Update main.py

main.py

@@ -147,7 +147,7 @@ def analyze_image_with_text(image_path: str, user_text: str) -> str:
         
         # 建立一個新的聊天模型實例，以確保狀態獨立
         chat_model = ChatGoogleGenerativeAI(
-            model="gemini-1.5-pro",
+            model="gemini-2.0-flash-exp",
             temperature=0.5,
             top_p=0.5,
             top_k=16