Update app.py

app.py

@@ -121,7 +121,7 @@ def get_response(system_message, chat_history, user_text, max_new_tokens=256, co
         generation_config=generator_conf,
         max_new_tokens=max_new_tokens,
         do_sample=True,
-        top_p=0.5,
+        top_p=0.25,
         repetition_penalty=1.2
     )