docs(providers): add llama.cpp / LM Studio guide - #692
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llama.cpp users have no setup guidance today (the embeddings-classification report in #689 came from one). Documents registering llama-server as a vLLM-type provider, the pooling requirement for /v1/embeddings, ID-based model classification, and what llama.cpp does not serve (rerank via passthrough only; no image-generation or OpenAI audio endpoints). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Included review availability: Your plan includes up to 4 reviews per rolling hour; 0 remain after this review. 📝 WalkthroughWalkthroughThe pull request adds a llama.cpp provider guide, documents llama.cpp and LM Studio as vLLM-type providers, and adds the guide to provider navigation. Changesllama.cpp provider documentation
Estimated code review effort: 2 (Simple) | ~10 minutes Merge Risk: 🟡 Moderate · up to The guide still contains two actionable setup errors: launch examples do not specify the model IDs used in verification requests, and reranking instructions omit a required embedding-mode flag. Users may therefore encounter failed requests or unavailable reranking, so the PR should be corrected or explicitly accepted before merging. Possibly related PRs
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Actionable comments posted: 3
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Inline comments:
In `@docs/providers/llamacpp.mdx`:
- Around line 93-96: Update the llama-server reranking setup documentation to
include the required embedding-mode flag, either --embedding or --embeddings,
alongside --rerank and --pooling rank; retain the existing passthrough endpoint
guidance.
- Around line 97-101: Update the “Image generation and audio endpoints”
documentation to state that llama-server supports POST /v1/audio/transcriptions,
while GoModel’s vllm provider does not natively route audio transcription
requests. Preserve the existing limitations for image generation and audio
speech endpoints, and retain the guidance to route unsupported capabilities to a
suitable provider.
- Around line 22-23: Update both llama-server launch commands in the
documentation to set explicit model aliases: use gemma-3-4b-it for the Gemma
model and nomic-embed-text-v1.5 for the embedding model, ensuring the documented
curl model selectors match the IDs exposed by /v1/models.
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docs/docs.jsondocs/providers/llamacpp.mdxdocs/providers/overview.mdx
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Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Confidence Score: 4/5The documentation change is not ready to merge because its reranking request can target the wrong upstream in the coexistence configuration it describes. The incorrect route was reproduced using the real gateway with separate mock vLLM and llama.cpp upstreams, and the corrected provider path reached llama.cpp as intended. Files Needing Attention:
 T-Rex LogsWhat T-Rex did
Comments Outside Diff (1)
Reviews (1): Last reviewed commit: "docs(providers): add llama.cpp / LM Stud..." | Re-trigger Greptile |
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| - **Reranking** — llama-server serves `/v1/rerank` (start with `--rerank`, a | ||
| reranker model, and `--pooling rank`), but GoModel has no rerank endpoint; | ||
| reach it through [passthrough](/features/passthrough-api): | ||
| `POST /p/vllm/v1/rerank`. |
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When VLLM_BASE_URL configures a real vLLM server and llama.cpp is registered as vllm-llamacpp, POST /p/vllm/v1/rerank selects the default vLLM provider rather than llama.cpp. The request therefore reaches the wrong upstream or fails if that upstream does not support reranking. Use POST /p/vllm-llamacpp/v1/rerank for the suffixed llama.cpp configuration documented above.
Artifacts
Executable gateway routing reproduction script
- This script starts GoModel with distinct default-vLLM and llama.cpp mock upstreams, makes both passthrough requests, and records their responses; it is the executable reproduction.
Gateway routing reproduction output
- This executed-script output records exit code 0 and shows the documented path returned default-vllm while the suffixed path returned llamacpp; the routing defect is reproduced.
Documented rerank path routes to default vLLM
- This captured request to `/p/vllm/v1/rerank` returned the default-vllm upstream response; the documented path selects the wrong instance in the coexistence setup.
Suffixed llama.cpp rerank path routes to llama.cpp
- This captured request to `/p/vllm-llamacpp/v1/rerank` returned the llamacpp upstream response; the provider-name path correction routes correctly.
Mint documentation validation output
- This is the captured `mint validate` run from the docs directory with exit code 0; the existing documentation builds successfully despite the routing defect.
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Fixed in f5ee4cb — the passthrough example now notes to use the instance name (/p/vllm-llamacpp/v1/rerank) for a suffixed setup. Passthrough enablement itself is by provider type, so the suffixed instance passes the default gate.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2 participants
Follow-up to #689, which was triggered by a llama.cpp user whose embeddings model wasn't classified — the docs had no llama.cpp guidance at all (one passing mention in
advanced/model-metadata.mdx).What
New
docs/providers/llamacpp.mdx, in the same shape as the vLLM/SGLang pages:llamacppprovider type; register llama-server as a vLLM-type provider (optional API key, slash-tolerant model IDs). Explicitly warns against theollamatype, which speaks Ollama's native API and breaks these servers. The same recipe covers LM Studio./v1/embeddingsonly for models with pooling ≠none(--pooling mean/cls/last; dedicated embedding GGUFs usually declare it);--embeddingsis an optional embeddings-only restriction, not a requirement. Verified against the llama-server README./v1/modelscarries no capability metadata, so the page explains the ID heuristic from feat(models): classify local embedding models without registry metadata #689 and links to the model-metadata guide for manualmodesdeclarations.--mmprojthrough normal chat;/v1/rerankexists upstream but GoModel has no rerank surface, so it's reachable only via passthrough (/p/vllm/v1/rerank); llama.cpp has no image generation or OpenAI audio endpoints (stable-diffusion.cpp and whisper.cpp are separate, non-OpenAI-compatible projects).Also adds a matrix row and a notes bullet in
providers/overview.mdxand registers the page indocs.json(after vLLM).mint validatepasses.🤖 Generated with Claude Code
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