Update tools.py

tools.py

@@ -150,7 +150,7 @@ def query_image(query: str, image_url: str) -> str:
     try:
         client = OpenAI()
         response = client.responses.create(
-            model="gpt-4.1-nano",
+            model="gpt-4o-mini",
             input=[
                 {
                     "role": "user",