updated model name

app.py

@@ -37,7 +37,7 @@ if "model_name" not in st.session_state:
 
 @st.cache_resource
 def get_pipeline(model_name):
-    model_name = "google/flan-t5-small"
+    model_name = "gpt2-medium"
     device = 0 if torch.cuda.is_available() else -1
     # if True or model_name == "meta-llama/Llama-2-7b-chat-hf" or model_name == "mistralai/Mistral-7B-Instruct-v0.2":
     #     chatbot = pipeline(model=model_name, task="conversational", device=device)#, model_kwargs=model_kwargs)