From 4cb59dea6a9b54cd3cae87ac69fb0a836615f196 Mon Sep 17 00:00:00 2001
From: Cyrus Leung <tlleungac@connect.ust.hk>
Date: Sat, 31 Jan 2026 21:21:32 +0800
Subject: [PATCH] [Bugfix] Fix incompatibility between #33372 and #32863
 (#33475)

Signed-off-by: DarkLight1337 <tlleungac@connect.ust.hk>
---
 vllm/renderers/deepseek_v32.py | 2 --
 vllm/renderers/grok2.py        | 2 --
 vllm/renderers/hf.py           | 1 -
 vllm/renderers/params.py       | 2 +-
 4 files changed, 1 insertion(+), 6 deletions(-)

diff --git a/vllm/renderers/deepseek_v32.py b/vllm/renderers/deepseek_v32.py
index 18103b9d7e5..91b95db06f4 100644
--- a/vllm/renderers/deepseek_v32.py
+++ b/vllm/renderers/deepseek_v32.py
@@ -71,7 +71,6 @@ class DeepseekV32Renderer(RendererLike):
             content_format="string",
         )
 
-        kwargs["return_dict"] = False
         prompt_raw = tokenizer.apply_chat_template(
             conversation=conversation,
             messages=messages,
@@ -98,7 +97,6 @@ class DeepseekV32Renderer(RendererLike):
             content_format="string",
         )
 
-        kwargs["return_dict"] = False
         prompt_raw = tokenizer.apply_chat_template(
             conversation=conversation,
             messages=messages,
diff --git a/vllm/renderers/grok2.py b/vllm/renderers/grok2.py
index e064b7c8bbd..feefe8f0b4e 100644
--- a/vllm/renderers/grok2.py
+++ b/vllm/renderers/grok2.py
@@ -71,7 +71,6 @@ class Grok2Renderer(RendererLike):
             content_format="string",
         )
 
-        kwargs["return_dict"] = False
         prompt_raw = tokenizer.apply_chat_template(
             conversation=conversation,
             messages=messages,
@@ -98,7 +97,6 @@ class Grok2Renderer(RendererLike):
             content_format="string",
         )
 
-        kwargs["return_dict"] = False
         prompt_raw = tokenizer.apply_chat_template(
             conversation=conversation,
             messages=messages,
diff --git a/vllm/renderers/hf.py b/vllm/renderers/hf.py
index 41a8aa450c9..eb90c9e6d3a 100644
--- a/vllm/renderers/hf.py
+++ b/vllm/renderers/hf.py
@@ -466,7 +466,6 @@ def safe_apply_chat_template(
         chat_template=chat_template,
         chat_template_kwargs=kwargs,
     )
-    resolved_kwargs["return_dict"] = False
 
     try:
         return tokenizer.apply_chat_template(
diff --git a/vllm/renderers/params.py b/vllm/renderers/params.py
index 19555bba04b..d20038478de 100644
--- a/vllm/renderers/params.py
+++ b/vllm/renderers/params.py
@@ -66,7 +66,7 @@ class ChatParams:
         """The arguments to pass to `tokenizer.apply_chat_template`."""
         return merge_kwargs(
             self.chat_template_kwargs,
-            dict(chat_template=self.chat_template),
+            dict(chat_template=self.chat_template, return_dict=False),
         )