Update app.py

app.py

@@ -61,7 +61,7 @@ def analyze_image(image, question, api_key):
         base64_image = encode_image_to_base64(image)
         
         completion = client.chat.completions.create(
-            model="gpt-4-vision-preview",
+            model="gpt-4o-mini",
             messages=[
                 {
                     "role": "user",