Update app.py

app.py

@@ -30,7 +30,7 @@ async def generate(input_text):
 
     # Initialize the standard client
     client = genai.Client(api_key=GEMINI_API_KEY)
-    model_id = "gemini-flash-latest"  # Ensure this is a valid model ID for your tier
+    model_id = "gemini-2.5-flash"  # Ensure this is a valid model ID for your tier
 
     train_tool = types.Tool(
         function_declarations=[