Update app.py

app.py

@@ -19,7 +19,7 @@ def format_prompt(message, history):
 
 
 def generate(
-    prompt, history, temperature=0.2, max_new_tokens=256, top_p=0.95, repetition_penalty=1.0,
+    prompt, history, temperature=0.2, max_new_tokens=512, top_p=0.95, repetition_penalty=1.0,
 ):
     temperature = float(temperature)
     if temperature < 1e-2: