Commit Graph
28 Commits
Author SHA1 Message Date
2fa36e7147 feat(parakeet-cpp): speaker diarization, sound detection and live scene events (#12335)
* feat(parakeet-cpp): load diarization and CED models and companions

Repin PARAKEET_VERSION to parakeet.cpp PR #75's head, which adds
parakeet_capi_model_kind (ABI v8). Bind the new diarization, sound
event and combined scene stream C symbols through the same
purego.Dlsym probe pattern already used for the batched JSON entry
point, so the backend still loads against an older libparakeet.so.

Load now classifies the loaded GGUF by role (ASR, diarization or
sound) via parakeet_capi_model_kind and can load up to two companion
models from Options[] (asr_model:, diarization_model:, sound_model:,
paths resolved against opts.ModelPath), verifying each companion's
kind and freeing every context opened so far on any failure. Free
releases the primary and every companion. AudioTranscription now
names the loaded role when it is not ASR instead of a generic model
not loaded error. The dynamic batcher starts only when an ASR context
ends up loaded, primary or companion.

This is groundwork only: the Diarize and SoundDetection RPCs and the
live scene stream that actually use these new roles land in later
commits.

Assisted-by: Claude:claude-sonnet-5 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(parakeet-cpp): reset role fields on a failed companion load

loadRoles' freeLoaded only released the C contexts it had opened; it
left ctxPtr/diarCtx/tagCtx and companions pointing at those now-freed
contexts, so a later Free() on the same instance would double-free.
Zero all four alongside the CppFree calls.

Also route AudioTranscriptionStream and AudioTranscriptionLive through
notASRError when ctxPtr is unset but a diarization or sound model is
loaded, matching AudioTranscription: both used to return the generic
model-not-loaded error instead of naming the loaded role.

Assisted-by: Claude:claude-sonnet-5 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(parakeet-cpp): add speaker diarization

Implement the Diarize RPC for the parakeet-cpp Go backend, wired to
Nemotron-3-Diarization through libparakeet.so's diarization C-API.

Plain diarization uses parakeet_capi_diarize_pcm; when include_text is
set and an ASR companion is loaded, parakeet_capi_transcribe_and_
diarize_json fills each segment's text instead. Speaker labels are the
decimal index, or "unknown" for -1 (no diarized speaker overlaps).
min_duration_off merges same-speaker segments across a short gap
before min_duration_on drops the segments still too short, then ids
are renumbered. num_speakers/min_speakers/max_speakers/clustering_
threshold have no Sortformer equivalent and are logged at debug
instead of rejected.

Verified against the real Nemotron-3-Diarization + parakeet-tdt_ctc-
110m checkpoints on the two_speakers.wav fixture: correct A-B-A-B
speaker segmentation and matching speaker-attributed transcripts.

Assisted-by: Claude:claude-sonnet-5 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(parakeet-cpp): add sound event detection

Wire the SoundDetection RPC to the CED tagger context (p.tagCtx)
loaded by Task 1's role classification. It runs the whole clip
through a one-shot parakeet_capi_sound_stream_* session (window
10s, hop 10s, top_k set to the tagger's class count so every
drained window carries a full score list), averages each class's
score across the drained windows, sorts descending, then applies
the request's threshold and top_k (0 keeps every class).

No tagCtx returns FailedPrecondition; a libparakeet.so missing the
sound_stream symbols returns Unimplemented. Every C call runs under
engineMu, and the stream is always freed, even when a feed or drain
call fails partway through.

Verified against a real ced-tiny-q8_0.gguf on the rooster.wav demo
clip: "Chicken, rooster" tops the list at score 0.91.

Assisted-by: Claude:claude-sonnet-5 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(parakeet-cpp): cancel sound detection mid-feed, shrink the lock

SoundDetection now checks ctx before each 10 s feed slice (mirroring
driver.go's feedSlices) and returns Canceled if the caller gave up,
so a long clip can be interrupted instead of feeding to completion
regardless. The stream is still freed on every path, cancellation
included.

Also narrow engineMu to the C calls: the drained JSON document is
now decoded after the lock is released, splitting soundStreamScores
into a locked soundStreamDrain (opts, begin, feed, drain, free) and
an unlocked json.Unmarshal.

Assisted-by: Claude:claude-sonnet-5 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(parakeet-cpp): stream speaker and sound events during live transcription

Add two additive proto fields, LiveSpeakerSegment and LiveSoundEvent,
repeated on TranscriptLiveResponse. When a diarization or sound
companion model is loaded, AudioTranscriptionLive now runs a no-ASR
scene stream (parakeet_capi_scene_stream_begin) beside the ASR
streaming session, feeding it the same PCM slices and forwarding any
closed speaker or sound events alongside the matching ASR delta, or
on their own when a slice has no ASR output.

The scene stream is freed and reopened on a mid-stream Config reset,
flushed with is_last before the closing FinalResult, and degrades
gracefully (a warning, not an error) when begin or a later feed call
fails, so live transcription keeps working ASR-only. Existing live
behavior is unchanged when no companion is configured, and no scene
C call is made in that case.

Assisted-by: Claude:claude-sonnet-5 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(parakeet-cpp): keep scene events off the ASR critical path in live

Emit each slice's ASR result right after the ASR feed, before the
scene feed for that slice runs, so a companion diarization/sound
model never adds scene compute latency in front of the delta or
<EOU> that drives realtime turn detection. Closed speakers/sounds go
out afterward as their own response, so a slice with both now
produces two responses, ASR first. The live feed log line now
reports ASR and scene wall time separately.

Re-check the diarization/sound contexts a scene stream was begun
with against the live contexts before every feed, under the same
lock: Free() can race between an ASR feed and the matching scene
feed and free the model the stream borrows. A mismatch now returns
without touching the C side. Freeing the stream itself stays
unconditional; the scene stream's destructor only releases its own
buffers and never touches the borrowed contexts.

Also recover a panicking stub inside the live test goroutine instead
of crashing the test binary, and reset the live decode-lag tracker on
a mid-stream config reset, matching what its own comment already
promised.

Assisted-by: Claude:claude-sonnet-5 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(realtime): surface live speaker and sound events

Carry the backend's closed speaker segments and sound events
(TranscriptLiveResponse fields 7/8) through LiveTranscriptionEvent
as LiveSpeakerSegment/LiveSoundEvent (nanoseconds mapped to
seconds), and forward them from the semantic_vad live path.

Each speaker segment emits
conversation.item.input_audio_transcription.segment with speaker,
start, end and empty text under the turn's item id. Each sound
event emits conversation.item.sound_detection with one tag
(label, score = peak, index) and the event's new optional
start/end seconds fields, omitted when unset so the existing
unary/windowed sound-detection path is unaffected.

Assisted-by: Claude:claude-sonnet-5 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(realtime): keep start/end on a zero-second transcription segment

ConversationItemInputAudioTranscriptionSegmentEvent.Start/End used
omitempty, so a speaker segment starting at 0.0s dropped its
"start" key. Nothing emitted this event before the live scene-event
path, so drop omitempty: the segment always carries real times.

Assisted-by: Claude:claude-sonnet-5 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* chore(gallery): add parakeet-cpp diarization, CED and realtime scene models

Add gallery entries for the new parakeet-cpp capabilities: standalone
Nemotron-3-Diarization, the same paired with the Parakeet TDT+CTC
110M ASR model for speaker-attributed text, CED-Tiny and CED-Base
sound classifiers, and a realtime scene bundle combining the
streaming EOU ASR model with diarization and sound companions.

SHA256 taken from the Hub API; licenses from each model card
(openmdw-1.1 for Nemotron-3-Diarization, apache-2.0 for CED,
cc-by-4.0 for the Parakeet ASR models).

Assisted-by: Claude:claude-sonnet-5 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* docs: document parakeet-cpp diarization, sound detection and live scene events

Cover the new parakeet-cpp capabilities across the feature pages:
Nemotron-3-Diarization as a diarization backend (with and without
speaker text, the ignored speaker-count hints, the Sortformer
voice-like-sound quirk), CED as a sound classification backend, the
asr_model/diarization_model/sound_model/diarization_latency companion
options, and the realtime live speaker/sound events (event shapes,
the speech-turn-only limitation, and using this or
pipeline.sound_detection but not both).

Assisted-by: Claude:claude-sonnet-5 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(gallery): correct the realtime-scene license and wording nits

parakeet-cpp-realtime-scene mistakenly copied cc-by-4.0 from the
existing realtime_eou_120m-v1 entry; the model card lists the NVIDIA
open model license instead. Switch to the gallery's usual spelling
for that license and keep the diarization/CED licenses called out in
the description.

Also: audio-diarization.md now says getting per-segment text needs
both an asr_model companion and include_text=true on the request, and
audio-to-text.md's option table reads "Use on" (a pairing the loader
does not enforce) instead of "Allowed on".

Assisted-by: Claude:claude-sonnet-5 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(parakeet-cpp): reject a companion role that duplicates the primary's

loadRoles let a companion option (asr_model:/diarization_model:/
sound_model:) assign into a role field the primary already occupied,
for example asr_model: on an already-ASR primary. The companion's
context silently overwrote ctxPtr/diarCtx/tagCtx, and Free() only
walks those three fields, so the original primary context was never
freed again.

Reject a companion whose role the primary already holds before its
GGUF is even loaded, freeing everything loadRoles opened so far, the
same way a wrong-kind companion is already rejected.

Also warn, rather than silently fall through, when
parakeet_capi_model_kind reports PARAKEET_MODEL_KIND_NONE for a
successfully loaded primary; the primary is still treated as ASR,
matching today's behavior.

Assisted-by: Claude:claude-sonnet-5 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(parakeet-cpp): cap live scene sound score retention

sceneBegin started the live diarization/sound companion stream with
the C API's default sound options, whose top_k keeps 5 scores per
window forever until drained. The live scene path never drains sound
scores (only the offline SoundDetection RPC does, with its own fresh
stream), so this window queue on the C side grew for the whole
session's lifetime.

Set opts.Sound.TopK = 0 before starting the scene stream: this
disables score retention while leaving sound event detection (onset/
offset), which the live path actually consumes, unaffected.

Assisted-by: Claude:claude-sonnet-5 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(parakeet-cpp): merge diarization segments per speaker, harden Diarize

mergeCloseSegments only compared neighbors in the single start-sorted
segment list, so two same-speaker segments never merged once another
speaker's turn fell between them (A, B, A): the short B segment broke
the adjacency the merge relied on. Group segments by speaker first,
merge within each speaker's own start-ordered run, then re-sort the
result by start so interleaved speakers come back out in timeline
order.

Also harden Diarize's entry points the same way streamFeedDoc/
sceneFeed already are: diarizeCall re-checks p.diarCtx (and, on the
include_text path, p.ctxPtr) under engineMu right before the C call,
so a Free() racing between Diarize's own checks and the lock can no
longer reach the C side with a freed context. When the include_text
call returns NULL, last_error is now read from both contexts and
whichever came back non-empty is reported, since either side of the
pairing can be the one that failed. A WAV decode failure is reported
as InvalidArgument instead of an unwrapped/untyped error.

Assisted-by: Claude:claude-sonnet-5 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(parakeet-cpp): harden SoundDetection's engine checks

soundStreamDrain ran every C call under engineMu but never re-checked
p.tagCtx there, so a Free() racing between SoundDetection's own
tagCtx==0 check and this lock could still reach the C side with a
freed context. Re-check p.tagCtx under the lock and return
ModelNotLoaded when it was cleared, mirroring diarizeCall's own
re-check. A WAV decode failure is now reported as InvalidArgument
instead of an unwrapped/untyped error.

Assisted-by: Claude:claude-sonnet-5 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* test(parakeet-cpp): cover a mid-session scene feed failure

feedSlicesScene already degrades gracefully when a scene feed call
fails mid-session: it frees the broken stream and carries the ASR-only
session forward. Add a spec covering that path end to end: the scene
stream is freed exactly once, later audio slices still produce ASR
responses, and no speaker/sound events appear before or after the
failure.

Assisted-by: Claude:claude-sonnet-5 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* docs: fix the parakeet-cpp companion role table and realtime scene docs

audio-to-text.md's companion option table read "Use on" with a note
that the loader did not enforce the pairing; it now rejects a
companion whose role duplicates the primary's, so restore the
"Allowed on" wording and describe the real enforcement.

openai-realtime.md's live speaker/sound section claimed a mid-stream
session.update resets the companion stream and that it flushes on
session close; neither happens, since the realtime core opens one
live stream (and so one scene stream) per speech turn and closes it
at that turn's commit, with no mid-stream Config in between. Document
that lifecycle instead, state precisely that start/end are seconds
from the start of the turn's own audio, and note that the diarization
model starts a fresh session every turn, so a speaker index is only
meaningful within one turn. The example sound tag ("Rooster", index
17) did not match any real CED label; index 17 in ced-tiny-q8_0.gguf
is "Baby laughter". Replaced with "Chicken, rooster" at its real
index, 99.

Assisted-by: Claude:claude-sonnet-5 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(parakeet-cpp): use CED's real index for Chicken, rooster

The scene feed comment and the live test's canned document gave
"Chicken, rooster" index 365. In CED's AudioSet label list it is 99,
which is also what the realtime docs show.

Assisted-by: Claude:claude-opus-5-5 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(realtime): call the test event accessor

The scene-event tests range over a method instead of its returned slice.
Call the synchronized accessor so the OpenAI test package compiles.

Assisted-by: Codex:gpt-6
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* chore(parakeet-cpp): pin parakeet.cpp master with sound events

mudler/parakeet.cpp#75 (sound events, scene stream, model kinds) and
#74 (the missing <algorithm> include that broke the image builds) are
on master now. Pin 6dea76a instead of the #75 PR head, and update the
header comment the bump bot reads.

Assisted-by: Claude:claude-opus-5-5 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* chore(parakeet-cpp): pin parakeet.cpp with ced.cpp on main

parakeet.cpp #76 moved its ced.cpp submodule from the head of
localai-org/ced.cpp#3 (a branch-only commit) to ced.cpp main, where
#3 landed with an identical tree. Pin 623a968 so the image builds no
longer depend on that branch.

Assisted-by: Claude:claude-opus-5-5 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(transcription): carry speaker labels on words and streamed segments

A diarizing backend could label transcript segments, but two paths
dropped the label: TranscriptWord had no speaker field, so live
transcription words and word-level timestamps could not carry one, and
the stream=true transcript.text.done event left the speaker out of
its segments.

TranscriptWord gains an optional speaker (proto field 4, additive).
It flows through the live event and result mapping, the JSON word
output of the endpoint and the CLI, and transcript.text.done now
includes a segment's speaker when there is one. Empty labels are
omitted, so responses without diarization are unchanged.

Assisted-by: Claude:claude-opus-5-5 [Claude Code]
(cherry picked from commit 2f0049f979)
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(importers): detect the parakeet.cpp diarization GGUF

The Nemotron-3-Diarization GGUFs are published in
mudler/parakeet-cpp-gguf as nemotron-3-diarization-<quant>.gguf. The
parakeet-cpp importer did not recognise that name, so a direct
`local-ai models import` of the file fell through to another importer.

A direct URL to the file now imports with the diarization usecase. A
repo import still picks ASR weights when the repo also ships the
diarization model, and falls back to the diarization weights only
when there are no others.

Ported from #12323.

Assisted-by: Claude:claude-opus-5-5 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(config): advertise diarization and sound detection for parakeet-cpp

The capability table listed parakeet-cpp as transcription only, though
the backend now answers Diarize (Nemotron-3-Diarization) and
SoundDetection (CED) depending on the model kind it loads.

Assisted-by: Claude:claude-opus-5-5 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(parakeet-cpp): label transcript segments with the diarization companion

A diarization_model companion only fed live speaker events and
Diarize; /v1/audio/transcriptions ignored it.

With the companion attached and diarize=true (the OpenAI endpoint's
default), unary transcription now labels each segment with its
speaker and splits segments at speaker turns; with word timestamps
each word carries its speaker. The stream=true final result labels
each utterance with the speaker who said most of it. Both use the
checkpoint's own diarization over the whole clip, as NeMo's diarize()
does. Words take the speaker whose segments overlap them most, or the
nearest segment within 0.5 s, the same rule as parakeet.cpp's
speaker-attributed ASR.

Docs: the diarization_model row and a paragraph on transcript
speakers; Nemotron-3-Diarization handles up to 8 speakers.

Ported from #12323.

Assisted-by: Claude:claude-opus-5-5 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(realtime): speaker segments from committed-turn transcription

Speaker events reached a realtime session only from the live
semantic_vad path, which needs a cache-aware streaming transcription
model. Committed-turn transcription (server_vad, or any offline
model) always asked the backend for diarize=false and dropped the
segments' speakers.

pipeline.diarization (off by default) asks the transcription model for
speaker labels on each committed turn and emits every labelled segment
as a conversation.item.input_audio_transcription.segment event, with
its text, before the turn's completed event. It is opt-in because some
backends fail a diarization request they cannot serve.

Assisted-by: Claude:claude-opus-5-5 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(gallery): add parakeet-cpp-realtime-scene-tdt

parakeet-cpp-realtime-scene pairs the streaming EOU model with the
diarization and CED companions; its speaker and sound events need a
cache-aware streaming model. This entry does the same with Parakeet
TDT 0.6B v3 (multilingual, offline) for realtime under server_vad:
set it as both transcription and sound_detection and turn on
pipeline.diarization, and each committed turn gets speaker segments
and sound tags from one parakeet-cpp backend.

Files and sha256 match the Hub and are shared with the existing TDT v3,
diarization and CED-Tiny entries. A real-model spec checks the
combination on a clip with two speakers and a rooster: A-B-A-B speaker
turns, and "Chicken, rooster" among the sound tags. The test loader
now binds the sound entry points like main.go.

Assisted-by: Claude:claude-opus-5-5 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(gallery): add CED-Base variants of the parakeet-cpp scene models

parakeet-cpp-realtime-scene and parakeet-cpp-realtime-scene-tdt ship
with CED-Tiny. The -base variants use CED-Base (86M), which tags sounds
more confidently (on the rooster clip "Crowing" 0.65 against 0.49 for
Tiny).

Measured on CPU over a 37 s clip: the live diarization + sound stream
runs at 0.125 of real time with CED-Base against 0.103 with CED-Tiny,
because diarization dominates; sound detection per committed turn costs
0.031 against 0.005. The realtime docs list both and note that any CED
size works as sound_model.

Files and sha256 match the Hub and are shared with the existing
parakeet-cpp-ced-base entry. The TDT variant passes the real-model
scene spec with CED-Base (A-B-A-B speakers, "Chicken, rooster" found).

Assisted-by: Claude:claude-opus-5-5 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(config): register pipeline.diarization in the config metadata

TestAllFieldsHaveRegistryEntries fails on the branch because the new
pipeline.diarization field has no registry entry. Add one so the model
editor shows it as a toggle next to the sound detection options.

Assisted-by: Claude:claude-sonnet-5-5 [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>
Co-authored-by: localai-org-maint-bot <306269227+localai-org-maint-bot@users.noreply.github.com>
2026-09-29 23:58:17 +02:00
localai-org-maint-botandmudler fc6df9efc3 chore: ⬆️ Update mudler/parakeet.cpp to 2bf88954dc628b32835734e2e9159550a75a1dc6 (#12291)
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mudler's LocalAI [bot]andmudler ea60f62d66 chore: ⬆️ Update mudler/parakeet.cpp to e75de9b6b9b688fd293aa22f7e27aa724ea286f8 (#11592)
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fieryWaters 1ef10721c8 fix(parakeet-cpp): enable Metal in macOS builds (#11492)
Forward BUILD_TYPE=metal to PARAKEET_GGML_METAL so macOS backend artifacts include Metal support.

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2026-08-13 10:47:27 +02:00
mudler's LocalAI [bot]andmudler 052ccb5e00 chore: ⬆️ Update mudler/parakeet.cpp to 1bfbebfaaf493866f49597cd3b7901959d395c60 (#11209)
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550545c03a chore: ⬆️ Update mudler/parakeet.cpp to e747acdaee69b916cef62263ae5f718bda9ff3f3 (#11181)
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mudler's LocalAI [bot]andmudler 366db11c59 chore: ⬆️ Update mudler/parakeet.cpp to 3e1ddd8455ceb9bfae564f84db24ba068b00c56e (#11150)
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2026-07-28 09:25:52 +02:00
mudler's LocalAI [bot]andmudler 78775c77d8 chore: ⬆️ Update mudler/parakeet.cpp to 1da853421de9710cbe894a0110711de5a0516486 (#10899)
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LocalAI [bot]andmudler 9acca54b25 chore: ⬆️ Update mudler/parakeet.cpp to e8acc6172a94e20a952cf1843decace5d771a94b (#10629)
⬆️ Update mudler/parakeet.cpp

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2026-07-02 09:47:41 +02:00
LocalAI [bot]andmudler 2c96c2d08e chore: ⬆️ Update mudler/parakeet.cpp to f469a57270a1cc4554acb15febf60e56619673b9 (#10530)
⬆️ Update mudler/parakeet.cpp

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2026-06-27 00:50:51 +02:00
LocalAI [bot]andEttore Di Giacinto c678530cf0 fix(backends): darwin/metal support across purego Go backends (#10481)
* fix(parakeet-cpp): darwin/metal support (libparakeet.dylib + DYLD path)

The parakeet-cpp backend had no macOS support and panicked at startup on
Apple/Metal nodes when purego.Dlopen could not find "libparakeet.so".
Fix it across the same four layers the sibling voxtral backend already
handles correctly:

- main.go: default the dlopen target to libparakeet.dylib on darwin
  (runtime.GOOS), libparakeet.so elsewhere; PARAKEET_LIBRARY still wins.
- Makefile: also stage the built libparakeet.dylib next to the Go sources.
- package.sh: accept either the Linux .so[.X.Y] or the macOS .dylib when
  bundling instead of hard-failing when no .so is present (the macOS case);
  note that on Darwin only system frameworks are linked.
- run.sh: on Darwin set DYLD_LIBRARY_PATH and PARAKEET_LIBRARY to the
  packaged .dylib; keep LD_LIBRARY_PATH + .so on Linux.

Mirrors backend/go/voxtral.

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

* fix(backends): darwin/metal support across purego Go backends

The parakeet-cpp fix in the previous commit was an instance of a bug
shared by nearly every purego/dlopen Go backend: the dlopen target was
hardcoded to a .so name and run.sh exported only LD_LIBRARY_PATH, so the
backend panicked at startup on macOS/Apple-Metal nodes (dyld needs the
.dylib name and DYLD_LIBRARY_PATH). voxtral was the only backend handling
this correctly.

Apply the same four-layer fix (mirroring backend/go/voxtral) to the
remaining affected backends:

  whisper, sherpa-onnx, ced, stablediffusion-ggml, vibevoice-cpp,
  qwen3-tts-cpp, omnivoice-cpp, crispasr, acestep-cpp, locate-anything-cpp,
  depth-anything-cpp, rfdetr-cpp, sam3-cpp, localvqe

Per backend:
- main.go (sherpa-onnx: backend.go, two libraries): default the dlopen
  target to the .dylib on darwin (runtime.GOOS), .so elsewhere; the
  existing <BACKEND>_LIBRARY env override still wins.
- run.sh: on Darwin set DYLD_LIBRARY_PATH and point <BACKEND>_LIBRARY at
  the packaged .dylib; keep LD_LIBRARY_PATH + the Linux CPU-variant
  (avx/avx2/avx512) selection unchanged in the else branch.
- package.sh: also bundle the .dylib and stop hard-failing when no .so is
  present (the macOS case).
- Makefile: also stage the built .dylib.

Notes:
- stablediffusion-ggml and acestep-cpp build their lib as a CMake MODULE,
  which emits .so (not .dylib) on macOS; run.sh prefers .dylib and falls
  back to .so so both layouts work.
- sherpa-onnx was already partly darwin-aware (Makefile/package.sh); only
  run.sh and the two dlopen defaults needed fixing.

Linux behavior is unchanged. Verified gofmt-clean and
`CGO_ENABLED=0 go build` for every backend.

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>
2026-06-25 08:09:18 +02:00
LocalAI [bot]andmudler 0f3b24436d chore: ⬆️ Update mudler/parakeet.cpp to 89f5e2977b4d8bccd45e7bcc6f2ef7c4ed49e89a (#10468)
⬆️ Update mudler/parakeet.cpp

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2026-06-24 09:41:43 +02:00
LocalAI [bot]andmudler 93706fec57 chore: ⬆️ Update mudler/parakeet.cpp to db755a78d39f789bb7d4e3935158a9e8105dbe36 (#10393)
⬆️ Update mudler/parakeet.cpp

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Co-authored-by: mudler <2420543+mudler@users.noreply.github.com>
2026-06-20 01:37:33 +02:00
LocalAI [bot]andmudler 55f9ff6805 chore: ⬆️ Update mudler/parakeet.cpp to 92a5f0306be354c109150fe58ae4cc4f8a21ca45 (#10380)
⬆️ Update mudler/parakeet.cpp

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Co-authored-by: mudler <2420543+mudler@users.noreply.github.com>
2026-06-18 08:32:13 +02:00
722bdb87e9 chore: ⬆️ Update mudler/parakeet.cpp to b8012f11e5269126eddb7f4fd02f891a2ccc29b0 (#10281)
* ⬆️ Update mudler/parakeet.cpp

Signed-off-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

* fix(parakeet-cpp): close streaming segments on <EOB> after ABI v5 eou/eob split

parakeet.cpp ABI v5 (the pin this PR bumps to) splits the streaming JSON
"eou" flag: in v4 "eou":1 fired for either <EOU> (end of utterance) or
<EOB> (backchannel); in v5 "eou" means <EOU> only, with a new separate
"eob" field for the backchannel token.

The streamSegmenter closed a segment on "eou" alone, so after the bump a
backchannel token would silently stop ending a segment and merge into the
next utterance. Read the new "eob" field and flush on either signal to
preserve the v4 segmentation boundaries. The flat stream_feed eou_out path
is unaffected: its mask is still non-zero for either event.

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

---------

Signed-off-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: mudler <2420543+mudler@users.noreply.github.com>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-06-12 23:12:04 +02:00
LocalAI [bot]andEttore Di Giacinto 8c8204d3c4 feat(parakeet-cpp): enable GGML_CUDA_GRAPHS in the cublas build (#10273)
ggml leaves GGML_CUDA_GRAPHS off by default. Passing -DGGML_CUDA_GRAPHS=ON
for cublas builds lets the CUDA backend capture and replay the compute
graph for a small free speedup (about 1% measured on a GB10, never
negative). It is not gated by parakeet.cpp's CMake options, so it passes
straight through to ggml.

Assisted-by: Claude Opus 4.8 <noreply@anthropic.com>

Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-06-12 18:47:36 +02:00
LocalAI [bot]andmudler 006a9d38c7 chore: ⬆️ Update mudler/parakeet.cpp to 9db92be63179a27201d3b88d5d40c545b2ac48ae (#10263)
⬆️ Update mudler/parakeet.cpp

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Co-authored-by: mudler <2420543+mudler@users.noreply.github.com>
2026-06-12 09:18:21 +02:00
LocalAI [bot]andmudler f6cc90d258 chore: ⬆️ Update mudler/parakeet.cpp to e270af73b94c9a5c37ec516230219ed4580e1db6 (#10212)
⬆️ Update mudler/parakeet.cpp

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Co-authored-by: mudler <2420543+mudler@users.noreply.github.com>
2026-06-07 23:52:44 +02:00
LocalAI [bot]andmudler 72e3241431 chore: ⬆️ Update mudler/parakeet.cpp to abd0087dcc92ec5ad1f96f9fd86c49eb26a5ce67 (#10204)
⬆️ Update mudler/parakeet.cpp

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Co-authored-by: mudler <2420543+mudler@users.noreply.github.com>
2026-06-07 00:37:28 +02:00
LocalAI [bot]andEttore Di Giacinto 03c84cff28 feat(parakeet-cpp): nemotron-3.5-asr multilingual streaming model + request language support (#10199)
* feat(parakeet-cpp): honor request language (multilingual nemotron) on batched + streaming paths

Reads opts.GetLanguage() and threads it through to the new
parakeet_capi_transcribe_pcm_batch_json_lang and parakeet_capi_stream_begin_lang
C-API entry points, both probed with Dlsym so the backend still loads against an
older libparakeet.so (falling back to the non-lang paths, i.e. model default).

parakeet.cpp's batched C-API takes a single target_lang for the whole batch, so
the dispatcher only coalesces same-language requests: a request whose language
differs from the batch leader is held as a single carry-over and becomes the
leader of the next batch, never dropped and never left waiting (including on
shutdown). A new batcher test asserts no dispatched batch is ever mixed-language
and that every submitted request still receives a reply.

Assisted-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(gallery): add parakeet-cpp-nemotron-3.5-asr-streaming-0.6b; bump parakeet.cpp pin

Adds the multilingual prompt-conditioned streaming model to the gallery (q8_0
default, OpenMDW-1.1) and bumps the parakeet-cpp backend pin to the parakeet.cpp
commit that ships nemotron support plus batched causal subsampling and the
batched target_lang C-API.

Assisted-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-06-06 13:53:10 +02:00
LocalAI [bot]andEttore Di Giacinto 0e6712f734 chore: ⬆️ Update mudler/parakeet.cpp to 843600590f96a31467a5199f827c253f34c110f7 (#10198)
chore(parakeet-cpp): bump pin to banded long-audio attention (843600590)

Update PARAKEET_VERSION to mudler/parakeet.cpp@843600590f
(merge of parakeet.cpp#9). Brings NeMo rel_pos_local_attn banded/Longformer
attention with the chunk-matmul construction: long audio now uses O(T*window)
attention instead of global O(T^2), fixing the encoder OOM on long clips
(~16.6-min clip: 54GB->9.4GB peak, ~4x faster) at NeMo's full [128,128] window.
Short clips are unchanged (global path). No C-ABI change.


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>
2026-06-06 09:25:25 +02:00
LocalAI [bot]andmudler c1a55cf72d chore: ⬆️ Update mudler/parakeet.cpp to b11fe5bca78ad8b342dd559a43d76df3984bb447 (#10167)
⬆️ Update mudler/parakeet.cpp

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Co-authored-by: mudler <2420543+mudler@users.noreply.github.com>
2026-06-04 12:07:09 +02:00
LocalAI [bot]andmudler d9ae6481fb chore: ⬆️ Update mudler/parakeet.cpp to 9edf17c3ada66e0f881dcff155492867db7ac4cf (#10141)
⬆️ Update mudler/parakeet.cpp

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Co-authored-by: mudler <2420543+mudler@users.noreply.github.com>
2026-06-03 08:49:47 +02:00
LocalAI [bot]andmudler 1fe96f8d9a chore: ⬆️ Update mudler/parakeet.cpp to 8a7c48209d7882a7ce79a6b306270e4703194543 (#10129)
⬆️ Update mudler/parakeet.cpp

Signed-off-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: mudler <2420543+mudler@users.noreply.github.com>
2026-06-02 09:06:19 +02:00
LocalAI [bot]andmudler 6795d38f50 chore: ⬆️ Update mudler/parakeet.cpp to cb45f68068081af01e7092e91b038ee353eb56be (#10116)
⬆️ Update mudler/parakeet.cpp

Signed-off-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: mudler <2420543+mudler@users.noreply.github.com>
2026-05-31 23:57:15 +02:00
LocalAI [bot]andEttore Di Giacinto 39e050d9e2 fix(parakeet-cpp): cublas/hipblas/vulkan builds were silently CPU-only (#10120)
fix(parakeet-cpp): forward PARAKEET_GGML_* so cublas/hipblas/vulkan builds aren't silently CPU-only

parakeet.cpp gates its GGML backends behind PARAKEET_GGML_CUDA/HIP/VULKAN and
does set(GGML_CUDA ${PARAKEET_GGML_CUDA} CACHE BOOL "" FORCE), which overwrites
a bare -DGGML_CUDA=ON back to OFF. So the backend's BUILD_TYPE=cublas (and hipblas,
vulkan) produced a CPU-only libparakeet.so. Forward the PARAKEET_GGML_* options
instead. Verified on a GB10 (CUDA 13): the lib now links libcudart/libcublas and
registers the CUDA backend, vs a CPU-only lib before.

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>
2026-05-31 23:56:07 +02:00
LocalAI [bot]andmudler aee4611ab2 chore: ⬆️ Update mudler/parakeet.cpp to 30a307553f1965ceb38a1a922069a71e7dd67bf3 (#10092)
⬆️ Update mudler/parakeet.cpp

Signed-off-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: mudler <2420543+mudler@users.noreply.github.com>
2026-05-30 22:48:09 +02:00
LocalAI [bot]andEttore Di Giacinto 4912c9b73a feat(parakeet-cpp): add NVIDIA NeMo Parakeet ASR backend (parakeet.cpp) (#10084)
* feat(parakeet-cpp): L0 backend scaffold, LoadModel + AudioTranscription (text)

Add a Go gRPC backend that bridges LocalAI to parakeet.cpp via the flat
C-API (parakeet_capi.h), loaded with purego (cgo-less, mirrors the
whisper / vibevoice-cpp backends).

L0 scope:
- main.go: dlopen libparakeet.so (override via PARAKEET_LIBRARY), register
  the C-API entry points, start the gRPC server.
- goparakeetcpp.go: Load (parakeet_capi_load), AudioTranscription
  (parakeet_capi_transcribe_path, decoder=0 = per-arch default head),
  Free, serialized through base.SingleThread since the C engine is a
  thread-unsafe singleton. char* returns are bound as uintptr so the
  malloc'd buffer is freed via parakeet_capi_free_string after copy.
- AudioTranscriptionStream returns a clear "not implemented in L0" error
  (closes the channel so the server doesn't hang), wired in L2.
- Makefile: clone-at-pin + cmake (PARAKEET_VERSION for bump_deps.sh),
  with a local-symlink dev shortcut; run.sh / package.sh mirror whisper.
- Test auto-skips without PARAKEET_BACKEND_TEST_MODEL/_WAV fixtures.

Builds clean (CGO_ENABLED=0), gofmt clean, test passes. The single
unsafeptr vet note in goStringFromCPtr is documented and matches the
whisper backend's tolerated pattern.

Word/segment timestamps (L1) and cache-aware streaming (L2) follow.

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

* feat(parakeet-cpp): L1 word/segment timestamps via transcribe_path_json

AudioTranscription now calls parakeet_capi_transcribe_path_json and shapes
the per-word / per-token timestamps into the TranscriptResult:

- Bind parakeet_capi_transcribe_path_json (purego, char* as uintptr like
  the other returns) and register it in main.go + the test loader.
- Parse the JSON document ({"text","words":[{w,start,end,conf}],
  "tokens":[{id,t,conf}]}) into typed structs.
- Synthesise a single whole-clip segment (parakeet emits no native segment
  boundaries) spanning the first word start to the last word end; token ids
  populate Segment.Tokens.
- Attach word-level timings only when timestamp_granularities=["word"],
  matching the OpenAI API (segment-level default). secondsToNanos mirrors
  the whisper backend's nanosecond convention.

Verified end-to-end against tdt_ctc-110m (f16): both the default and
word-granularity specs pass; builds clean, gofmt clean, vet shows only the
one documented unsafeptr note shared with the whisper backend.

Cache-aware streaming (L2) follows.

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

* feat(parakeet-cpp): L2 cache-aware streaming with EOU segmentation

Wire AudioTranscriptionStream to the streaming RNN-T C-API:

- Bind parakeet_capi_stream_{begin,feed,finalize,free}; feed takes 16 kHz
  mono float PCM ([]float32 via purego) and writes *eou_out on <EOU>/<EOB>.
- Decode opts.Dst to 16 kHz mono PCM (utils.AudioToWav + go-audio, same as
  the whisper backend), feed it in 1 s chunks, and emit each newly-finalized
  text run as a TranscriptStreamResponse delta.
- <EOU>/<EOB> events close the current segment; a closing FinalResult carries
  the full transcript plus the per-utterance segments (with a whole-clip
  fallback segment when no EOU fired).
- stream_begin returns 0 for non-streaming models, surfaced as a clear
  error instead of an empty stream. Honours context cancellation between
  chunks. Frees every malloc'd delta and the session.

Verified end-to-end against realtime_eou_120m-v1 (f16): the streamed
transcript matches the offline 110m reference word-for-word, deltas
reconstruct the final text, and the spec passes alongside the offline
specs. Builds clean, gofmt clean, vet shows only the shared documented
unsafeptr note.

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

* feat(parakeet-cpp): L3 register backend in build/CI/gallery (whisper parity)

Wire the new Go gRPC parakeet-cpp backend (parakeet.cpp ggml port of NVIDIA
NeMo Parakeet ASR) into LocalAI's build/CI/gallery surfaces, matching the
existing ggml whisper Go backend 1:1.

- .github/backend-matrix.yml: add 11 linux entries + 1 darwin entry mirroring
  every whisper build (cpu amd64/arm64, intel sycl f32/f16, vulkan amd64/arm64,
  nvidia cuda-12, nvidia cuda-13, nvidia-l4t-arm64, nvidia-l4t-cuda-13-arm64,
  rocm hipblas, metal-darwin-arm64), all on ./backend/Dockerfile.golang with
  backend: "parakeet-cpp" and -*-parakeet-cpp tag-suffixes.
- scripts/changed-backends.js: explicit inferBackendPath branch resolving
  parakeet-cpp to backend/go/parakeet-cpp/ before the generic golang branch.
- .github/workflows/bump_deps.yaml: track the PARAKEET_VERSION pin in
  backend/go/parakeet-cpp/Makefile (repo mudler/parakeet.cpp, branch master).
- backend/index.yaml: add &parakeetcpp meta + latest/development image entries
  for every matrix tag-suffix.
- Makefile: add backends/parakeet-cpp to .NOTPARALLEL, BACKEND_PARAKEET_CPP
  definition, docker-build target eval, and test-extra-backend-parakeet-cpp-
  transcription target (mirrors test-extra-backend-whisper-transcription).

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

* feat(parakeet-cpp): L4 gallery importer for parakeet GGUFs

Add ParakeetCppImporter so parakeet.cpp GGUFs auto-detect on /import-model
and route to the parakeet-cpp backend (it also surfaces in /backends/known,
which drives the import dropdown).

- Match is narrow: a .gguf whose name carries a parakeet architecture token
  (<arch>-<size>-<quant>.gguf, e.g. tdt_ctc-110m-f16.gguf, rnnt-0.6b-q4_k.gguf,
  realtime_eou_120m-v1-q8_0.gguf), a direct URL to one, or
  preferences.backend="parakeet-cpp". It deliberately does NOT claim arbitrary
  llama-style GGUFs, nor the upstream nvidia/parakeet-* NeMo repos (.nemo, not
  runnable here).
- Registered in the ASR batch BEFORE LlamaCPPImporter so its GGUFs aren't
  swallowed by the generic .gguf importer.
- Import nests files under parakeet-cpp/models/<name>/, defaults to the
  smallest quant (q4_k, near-lossless on parakeet) with a size-ladder
  fallback, and honours preferences.quantizations / name / description.

Tested with synthetic HF details (no network): metadata, positive matches
(HF repo, direct URL, preference), narrowness negatives (llama GGUF, NeMo
repo), and import (default quant, override, direct URL), 9 specs pass,
build/vet/gofmt clean.

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

* docs(parakeet-cpp): document the parakeet-cpp transcription backend

Add parakeet-cpp to the audio-to-text backend list and a dedicated usage
section: direct GGUF import (auto-detects to the backend), model YAML,
word-level timestamps via timestamp_granularities[]=word, and cache-aware
streaming with the realtime_eou model. Points at the mudler/parakeet-cpp-gguf
collection repo.

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

* ci(parakeet-cpp): wire transcription gRPC e2e test into test-extra

The L3 commit added the test-extra-backend-parakeet-cpp-transcription
Makefile target but never invoked it in CI. Mirror the whisper job:

- Add a parakeet-cpp output to detect-changes (emitted by
  changed-backends.js from the matrix entry).
- Add tests-parakeet-cpp-grpc-transcription, gated on the parakeet-cpp
  path filter / run-all, building the backend image and running the
  transcription e2e against tdt_ctc-110m + the JFK clip.

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

* style(parakeet-cpp): drop em dashes from comments and docs

Replace em dashes with plain punctuation in the backend comments, the
importer, package.sh, and the audio-to-text docs section (and use "and"
instead of the multiplication sign). No behaviour change.

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

* feat(gallery): add parakeet-cpp f16 models to the model gallery

Add the 10 NVIDIA Parakeet models (f16, the recommended quality/speed
default) as gallery entries that install on the parakeet-cpp backend from
mudler/parakeet-cpp-gguf: tdt_ctc-110m/1.1b, tdt-0.6b-v2/v3, tdt-1.1b,
ctc-0.6b/1.1b, rnnt-0.6b/1.1b, and the cache-aware streaming
realtime_eou_120m-v1. Each pins the file sha256 and routes transcript
usecases to the backend.

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

* fix(parakeet-cpp): satisfy govet lint + bump PARAKEET_VERSION

- goparakeetcpp.go: //nolint:govet on the C-owned-pointer unsafe.Pointer
  conversion (golangci-lint reports new-only issues, so unlike the whisper
  backend's identical line this one is flagged).
- Makefile: bump PARAKEET_VERSION to the current parakeet.cpp master commit
  (the previous pin's commit no longer exists after upstream history was
  squashed), so the backend image clone/build resolves again.

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

* fix(parakeet-cpp): pin PARAKEET_VERSION to a tag-stable commit

The previous SHA pin was orphaned when parakeet.cpp's single-commit master
was amended/force-pushed, so the backend image clone (git fetch <sha>) failed
across every build variant. Repoint to 845c29e, which upstream now keeps
permanently fetchable via the `localai-backend-pin` tag, so future upstream
amends no longer break the backend build.

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

* fix(parakeet-cpp): init the ggml submodule in the backend image clone

The backend Dockerfile clones parakeet.cpp at PARAKEET_VERSION with a shallow
fetch + checkout but never initialised submodules, so third_party/ggml was
empty and the parakeet.cpp cmake build failed at
`add_subdirectory(third_party/ggml)` (CMakeLists.txt:53) on every build
variant. Add `git submodule update --init --recursive --depth 1
--single-branch` after checkout, mirroring the whisper backend. Verified
locally: clone + submodule + cmake configure now succeeds.

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

* fix(parakeet-cpp): statically link ggml into libparakeet.so

The shared libparakeet.so linked ggml's shared libs (libggml*.so), but the
package only ships libparakeet.so, so at runtime dlopen failed with
"libggml.so.0: cannot open shared object file" (the e2e transcription test
panicked on load). Build ggml static + PIC (BUILD_SHARED_LIBS=OFF,
CMAKE_POSITION_INDEPENDENT_CODE=ON) so libparakeet.so embeds ggml and depends
only on system libs already present in the runtime image. Verified locally:
ldd shows no libggml dependency.

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

* fix(parakeet-cpp): non-streaming fallback in AudioTranscriptionStream

The e2e streaming test ran AudioTranscriptionStream against tdt_ctc-110m
(not a cache-aware streaming model), so stream_begin returned 0 and the call
errored. Per LocalAI's streaming contract (and the whisper backend), a
non-streaming model should fall back to a single offline transcription
emitted as one delta plus a closing FinalResult. Do that instead of erroring,
so the streaming endpoint works for every parakeet model. Verified locally:
the streaming spec passes against the non-streaming 110m model via fallback.

Assisted-by: Claude: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>
2026-05-30 14:46:10 +02:00