Files
ragflow/conf/models/nvidia.json
Renzo 39ee2fb120 Go: implement Rerank in NVIDIA driver (#14778)
## Summary

- Replaces the `"no such method"` stub on `NvidiaModel.Rerank`
(`internal/entity/models/nvidia.go`) with a real implementation against
NVIDIA NIM's `/ranking` endpoint.
- Mirrors the existing Python `NvidiaRerank` class at
`rag/llm/rerank_model.py:149-190` for behavior parity: same
`passages`/`query.text`/`logit` payload shape; `top_n` set to
`len(documents)` so every input gets a score returned in original order
(the issue body's spec omitted `top_n`, which would cause silent data
loss).
- Adds the `"rerank": "ranking"` URL suffix and two NIM rerank model
entries (`nvidia/nv-rerankqa-mistral-4b-v3`,
`nvidia/llama-3.2-nv-rerankqa-1b-v2`) to `conf/models/nvidia.json` so
the picker exposes them.
- Follows the same shape as the recently merged Aliyun (#14676), Gitee
(#14656), and ZhipuAI (#14608) Rerank implementations: lowercase
per-driver request/response types, conversion to the project-wide
`RerankResponse{Data: []RerankResult}`, per-call `context.WithTimeout`
of 30s.

Closes #14720

## Test plan

- [x] `gofmt -l internal/entity/models/nvidia.go` — clean
- [x] `go vet ./internal/entity/models/...` — no new errors introduced
(the two pre-existing vet errors in `baidu.go:642` and
`openrouter.go:566` are unrelated to this PR)
- [x] `go build ./internal/entity/models/...` — succeeds
- [x] `python3 -c "import json;
json.load(open('conf/models/nvidia.json'))"` — JSON valid
- [ ] Live smoke test against NVIDIA NIM with a real API key (requires
reviewer with NIM credentials)

## Notes for reviewers

- The issue body suggested omitting `top_n`. The Python reference
includes it (`top_n: len(texts)`), and without it NVIDIA returns only
the default top-K rankings rather than scores for every input. This PR
follows the Python.
- The URL host is `integrate.api.nvidia.com` (kept consistent with the
existing chat/embeddings BaseURL in `nvidia.go`), not the legacy
`ai.api.nvidia.com` host the Python uses. NIM's unified endpoint accepts
the model names as-is, so no per-model URL transform is needed.
2026-05-11 17:21:16 +08:00

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JSON

{
"name": "Nvidia",
"url": {
"default": "https://integrate.api.nvidia.com/v1"
},
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"embedding": "embeddings",
"rerank": "ranking"
},
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