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[Docs] Note image preprocessing difference between qwen_vl_utils and vllm. (#43393)

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Signed-off-by: wang.yuqi <yuqi.wang@daocloud.io>
Signed-off-by: wang.yuqi <noooop@126.com>
Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
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wang.yuqi
2026-05-22 16:43:14 +08:00
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parent a761697717
commit 2380bfc210
3 changed files with 10 additions and 6 deletions
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docs/models/pooling_models/embed.md
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@@ -91,7 +91,7 @@ You can compute pairwise similarity scores to build a similarity matrix using th
| `LlamaNemotronVLModel` | Llama Nemotron Embedding + SigLIP | T + I | `nvidia/llama-nemotron-embed-vl-1b-v2` | | |
| `LlavaNextForConditionalGeneration`<sup>C</sup> | LLaVA-NeXT-based | T / I | `royokong/e5-v` | | ✅︎ |
| `Phi3VForCausalLM`<sup>C</sup> | Phi-3-Vision-based | T + I | `TIGER-Lab/VLM2Vec-Full` | | ✅︎ |
| `Qwen3VLForConditionalGeneration`<sup>C</sup> | Qwen3-VL | T + I + V | `Qwen/Qwen3-VL-Embedding-2B`, etc. | ✅︎ | ✅︎ |
| `Qwen3VLForConditionalGeneration`<sup>C</sup> (see note) | Qwen3-VL | T + I + V | `Qwen/Qwen3-VL-Embedding-2B`, etc. | ✅︎ | ✅︎ |
| `SiglipModel` | SigLIP, SigLIP2 | T / I | `google/siglip-base-patch16-224`, `google/siglip2-base-patch16-224` | | |
| `*ForConditionalGeneration`<sup>C</sup>, `*ForCausalLM`<sup>C</sup>, etc. | Generative models | \* | N/A | \* | \* |
@@ -102,6 +102,9 @@ If your model is not in the above list, we will try to automatically convert the
[as_embedding_model][vllm.model_executor.models.adapters.as_embedding_model]. By default, the embeddings
of the whole prompt are extracted from the normalized hidden state corresponding to the last token.
!!! note
`Qwen3-VL-Embedding` officially uses `qwen_vl_utils` for image preprocessing, while vLLM uses `transformers`' `video_processing_qwen3_vl`, which leads to slightly different results compared to the official Hugging Face repository examples. Example code for offline inference using `qwen_vl_utils` can be found in the [vision_embedding_offline.py](../../../examples/pooling/embed/vision_embedding_offline.py) example.
!!! note
Although vLLM supports automatically converting models of any architecture into embedding models via --convert embed, to get the best results, you should use pooling models that are specifically trained as such.
docs/models/pooling_models/scoring.md
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@@ -103,7 +103,7 @@ The three supported scoring functions are as illustrated in the figure below.
\* Feature support is the same as that of the original model.
!!! note
Similar to Qwen3-Reranker, you need to use the following `--hf_overrides` to load the official original `Qwen3-VL-Reranker`.
Similar to Qwen3-Reranker, you need to use the following `--hf_overrides` to load the official original `Qwen3-VL-Reranker`. `Qwen3-VL` officially uses `qwen_vl_utils` for image preprocessing, while vLLM uses `transformers`' `video_processing_qwen3_vl`, which leads to slightly different results compared to the official Hugging Face repository examples.
```bash
vllm serve Qwen/Qwen3-VL-Reranker-2B --hf_overrides '{"architectures": ["Qwen3VLForSequenceClassification"],"classifier_from_token": ["no", "yes"],"is_original_qwen3_reranker": true}'
docs/models/supported_models.md
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@@ -619,13 +619,13 @@ These models primarily accept the [`LLM.generate`](./generative_models.md#llmgen
| `QianfanOCRForConditionalGeneration` | QianfanOCR | T + I<sup>E+</sup> | `baidu/Qianfan-OCR`, etc. | ✅︎ | ✅︎ |
| `QwenVLForConditionalGeneration`<sup>^</sup> | Qwen-VL | T + I<sup>E+</sup> | `Qwen/Qwen-VL`, `Qwen/Qwen-VL-Chat`, etc. | ✅︎ | ✅︎ |
| `Qwen2AudioForConditionalGeneration` | Qwen2-Audio | T + A<sup>+</sup> | `Qwen/Qwen2-Audio-7B-Instruct` | | ✅︎ |
| `Qwen2VLForConditionalGeneration` | QVQ, Qwen2-VL | T + I<sup>E+</sup> + V<sup>E+</sup> | `Qwen/QVQ-72B-Preview`, `Qwen/Qwen2-VL-7B-Instruct`, `Qwen/Qwen2-VL-72B-Instruct`, etc. | ✅︎ | ✅︎ |
| `Qwen2_5_VLForConditionalGeneration` | Qwen2.5-VL | T + I<sup>E+</sup> + V<sup>E+</sup> | `Qwen/Qwen2.5-VL-3B-Instruct`, `Qwen/Qwen2.5-VL-72B-Instruct`, etc. | ✅︎ | ✅︎ |
| `Qwen2VLForConditionalGeneration` <sup>Q</sup> | QVQ, Qwen2-VL | T + I<sup>E+</sup> + V<sup>E+</sup> | `Qwen/QVQ-72B-Preview`, `Qwen/Qwen2-VL-7B-Instruct`, `Qwen/Qwen2-VL-72B-Instruct`, etc. | ✅︎ | ✅︎ |
| `Qwen2_5_VLForConditionalGeneration` <sup>Q</sup> | Qwen2.5-VL | T + I<sup>E+</sup> + V<sup>E+</sup> | `Qwen/Qwen2.5-VL-3B-Instruct`, `Qwen/Qwen2.5-VL-72B-Instruct`, etc. | ✅︎ | ✅︎ |
| `Qwen2_5OmniThinkerForConditionalGeneration` | Qwen2.5-Omni | T + I<sup>E+</sup> + V<sup>E+</sup> + A<sup>+</sup> | `Qwen/Qwen2.5-Omni-3B`, `Qwen/Qwen2.5-Omni-7B` | ✅︎ | ✅︎ |
| `Qwen3_5ForConditionalGeneration` | Qwen3.5 | T + I<sup>E+</sup> + V<sup>E+</sup> | `Qwen/Qwen3.5-9B-Instruct`, etc. | ✅︎ | ✅︎ |
| `Qwen3_5MoeForConditionalGeneration` | Qwen3.5-MOE | T + I<sup>E+</sup> + V<sup>E+</sup> | `Qwen/Qwen3.5-35B-A3B-Instruct`, etc. | ✅︎ | ✅︎ |
| `Qwen3VLForConditionalGeneration` | Qwen3-VL | T + I<sup>E+</sup> + V<sup>E+</sup> | `Qwen/Qwen3-VL-4B-Instruct`, etc. | ✅︎ | ✅︎ |
| `Qwen3VLMoeForConditionalGeneration` | Qwen3-VL-MOE | T + I<sup>E+</sup> + V<sup>E+</sup> | `Qwen/Qwen3-VL-30B-A3B-Instruct`, etc. | ✅︎ | ✅︎ |
| `Qwen3VLForConditionalGeneration` <sup>Q</sup> | Qwen3-VL | T + I<sup>E+</sup> + V<sup>E+</sup> | `Qwen/Qwen3-VL-4B-Instruct`, etc. | ✅︎ | ✅︎ |
| `Qwen3VLMoeForConditionalGeneration` <sup>Q</sup> | Qwen3-VL-MOE | T + I<sup>E+</sup> + V<sup>E+</sup> | `Qwen/Qwen3-VL-30B-A3B-Instruct`, etc. | ✅︎ | ✅︎ |
| `Qwen3OmniMoeThinkerForConditionalGeneration` | Qwen3-Omni | T + I<sup>E+</sup> + V<sup>E+</sup> + A<sup>+</sup> | `Qwen/Qwen3-Omni-30B-A3B-Instruct`, `Qwen/Qwen3-Omni-30B-A3B-Thinking` | ✅︎ | ✅︎ |
| `Qwen3ASRForConditionalGeneration` | Qwen3-ASR | T + A<sup>+</sup> | `Qwen/Qwen3-ASR-1.7B` | ✅︎ | ✅︎ |
| `RForConditionalGeneration` | R-VL-4B | T + I<sup>E+</sup> | `YannQi/R-4B` | | ✅︎ |
@@ -647,6 +647,7 @@ Some models are supported only via the [Transformers modeling backend](#transfor
<sup>E</sup> Pre-computed embeddings can be inputted for this modality.</br>
<sup>+</sup> Multiple items can be inputted per text prompt for this modality.
<sup>*</sup> Only specific variants of the model support this modality (see notes below).</br>
<sup>Q</sup> `Qwen*-VL` officially uses `qwen_vl_utils` for image preprocessing, while vLLM uses `transformers`' `video_processing_qwen*`, which leads to slightly different results compared to the official Hugging Face repository examples.
!!! note
`Gemma3nForConditionalGeneration` is only supported on V1 due to shared KV caching and it depends on `timm>=1.0.17` to make use of its