diff --git a/app/router/gemini_routes.py b/app/router/gemini_routes.py
index 8769e33..a977632 100644
--- a/app/router/gemini_routes.py
+++ b/app/router/gemini_routes.py
@@ -329,7 +329,7 @@ async def verify_key(api_key: str, chat_service: GeminiChatService = Depends(get
                     parts=[{"text": "hi"}],
                 )
             ],
-            generation_config={"temperature": 0.7, "top_p": 1.0, "max_output_tokens": 10}
+            generation_config={"temperature": 0.7, "topP": 1.0, "maxOutputTokens": 10}
         )
         
         response = await chat_service.generate_content(
@@ -374,7 +374,7 @@ async def verify_selected_keys(
         try:
             gemini_request = GeminiRequest(
                 contents=[GeminiContent(role="user", parts=[{"text": "hi"}])],
-                generation_config={"temperature": 0.7, "top_p": 1.0, "max_output_tokens": 10}
+                generation_config={"temperature": 0.7, "topP": 1.0, "maxOutputTokens": 10}
             )
             await chat_service.generate_content(
                 settings.TEST_MODEL,
diff --git a/app/service/chat/gemini_chat_service.py b/app/service/chat/gemini_chat_service.py
index e3aae5f..2dfb7fd 100644
--- a/app/service/chat/gemini_chat_service.py
+++ b/app/service/chat/gemini_chat_service.py
@@ -161,7 +161,8 @@ def _build_payload(model: str, request: GeminiRequest) -> Dict[str, Any]:
     if request.generationConfig:
         if request.generationConfig.maxOutputTokens is None:
             # 如果未指定最大输出长度，则不传递该字段，解决截断的问题
-            request_dict["generationConfig"].pop("maxOutputTokens")
+            if "maxOutputTokens" in request_dict["generationConfig"]:
+                request_dict["generationConfig"].pop("maxOutputTokens")
 
     # 检查是否为TTS模型
     is_tts_model = "tts" in model.lower()