Update app.py

app.py

@@ -34,7 +34,7 @@ def generate_with_history(input_text, history):
 
     try:
         response = client_genai.models.generate_content(
-            model="gemini-2.0-flash-001",
+            model="gemini-flash-lite-latest",
             contents=contents,
             config=config,
         )