Update app.py

app.py

@@ -579,7 +579,7 @@ def process_long_running_task(messages, message_type='text', image_data=None):
                 
                 logging.info("开始调用图像识别模型")
                 image_response = client.chat.completions.create(
-                    model="gpt-4o-mini",
+                    model="gpt-4.1-mini",
                     messages=image_messages,
                     max_tokens=300,
                     timeout=60
@@ -603,7 +603,7 @@ def process_long_running_task(messages, message_type='text', image_data=None):
             try:
                 logging.info("开始处理文本消息")
                 response = client.chat.completions.create(
-                    model="o3-mini",
+                    model="gpt-4.1-mini",
                     messages=messages,
                     tools=TOOLS,
                     tool_choice="auto",