Update app.py

app.py

@@ -64,9 +64,10 @@ def generate_natural_language_description(tags, api_key=None):
                     "content": f"Here are the tags: {tags}\nPlease generate a vivid, imaginative scene description.",
                 },
             ],
-            model="gpt-4",
+            model="gpt-4o",
         )
-        return response["choices"][0]["message"]["content"].strip()
+        # 通过属性访问 response 内容
+        return response.choices[0].message["content"].strip()
     except Exception as e:
         return f"GPT generation failed. Error: {e}"