model(vlm): mistral 3.1 (#5099)

Co-authored-by: KivenChen <sleigh-queue-0y@icloud.com>

python/sglang/srt/managers/multimodal_processors/llava.py

@@ -20,6 +20,7 @@ from sglang.srt.models.llava import (
     LlavaQwenForCausalLM,
 )
 from sglang.srt.models.llavavid import LlavaVidForCausalLM
+from sglang.srt.models.mistral import Mistral3ForConditionalGeneration
 from sglang.srt.utils import load_image, logger
 from sglang.utils import get_exception_traceback
 
@@ -176,10 +177,10 @@ class LlavaImageProcessor(BaseMultimodalProcessor):
 
 class LlavaMultimodalProcessor(BaseMultimodalProcessor):
     """
-    This is a wrapper class used to identify the multimodal processor for Llava architecture models.
+    This is a wrapper class used to identify the multimodal processor for Llava architectures' vision model.
     """
 
-    models = [LlavaForConditionalGeneration]
+    models = [LlavaForConditionalGeneration, Mistral3ForConditionalGeneration]
 
     def _get_sgl_processor_cls(self, model_type: str):
         if hf_name := HF_MAPPING_NAMES.get(model_type):