Update app.py

app.py

@@ -25,7 +25,7 @@ os.environ['LANGCHAIN_API_KEY'] = 'lsv2_pt_ce80aac3833643dd893527f566a06bf9_667d
 
 @st.cache_resource
 def load_model():
-    model_name = "gpt2"
+    model_name = "facebook/blenderbot-400M-distill"
     tokenizer = AutoTokenizer.from_pretrained(model_name)
     model = AutoModelForCausalLM.from_pretrained(model_name)
     return model, tokenizer