Update app.py

app.py

@@ -369,7 +369,8 @@ class ImageAnalysisTool(Tool):
             }
             
             payload = {
-                "model": "gpt-4o-mini-2024-07-18",  # Vision-capable model
+                #"model": "gpt-4o-mini-2024-07-18",  # Vision-capable model
+                "model": "o4-mini",
                 "messages": [
                     {
                         "role": "user",