diff --git a/backend/cpp/llama-cpp/Makefile b/backend/cpp/llama-cpp/Makefile
index 5cc250b66..869201031 100644
--- a/backend/cpp/llama-cpp/Makefile
+++ b/backend/cpp/llama-cpp/Makefile
@@ -1,5 +1,5 @@
 
-LLAMA_VERSION?=bed0a856606ee4a24a164066f73d2379447033f5
+LLAMA_VERSION?=51ce9c11a6f2dfa895696c0048c4333e8953b728
 LLAMA_REPO?=https://github.com/ggerganov/llama.cpp
 
 CMAKE_ARGS?=
diff --git a/backend/cpp/llama-cpp/patches/0001-add-server-task-type-score.patch b/backend/cpp/llama-cpp/patches/0001-add-server-task-type-score.patch
index 0b992cded..f51f70ad7 100644
--- a/backend/cpp/llama-cpp/patches/0001-add-server-task-type-score.patch
+++ b/backend/cpp/llama-cpp/patches/0001-add-server-task-type-score.patch
@@ -367,7 +367,7 @@ index edb8e2d..9c88feb 100644
 
                      // make a checkpoint of the parts of the memory that cannot be rolled back.
                      // checkpoints are created only if:
-@@ -3670,13 +3944,46 @@ private:
+@@ -3806,16 +4080,49 @@ private:
                          // embedding requires all tokens in the batch to be output;
                          // MTP also wants logits at every prompt position so the
                          // streaming hook can mirror t_h_nextn into ctx_dft.
@@ -384,6 +384,9 @@ index edb8e2d..9c88feb 100644
 -                            /* output    = */ slot.need_embd(),
 +                            /* output    = */ slot.need_embd() || need_score_logit,
                              /* is_prompt = */ true);
+                         if (!slot.task->decision.order.empty()) {
+                             batch.set_decision_order(batch.size() - 1, slot.task->decision.order[slot.prompt.n_tokens()]);
+                         }
                          slot.prompt.tokens.push_back(cur_tok);
 
 +                        // score tasks: break at the shared-prompt boundary so the checkpoint
diff --git a/backend/cpp/llama-cpp/patches/0002-add-server-task-type-tts.patch b/backend/cpp/llama-cpp/patches/0002-add-server-task-type-tts.patch
index 331e1a248..07cdb8901 100644
--- a/backend/cpp/llama-cpp/patches/0002-add-server-task-type-tts.patch
+++ b/backend/cpp/llama-cpp/patches/0002-add-server-task-type-tts.patch
@@ -580,14 +580,14 @@ index 9c88feb..064bb51 100644
                  }
 
 @@ -4678,6 +4835,8 @@ server_context_meta server_context::get_meta() const {
-         /* has_inp_image          */ impl->chat_params.allow_image,
-         /* has_inp_audio          */ impl->chat_params.allow_audio,
-         /* has_inp_video          */ impl->chat_params.allow_video,
-+        /* has_cap_chat           */ impl->has_cap_chat(),
-+        /* has_cap_tts            */ impl->has_cap_tts(),
-         /* json_ui_settings       */ impl->json_ui_settings,
-         /* slot_n_ctx             */ impl->n_ctx_slot(),
-         /* pooling_type           */ llama_pooling_type(impl->ctx_tgt),
+         /* has_inp_image           */ impl->chat_params.allow_image,
+         /* has_inp_audio           */ impl->chat_params.allow_audio,
+         /* has_inp_video           */ impl->chat_params.allow_video,
++        /* has_cap_chat            */ impl->has_cap_chat(),
++        /* has_cap_tts             */ impl->has_cap_tts(),
+         /* json_ui_settings        */ impl->json_ui_settings,
+         /* slot_n_ctx              */ impl->n_ctx_slot(),
+         /* pooling_type            */ llama_pooling_type(impl->ctx_tgt),
 @@ -4751,6 +4910,11 @@ std::unique_ptr<server_res_generator> server_routes::handle_completions_impl(
 
      res->set_req(&req); // will also set spipe if needed