From 309a8f66ee0daec7dbee5030dac1bcfcfad7b3ec Mon Sep 17 00:00:00 2001
From: Cyrus Leung <tlleungac@connect.ust.hk>
Date: Wed, 7 Jan 2026 07:46:56 +0800
Subject: [PATCH] [Bugfix] Handle mistral tokenizer in get_hf_processor
 (#31817)

Signed-off-by: DarkLight1337 <tlleungac@connect.ust.hk>
---
 vllm/multimodal/processing.py | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/vllm/multimodal/processing.py b/vllm/multimodal/processing.py
index dc5c4307ce4..8e3f32698a6 100644
--- a/vllm/multimodal/processing.py
+++ b/vllm/multimodal/processing.py
@@ -1186,10 +1186,16 @@ class InputProcessingContext:
 
             typ = ProcessorMixin
 
+        from vllm.tokenizers.mistral import MistralTokenizer
+
+        tokenizer = self.tokenizer
+        if isinstance(tokenizer, MistralTokenizer):
+            tokenizer = tokenizer.transformers_tokenizer
+
         return cached_processor_from_config(
             self.model_config,
             processor_cls=typ,
-            tokenizer=self.tokenizer,
+            tokenizer=tokenizer,
             **kwargs,
         )