Update app.py

app.py

@@ -119,7 +119,7 @@ def display_conversation(history):
 
 def main():
      # Add a sidebar for model selection
-    model_options = ["MBZUAI/LaMini-T5-738M", "google/flan-t5-base", "google/flan-t5-small"]
+    model_options = [ "meta-llama/Llama-2-13b-chat-hf","MBZUAI/LaMini-T5-738M", "google/flan-t5-base", "google/flan-t5-small"]
     selected_model = st.sidebar.selectbox("Select Model", model_options)
     
     st.markdown("<h1 style='text-align: center; color: blue;'>Custom PDF Chatbot 🦜📄 </h1>", unsafe_allow_html=True)