Update app.py

app.py

@@ -27,7 +27,7 @@ def chat(message, history):
   else:
     bot_input_ids =  new_user_input_ids
 
-  chat_history_ids = model.generate(bot_input_ids, max_length=1000, pad_token_id=tokenizer.eos_token_id)
+  chat_history_ids = model.generate(bot_input_ids, max_length=1000, do_sample=True, top_p=0.9, temperature=0.8, pad_token_id=tokenizer.eos_token_id)
   response = tokenizer.decode(chat_history_ids[:, bot_input_ids.shape[-1]:][0], skip_special_tokens=True)
     
   history.append((message, response))