assisted-by: Claude:claude-opus-4-8 [Claude Code]

Signed-off-by: Adira Denis Muhando <dennisadira@gmail.com>

---------

Signed-off-by: Adira Denis Muhando <dennisadira@gmail.com>
2026-06-30 22:14:01 +02:00
LocalAI [bot]
fd8cebd0b3 fix(watchdog): persist UI-saved Check Interval across restarts (#10601) (#10605)
fix(watchdog): persist a UI-saved Check Interval across restarts (#10601)

The watchdog Check Interval saved via /api/settings reverted to 500ms on
every restart, while the idle/busy timeouts persisted correctly.

Root cause: NewApplicationConfig baseline-defaulted WatchDogInterval to
500ms, whereas the idle/busy timeouts default to 0. The startup loader
(loadRuntimeSettingsFromFile) applies a persisted runtime_settings.json
value only when the field is still at its zero default - its heuristic
for "this wasn't set by an env var". Because the interval was always
500ms at that point, the loader never read the persisted value back, so
the saved interval was silently discarded on each boot.

Fix: drop the non-zero baseline default so the interval behaves like the
sibling timeouts (0 = unset). The effective 500ms default is now supplied
at the watchdog layer: WithWatchdogInterval ignores a non-positive value
so DefaultWatchDogOptions' 500ms is preserved (and a 0 interval can never
turn the watchdog loop into a busy spin). Also mirror the interval in the
live config file watcher alongside idle/busy, and report the real 500ms
default (not the stale "2s") from ToRuntimeSettings.


Assisted-by: Claude:claude-opus-4-8 [Claude Code]

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-06-30 17:48:14 +02:00
pos-ei-don
2cee318fad fix(functions): avoid quadratic-time debug logging in CleanupLLMResult / ParseFunctionCall (#10592)
fix(functions): avoid quadratic-time debug logging in CleanupLLMResult/ParseFunctionCall

The streaming chat path (core/http/endpoints/openai/chat_stream_workers.go)
calls CleanupLLMResult / ParseFunctionCall once per delta chunk with the
*full accumulated* LLM result so far. Both functions xlog.Debug the entire
argument on entry and exit, so a single N-chunk stream emits roughly
chunk_size * N^2 bytes of debug output.

Under LOG_LEVEL=debug this was observed in a recent SGLang-via-LocalAI
session on a DGX Spark host (about 50K tokens, long streaming generation)
to drive container logs to ~96 GiB, which interacted with the streaming
hot loop on the same filesystem and contributed to a host-wide hard hang
once disk pressure built up. Workaround was setting LOG_LEVEL=info, but
the quadratic shape remains a foot-gun for anyone intentionally enabling
debug.

Replace the four result-content debug arguments with len(...) plus a
fixed-size head (200 bytes via a new truncForLog helper), bounding per-
call output to a constant. The debug signal stays useful: the first 200
chars are enough to identify which generation is in flight, and the
length lets you observe growth without paying for the payload itself.

No API change. No behaviour change for LOG_LEVEL != debug.

Signed-off-by: Poseidon <philipp.wacker@ibf-solutions.com>
Co-authored-by: Poseidon <philipp.wacker@ibf-solutions.com>
2026-06-30 09:16:03 +02:00
Richard Palethorpe
5d0c43ec6e feat(realtime): Semantic VAD EOU token (#10444)
* feat(realtime): EOU-driven semantic_vad turn detection

Add a `semantic_vad` turn-detection mode to the realtime API that feeds
the transcription model live and decides "the user finished speaking"
from the `<EOU>` end-of-utterance token rather than from silence alone.
When EOU fires the turn commits immediately (~0.3s); otherwise it falls
back to an eagerness-scaled silence threshold (low/med/high = 8/4/2s).

Plumbing, bottom to top:

- proto: `AudioTranscriptionLive` bidirectional RPC (config-first oneof,
  mono float PCM @16k, ready-ack / Unimplemented degrade signal) plus
  `TranscriptResult.eou` for the unary retranscribe gate.
- pkg/grpc: client/server/base/embed scaffolding for the bidi stream,
  modeled on AudioTransformStream; release stream conns on terminal Recv.
- parakeet-cpp: live transcription RPC with per-C-call engine locking
  (one live stream per turn, finalize+free at commit); bump parakeet.cpp
  to ABI v5 — incremental StreamingMel (no more quadratic per-feed mel
  recompute that delayed EOU on long turns) and the <EOU>/<EOB> split;
  strip the literal <EOU>/<EOB> from offline text and set Eou.
- core/backend: LiveTranscriptionSession wrapper + pipeline
  `turn_detection:` config block (type/eagerness/retranscribe).
- realtime: semantic_vad integration — live input captions streamed as
  transcription deltas while the user speaks, EOU-immediate commit with
  eagerness fallback, optional retranscribe gate (batch re-decode must
  also end in <EOU> to confirm), clause synthesis off the LLM token
  callback, and per-turn live-transcription / model_load telemetry.
- UI: show the realtime pipeline components as a vertical list.

Docs and tests included; opt-in via the pipeline YAML or per-session
`session.update`. Non-streaming STT backends degrade to silence-only.

Assisted-by: Claude Code:claude-opus-4-8 [Read] [Edit] [Write] [Bash]
Assisted-by: Claude Code:claude-fable-5 [Read] [Edit] [Bash]
Signed-off-by: Richard Palethorpe <io@richiejp.com>

* feat(realtime): explicit formally-verified state machines + parakeet streaming driver

The realtime API had several implicit state machines whose state was inferred
from scattered booleans, channels, and five separate mutexes, leaving
illegal/inconsistent states reachable. Make them explicit and keep the
implementation in step with a formal design; rework the parakeet streaming
backend along the same lines.

Realtime state machines (M1-M5). Each is a sealed sum-type State/Event/Effect
with a total, pure Next(state,event)->(state,[]effect) behind a single-writer
Coordinator:

  M1 conncoord    connection lifecycle: VAD toggle + once-only teardown
                  (replaces vadServerStarted + a `done` channel closed from
                  two sites).
  M2 turncoord    turn detection: collapses speechStarted and the live-stream
                  "turn open" flag into one state, so discardTurn can no longer
                  desync them and suppress the next onset.
  M3 respcoord    response coordination: serializes the dual-writer
                  start/cancel so at most one response is live; one
                  response.done per response.create.
  M4 compactcoord conversation compaction: single-flight (replaces the
                  `compacting atomic.Bool` CAS).
  M5 ttscoord     TTS pipeline: open->closing->closed, idempotent wait(),
                  rejects enqueue-after-close (was a silent drop).

The Coordinator/Sink/Next plumbing — only the sealed types and Next differed
per machine — is extracted once into core/http/endpoints/openai/coordinator as
a generic Coordinator[S,E,F]; each machine keeps its public API via type
aliases, so no sink, call-site, or test moved.

Hierarchy. session_lifecycle.fizz models M1 as the parent region with its
children (M2/M3/M4) as one statechart and asserts ChildrenDieWithParent (conn
torn => all children terminal, none start after teardown). respcoord and
compactcoord gain an absorbing Terminated state + Shutdown event; conncoord's
teardown drives the children terminal. This closes a compaction teardown gap: a
fire-and-forget compaction could outlive a torn session — compactionSink now
takes a session-scoped cancellable context + WaitGroup and joins the in-flight
summarize+evict on shutdown.

Formal verification. formal-verification/ holds one authoritative FizzBee spec
per machine plus the composition spec, each with an always-assertion and a
documented one-line edit that makes the checker fail (verified non-vacuous).
scripts/realtime-conformance.sh is fail-closed: all Go conformance suites under
-race AND a model-check of every .fizz spec; a missing FizzBee is a hard error
(only the loud REALTIME_CONFORMANCE_SKIP_FIZZBEE=1 bypasses it, never in CI).
FizzBee is pinned by sha256 and installed via scripts/install-fizzbee.sh into
.tools/ (gitignored). Wired as make test-realtime-conformance, a CI workflow,
and a pre-commit path filter. Go conformance tests are Ginkgo/Gomega (per the
repo's forbidigo lint): transition tables + fixed-seed property walks +
concurrent/-race specs, no rapid dependency. Design map:
docs/design/realtime-state-machines.md.

Parakeet streaming backend. The same treatment applied to the parakeet-cpp
streaming paths:
- AudioTranscriptionStream returns codes.Unimplemented for non-streaming models
  instead of decoding offline and emitting it as one delta + final. A client
  that asked for streaming learns the model cannot stream rather than receiving
  a batch result shaped like a stream. New grpcerrors.StreamTranscriptionUnsupported
  carries that signal; the HTTP /v1/audio/transcriptions stream path surfaces it
  as an SSE error event. Mirrors AudioTranscriptionLive, which already did this.
- utteranceBoundary (boundary.go): a single definition of the end-of-utterance
  latch, replacing three open-coded finalEou toggles. Modelled as a two-valued
  type so illegal states are unrepresentable.
- Shared decode driver (driver.go): streamFeedResult (one per-feed event) +
  feedChunk (hides the ABI v4 JSON vs text-only split) + feedSlices + flushTail.
  The feed loop is written once.
- AudioTranscriptionLive becomes a bidi adapter: it streams the per-feed
  {delta,eou,eob,words} the realtime turn detector consumes and a terminal
  FinalResult carrying only Text. Segments/duration/eou are offline-only and no
  longer produced (nor read) on the live path; liveTraceState drops the terminal
  eou and keeps the per-feed eou_events count.
- AudioTranscriptionStream + streamJSON merge into one driver-based function;
  streamSegmenter is generalized to the unified event with a text-only fallback
  that preserves the legacy (no-words) library's per-utterance segmentation.

Verified: build/vet/gofumpt clean, golangci-lint 0 issues, all coordinator and
parakeet packages under -race, the fail-closed conformance gate green, and
make test-realtime (12 e2e WS+WebRTC).

Assisted-by: Claude:claude-opus-4-8 [Claude Code]
Signed-off-by: Richard Palethorpe <io@richiejp.com>

---------

Signed-off-by: Richard Palethorpe <io@richiejp.com>
2026-06-30 09:01:22 +02:00
LocalAI [bot]
323b57a4bc fix(oci): retry layer downloads on transient network errors (#10579)
Installing large backend images (e.g. vLLM/vLLM-omni, several GiB) over
the Web UI could fail with "failed to download layer 0: unexpected EOF"
when a single connection to the registry dropped mid-stream. The whole
install then failed with no recovery, and since the download is not
resumable, retrying from the UI restarted from zero and usually hit the
same blip again - so users saw it as a consistent, size-correlated
failure (issue #10577).

The registry transport already retries manifest/digest fetches via
defaultRetryPredicate (GetImage/GetImageDigest), but the per-layer data
stream in DownloadOCIImageTar bypassed it entirely: layer.Compressed()
+ xio.Copy ran exactly once.

Extract the per-layer copy into downloadLayerToFile, which retries on the
same transient errors (unexpected EOF, EOF, EPIPE, ECONNRESET, connection
refused) with exponential backoff, truncating any partial data before
each retry. Non-retryable errors and context cancellation still fail
fast.


Assisted-by: Claude:claude-opus-4-8 [Claude Code]

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-06-28 21:21:08 +02:00
Nicholas Ciechanowski
be1ae9338b fix(distributed): missing agent NATS permissions (#10571)
Signed-off-by: Nicholas Ciechanowski <nicholas@ciech.anow.ski>
2026-06-28 12:58:13 +02:00
Nicholas Ciechanowski
c548150f99 fix(distributed): missing agent NATS permission (#10549)
Signed-off-by: Nicholas Ciechanowski <nicholas@ciech.anow.ski>
2026-06-27 21:10:12 +00:00
LocalAI [bot]
114eeaae81 feat(backends): make PreferDevelopmentBackends install the development image as primary (#10520)
When LOCALAI_PREFER_DEV_BACKENDS is set, install the -development image as the
primary backend URI (keeping the released image reachable as the first
fallback), instead of only reaching development as a download fallback when the
released image is missing. This lets an operator force backends built from the
development branch — e.g. to pick up a fix already on master before a release.

Threads PreferDevelopmentBackends through SystemState so InstallBackend can see
it, and reuses the same development-URI convention as the existing failure-path
fallback (released tag -> branch tag + dev suffix). The unexported developmentURI
helper is covered by a Ginkgo spec.

Assisted-by: Claude:claude-opus-4-8

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-06-26 07:42:45 +02:00
LocalAI [bot]
79783120dd fix(config): gate parallel-slot default on per-device VRAM too (#10485) (#10507)
The first #10485 fix (#10494) made the Blackwell physical-batch boost
per-device/context-aware, which neutralized the big compute-buffer OOM, but
the reporter's 2x16 GiB consumer Blackwell still OOM'd. Tracing the post-fix
log: the model now loads its weights, builds the main context and warms up
fine, and dies only on the *last* allocation — the MTP draft context's 800 MiB
KV cache on the tighter device.

#10411 changed only two defaults: the physical batch (now gated) and a
VRAM-scaled parallel-slot count. The KV cache is unified (n_ctx_seq == full
context proves slots share the budget, so parallel doesn't multiply KV), but
n_seq_max=4 still adds per-slot compute-graph / context-checkpoint / output
scratch. On a device packed ~99% by a 27B model spanning both cards, that
overhead is the few-hundred-MiB straw — which is why reverting #10411 (and only
#10411) restores a working load.

Gate the parallel-slot default on the same per-device headroom predicate as the
batch boost: when a large context already fills a single card
(largeContextForDevice), keep n_parallel=1. A user running one big-context model
that barely fits across two consumer GPUs is not serving four concurrent
tenants. Small contexts and large unified-memory devices (GB10) keep full
concurrency. Applied on both the single-host path and the distributed router.

Also make the auto-tuning visible and reversible (the debugging here needed
DEBUG logs and a git bisect):

  - Log the effective performance-relevant runtime options at INFO once per
    model load ("effective runtime tuning …": context, n_batch, n_gpu_layers,
    parallel, flash_attention, f16) so an admin can see what will run and pin or
    override any value in the model YAML.
  - LOCALAI_DISABLE_HARDWARE_DEFAULTS=true skips the hardware auto-tuning
    entirely (mirrors LOCALAI_DISABLE_GUESSING) for stock llama.cpp behavior.


Assisted-by: Claude:opus-4.8 [Claude Code]

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-06-25 15:48:23 +02:00
LocalAI [bot]
0d6de15ae9 fix(config): per-device VRAM headroom for Blackwell defaults (#10485) (#10494)
The hardware-tuned defaults from #10411 were measured on a GB10 / DGX Spark
(128 GiB unified memory) and over-provisioned multi-GPU consumer Blackwell
(e.g. 2x16 GiB RTX 50-series) into CUDA OOM during model init:

  - The Blackwell physical batch (512 -> 2048) sets both n_batch and n_ubatch.
    The compute buffer scales ~n_ubatch * n_ctx and is allocated PER DEVICE
    (it can't be split across GPUs), so a large context turns ub2048 into
    multi-GiB of scratch that must fit one 16 GiB card.
  - The VRAM-scaled parallel-slot default tiered off TotalAvailableVRAM(),
    which SUMS all GPUs (2x16 -> "32 GiB" -> 8 slots), but the allocations
    are per-device.

Make both decisions per-device and context-aware:

  - xsysinfo.MinPerGPUVRAM() reports the smallest device's VRAM; localGPU()
    uses it so the parallel tier and batch guard reason about one card.
  - PhysicalBatchForContext(gpu, ctx) raises the batch only when the extra
    compute buffer fits VRAM/4 at this model's context (16 GiB crosses over
    ~174k ctx, 32 GiB ~349k; GB10 reports system RAM so it still clears it).
  - Apply hardware defaults AFTER runBackendHooks in SetDefaults so the
    GGUF-guessed context is resolved before the batch decision.
  - The distributed router gates the node batch the same way.

Unified-memory devices (GB10, Apple) report system RAM as their single
device's VRAM, so they keep the prefill win.


Assisted-by: Claude:opus-4.8 [Claude Code]

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-06-25 00:07:48 +02:00
LocalAI [bot]
e5620989dd refactor(distributed): make in-flight tracking coverage a compile-time contract (#10476)
PR #10475 fixed SoundDetection in-flight tracking, but the underlying trap
remains: InFlightTrackingClient embedded the whole grpc.Backend interface
"for passthrough of untracked methods", so any newly added inference method
is silently satisfied by the embedded passthrough and never wrapped with
track(). That leaves onFirstComplete unfired and in-flight stuck at 1 - the
exact SoundDetection bug, waiting to recur for the next backend method.

Close the gap at the type level instead of relying on reviewers to remember:

- Split grpc.Backend into two composed sub-interfaces: InferenceBackend
  (methods that are one discrete inference call and must be tracked) and
  ControlBackend (control-plane calls plus the streaming constructors whose
  work spans the returned stream, safe to pass through). The classification
  now lives next to the interface it documents.
- InFlightTrackingClient embeds only grpc.ControlBackend and implements every
  InferenceBackend method explicitly, delegating to an inner InferenceBackend.
  A `var _ grpc.Backend = (*InFlightTrackingClient)(nil)` assertion makes the
  package fail to compile if any inference method is left unwrapped.

Now adding a method to InferenceBackend is a build error (at the assertion and
every call site: "does not implement grpc.Backend (missing method X)"), not a
silent runtime leak - and the obvious fix is to copy a neighbouring wrapper,
which calls track(). No runtime guard or reviewer vigilance required.

Pure refactor: the composed Backend interface is identical to the old flat
one, so all implementers and consumers are unaffected (verified with a full
`go build ./...`). Behaviour is unchanged; the existing nodes suite passes.


Assisted-by: Claude:claude-opus-4-8 [Claude Code]

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-06-24 11:08:29 +02:00
VJSai
64a4351f3a feat: send a LocalAI User-Agent on registry pulls (#10434)
LocalAI pulls models from OCI registries (via go-containerregistry), the
Ollama registry, and OCI blob stores (via oras), but every request went
out with the underlying library's generic User-Agent, so registry
operators had no way to attribute traffic to LocalAI.

Add an oci.UserAgent() helper that returns "LocalAI" (or
"LocalAI/<version>" when the binary is built with a version stamp via
internal.Version) and wire it into all three pull paths:

- pkg/oci/image.go: remote.WithUserAgent on the go-containerregistry
  image and digest requests
- pkg/oci/ollama.go: a User-Agent header on the Ollama manifest request
- pkg/oci/blob.go: a LocalAI User-Agent on the oras blob client. This
  mirrors oras' auth.DefaultClient (same retry.DefaultClient policy);
  only the advertised User-Agent changes.

Implements #6258.


Assisted-by: Claude:claude-opus-4-8 golangci-lint

Signed-off-by: Vijay Sai <vijaysaijnv@gmail.com>
2026-06-22 08:44:12 +02:00
LocalAI [bot]
600dafd20b feat(ced): sound-event classification backend (CED audio tagger) (#10425)
* feat(ced): sketch sound-classification backend (CED audio tagger)

Wires ced.cpp (CED, 527-class AudioSet sound-event tagger; baby cry,
footsteps, glass, alarms, dog bark) into LocalAI as a Go/purego backend.

SKETCH (backend skeleton real; core REST wiring + CI/gallery is a checklist
in DESIGN.md):
- backend/backend.proto: new SoundDetection rpc + SoundClass messages
  (run `make protogen-go` to regenerate pkg/grpc/proto).
- backend/go/ced: main.go (purego dlopen libced.so + ced_capi.h),
  goced.go (Ced gRPC backend: Load + SoundDetection), Makefile
  (clone-at-pin CED_VERSION, ggml static-PIC shared build), run.sh,
  package.sh, .gitignore.
- DESIGN.md: REST /v1/audio/classification wiring (handler/route/capability
  registration checklist), gallery/index + CI registration, and a scoping
  note for the realtime/websocket live-recognition path (sliding-window
  classify over the existing ws transport + voicegate; the ced C-API
  per-PCM entry point is already window-friendly).

Backend code does not compile until protogen-go regenerates the pb types
and a libced.so is built (Makefile clones+builds it).

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(ced): REST /v1/audio/classification endpoint + capability registration

Wires the ced sound-event classification backend (AudioSet audio tagger)
end to end through the REST surface, mirroring the transcription path.

- Handler: core/http/endpoints/openai/sound_classification.go parses the
  multipart audio upload, temp-files it, resolves the model config and
  calls the SoundDetection RPC; returns {model, detections[]} JSON.
- Backend wrapper: core/backend/sound_classification.go (ModelSoundDetection)
  loads the model and normalizes the proto response into schema types.
- Schema: core/schema/sound_classification.go (SoundClassificationResult).
- gRPC layer: SoundDetection wired through the LocalAI wrapper (interface,
  Backend client, Client, embed, server, base default) so the loader-typed
  client exposes the RPC; proto regenerated via make protogen-go.
- Route: POST /v1/audio/classification (+ /audio/classification alias) with
  the audio/multipart default-model middleware in routes/openai.go.
- Capability surfaces: swagger @Tags/@Router on the handler; FLAG_SOUND_
  CLASSIFICATION usecase flag + UsecaseSoundClassification + UsecaseInfoMap +
  GuessUsecases + ModalityGroups + GetAllModelConfigUsecases; meta usecase
  option; /api/instructions audio area updated; auth RouteFeatureRegistry +
  FeatureAudioClassification (APIFeatures, default ON) + FeatureMetas; UI
  usecaseFilters, capabilities.js CAP_SOUND_CLASSIFICATION, Models.jsx filter
  + i18n; docs page features/audio-classification.md + whats-new + crosslink.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(ced): realtime sound-event detection over the websocket API

When a realtime pipeline configures a sound-classification model, each
VAD-committed utterance (the same window the transcription path produces)
is also run through the CED sound-event classifier and the scored AudioSet
tags are emitted as a new server event. No new backend rpc is needed: the
SoundDetection gRPC method already exists on this branch.

- config: add Pipeline.SoundDetection (yaml/json sound_detection,omitempty)
  beside Transcription/VAD.
- realtime: add Model.SoundDetection(ctx, audio, topK, threshold) to the
  ModelInterface; implement it on wrappedModel and transcriptOnlyModel by
  calling backend.ModelSoundDetection with the session's sound-classification
  model config (mirrors how Transcribe dispatches). Load the optional config
  in newModel / newTranscriptionOnlyModel; nil config keeps it additive.
- types: add ConversationItemSoundDetectionEvent (item_id, content_index,
  detections[]{label,score,index}) with type conversation.item.sound_detection,
  its ServerEventType constant and MarshalJSON, mirroring the transcription
  completed event.
- realtime: add emitSoundDetection (unary path: classify the committed window,
  build the event, t.SendEvent) and wire it at the utterance-commit hook right
  after emitTranscription; gated on session.SoundDetectionEnabled (resolved
  from Pipeline.SoundDetection at session setup, defaults top_k=5, threshold=0).
  Its error is logged via xlog but never aborts the turn.
- test: Ginkgo specs for emitSoundDetection (tags emitted, empty detections,
  classifier error) plus a SoundDetection method on the fakeModel double.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(ced): implement SoundDetection in nodes backend test doubles

The SoundDetection method added to the grpc backend interface left two
test doubles (fakeBackendClient, fakeGRPCBackend) incomplete, so
core/services/nodes failed to compile under `go vet`/`go test` (go build
missed it: the doubles live in _test.go). Add the method to both,
mirroring their existing Detect mock. Repairs CI for the nodes package.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(ced): decouple realtime sound detection from VAD (sound-only sessions)

Sound-event detection must activate on sounds, not speech, so it no longer
runs through the voice VAD/transcription path. A sound-detection-only
pipeline (sound_detection set, no transcription/LLM) now:

- is accepted by prepareRealtimeConfig (sound_detection counts as a pipeline
  stage),
- builds a lightweight model via newSoundDetectionOnlyModel (no VAD/STT/LLM/TTS
  loaded), and
- defaults the session to turn_detection none (no VAD) with no transcription
  stage, so the client drives windowing via input_audio_buffer.commit
  (option A: client-side sliding window). The per-PCM C-API already supports
  arbitrary windows.

commitUtterance gains a sound-only branch: it emits the
conversation.item.sound_detection event (scored AudioSet tags) and stops -
no transcription, no LLM response. generateResponse is now guarded on a
transcription stage being present, so a sound-only turn never invokes the LLM.

Existing transcription/VAD sessions are unchanged (additive). Added a
commitUtterance sound-only Ginkgo spec asserting it emits the sound event and
neither transcribes nor generates a response. go vet + golangci-lint
(new-from-merge-base) clean; openai suite green.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(ced): register sound-classification backend in gallery + CI

Mechanical backend-image registration for the ced sound-event classifier,
mirroring the parakeet-cpp Go/purego backend everywhere it is wired up.

- .github/backend-matrix.yml: add the ced build matrix, field-for-field copies
  of the parakeet-cpp entries (cpu amd64/arm64, cublas cuda 12/13 amd64,
  l4t cuda-13 arm64, l4t-jetpack cuda-12 arm64, sycl f32/f16, vulkan
  amd64/arm64, rocm hipblas, and the metal darwin entry), changing only
  backend and tag-suffix. dockerfile stays ./backend/Dockerfile.golang.
- backend/index.yaml: add the &ced meta anchor (capabilities map per platform)
  plus ced-development and the per-arch image entries, each uri/mirror
  tag-suffix matching the matrix exactly. The model gallery (GGUF) entry is
  intentionally deferred pending the HuggingFace publish (TODO note inline).
- scripts/changed-backends.js: add an explicit item.backend === "ced" branch in
  inferBackendPath mapping to backend/go/ced/, same mechanism and ordering as
  the parakeet-cpp branch (before the generic golang fallthrough).
- .github/workflows/bump_deps.yaml: register mudler/ced.cpp -> CED_VERSION in
  backend/go/ced/Makefile so the daily bot bumps the pin.
- swagger/{docs.go,swagger.json,swagger.yaml}: regenerated via make swagger so
  the existing /v1/audio/classification annotations land in the generated spec.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(ced): server-side windowing for realtime sound detection (option B)

Adds an optional server-driven sliding-window classifier so a sound-only
realtime client only has to stream audio (no input_audio_buffer.commit):

- Pipeline.sound_detection_window_ms / sound_detection_hop_ms config knobs.
  When both > 0 on a sound-only session, the server classifies the last
  window of streamed audio every hop and emits a conversation.item.sound_
  detection event; the input buffer is trimmed to one window so a long
  stream stays bounded. When unset, the session stays client-driven
  (option A). Runs independent of VAD (sound events are not speech).
- handleSoundWindow (ticker) + classifySoundWindow (one tick, extracted so
  it is unit-testable) + writeWindowWAV, which declares the true
  InputSampleRate (NewWAVHeaderWithRate) so the classifier resamples
  correctly. Goroutine is started after toggleVAD and torn down with the
  session (close + wg.Wait).
- Register pipeline.sound_detection (+window_ms/hop_ms) in the config meta
  registry; the earlier realtime commit added pipeline.sound_detection
  without a registry entry, failing TestAllFieldsHaveRegistryEntries. This
  fixes that and covers the two new knobs.

Tests: classifySoundWindow emits an event + trims the buffer to one window,
no-ops on too-little audio; writeWindowWAV declares the given sample rate.
go build/vet + golangci-lint (new-from-merge-base) clean; config + openai
suites green.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(ced): add ced-base GGUF model gallery entries (f16 + q8_0)

The ced-base weights are now published at mudler/ced-base-gguf (Apache-2.0,
converted from mispeech/ced-base). Adds gallery/ced.yaml (backend: ced +
known_usecases: sound_classification) and two gallery/index.yaml entries
(ced-base-f16 default, ced-base-q8 smallest) with sha256-pinned files, and
removes the now-resolved TODO from backend/index.yaml.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(ced): add tiny/mini/small GGUF model gallery entries

Publishes the rest of the CED family (same architecture, metadata-driven port
verified end-to-end on ced-tiny) to mudler/ced-{tiny,mini,small}-gguf and adds
their f16 + q8_0 gallery entries:

  ced-tiny  (5.5M, edge/Pi-class)  f16 11MB / q8_0 6MB
  ced-mini  (9.6M)                 f16 19MB / q8_0 11MB
  ced-small (22M)                  f16 42MB / q8_0 23MB

All sha256-pinned. ced-base remains the accuracy default.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* chore(ced): point gallery entries at the consolidated mudler/ced-gguf repo

All CED quantizations (tiny/mini/small/base, f16/q8_0) now live in a single
HuggingFace repo, mudler/ced-gguf, instead of per-model repos. Repoint the 8
gallery model entries' urls + file uris accordingly. sha256 and filenames are
unchanged.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* chore(ced): bump CED_VERSION to the short-clip fix

Pin the ced backend to ced.cpp 99c6ed3, which fixes a crash on any clip
shorter than target_length (~10.11s): time_pos_embed was added at its full
63-frame grid instead of being sliced to the clip's actual time grid, tripping
ggml_can_repeat in ggml_add. Surfaced by the live realtime e2e (sub-10s
windows) and gated with a short-clip parity test upstream.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* docs(ced): list ced.cpp as a LocalAI-team engine + backend-guide directive

- README.md: add ced.cpp to the "native C/C++/GGML engines developed and
  maintained by the LocalAI project" table.
- docs/content/features/backends.md: add a Sound Classification backend
  category (sound-event classification / audio tagging) listing ced.cpp.
- .agents/adding-backends.md: add a "Documenting the backend" section and two
  verification-checklist items requiring new backends to be documented in the
  backends.md category list, and in-house native engines to be added to the
  README maintained-engines table. This directive was missing.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* chore(ced): repin CED_VERSION to the v0.1.0 release commit

ced.cpp history was squashed into a single release commit (tagged v0.1.0), so
the previous pin (99c6ed3) no longer exists upstream. Pin to c04ac14, the
v0.1.0 release commit, so the backend builds against a commit that exists.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(ced): silence gosec G304/G103 + govet unsafeptr on audited paths

- sound_classification.go: os.Create(dst) where dst = temp dir + path.Base of
  the upload (no traversal). #nosec G304, matching the depth-anything-cpp handler.
- goced.go: reading a NUL-terminated C string from a libced-owned buffer.
  #nosec G103 (gosec) + //nolint:govet (golangci-lint's unsafeptr check), since
  the uintptr is a C-owned malloc'd buffer, not Go-GC memory.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

---------

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-06-22 01:00:28 +02:00
Leoy
b50b1fe418 feat(watchdog): add size-aware LRU eviction mode (#9527)
* feat(watchdog): add size-aware LRU eviction mode

When the model count hits the LRU limit or the memory reclaimer fires,
evict the largest model by on-disk file size first rather than the
least-recently-used one.  For GGUF models the file size is a reliable
proxy for GPU/RAM footprint, so evicting the largest candidate maximises
freed memory per eviction round while keeping small utility models
(embeddings, classifiers, rerankers) resident.

Changes:
- `pkg/model/watchdog.go`: add `sizeAwareEviction` flag and
  `modelSizes map[string]int64` to `WatchDog`; sort candidates by
  `sizeBytes` desc (LRU time as tiebreaker) when the flag is set;
  add `RegisterModelSize`, `SetSizeAwareEviction`, `GetSizeAwareEviction`
- `pkg/model/watchdog_options.go`: add `WithSizeAwareEviction` option
- `pkg/model/initializers.go`: stat model file after load and call
  `RegisterModelSize` so size data is available before the first eviction
- `core/config/application_config.go`, `runtime_settings.go`: add
  `SizeAwareEviction` field and `WithSizeAwareEviction` app option;
  expose via `ToRuntimeSettings` / `ApplyRuntimeSettings` for the
  `POST /api/settings` live-reload path
- `core/cli/run.go`: add `--size-aware-eviction` flag /
  `LOCALAI_SIZE_AWARE_EVICTION` env var
- `core/application/startup.go`, `watchdog.go`: wire the new option
  through to `NewWatchDog`
- `pkg/model/watchdog_test.go`: 5 new specs — option enable, dynamic
  toggle, largest-first ordering, equal-size LRU tiebreaker, no-size
  fallback to LRU, and size-map cleanup on eviction

Closes #9375

Signed-off-by: supermario_leo <leo.stack@outlook.com>

* refactor(watchdog): use vram estimation scaffolding for model size

Replace the brittle os.Stat(modelFile) approach with a proper call to
pkg/vram, which handles multi-file models (DownloadFiles, MMProj) and
all weight file types, not just single GGUF files.

- Add estimateModelSizeBytes() in core/backend/options.go that collects
  all weight file URIs from the model config, resolves them to file://
  URIs, and calls vram.Estimate() with the shared DefaultCachedSizeResolver
  (15-min TTL cache avoids redundant stat calls on repeated loads)
- Thread the result through via a new WithModelSizeBytes() loader option
- In initializers.go, consume the pre-computed size instead of calling
  os.Stat; if no size was supplied (e.g. for external/router-dispatched
  models) the registration is simply skipped

Signed-off-by: supermario_leo <leo.stack@outlook.com>

* refactor(watchdog): use EstimateModel with HF fallback for size estimation

Switch estimateModelSizeBytes from calling vram.Estimate directly to the
unified vram.EstimateModel entry point, which adds automatic fallbacks:
file-based GGUF metadata → HF API → size string.

Also extract the HuggingFace repo ID from model URIs (huggingface://,
hf://, https://huggingface.co/ and org/model short-form) and pass it
as ModelEstimateInput.HFRepo, so models not yet downloaded locally can
still get a size estimate via the HF API.

Addresses @mudler's review feedback: "better to rely on EstimateModel
and pass by the HF URL of the model extracted from the URI".

Signed-off-by: supermario_leo <leo.stack@outlook.com>

* feat(webui): add Size-Aware Eviction toggle to settings page

The size-aware eviction setting was wired through the CLI flag and the
RuntimeSettings live-reload path (POST /api/settings) but had no handle
on the React settings page, so it could not be toggled from the UI.

Add a Size-Aware Eviction toggle to the Watchdog section, next to the
existing Force Eviction When Busy / LRU eviction handles. The settings
page loads and saves the whole RuntimeSettings object, so the new
size_aware_eviction key is picked up with no extra plumbing.

Addresses @mudler's review feedback: the application config setting
should land on the same UI settings page as the other handles.

Signed-off-by: supermario_leo <leo.stack@outlook.com>

---------

Signed-off-by: supermario_leo <leo.stack@outlook.com>
2026-06-21 17:17:04 +02:00