diff --git a/python-api/app/ai/providers/volcengine_provider.py b/python-api/app/ai/providers/volcengine_provider.py
index 515210e..dfa9122 100644
--- a/python-api/app/ai/providers/volcengine_provider.py
+++ b/python-api/app/ai/providers/volcengine_provider.py
@@ -181,12 +181,7 @@ class VolcengineProvider(LLMProvider):
             if "reasoning_effort" in kwargs:
                 request_params["extra_body"] = {"reasoning_effort": kwargs["reasoning_effort"]}
 
-            # 豆包系列模型不支持 response_format.type="json_object"
-            # 仅对兼容模型（如 DeepSeek、GPT 系列）启用
-            if (
-                kwargs.get("response_format") == "json_object"
-                and "doubao" not in (model_id or "").lower()
-            ):
+            if kwargs.get("response_format") == "json_object":
                 request_params["response_format"] = {"type": "json_object"}
 
             # 调用 API
diff --git a/python-api/app/services/script_service.py b/python-api/app/services/script_service.py
index 4b07783..3f2f488 100644
--- a/python-api/app/services/script_service.py
+++ b/python-api/app/services/script_service.py
@@ -71,13 +71,13 @@ class ScriptService:
         )
 
         # 调用 AI 生成
+        # 注意：system prompt 中已要求"只输出纯 JSON"，不依赖 response_format 参数
         result = await model_router.generate(
             prompt=user_prompt,
             system_prompt=system_prompt,
             model_id=model,
             task_type="script",
             temperature=0.7,
-            response_format="json_object",
         )
 
         if not result.content or not result.content.strip():