Update app.py

app.py

@@ -63,7 +63,7 @@ def main():
         #                    max_new_tokens=512,
         #                    temperature=0.1)
 
-        llm = CTransformers(model="openai-community/gpt2", model_type='gpt2')
+        llm = CTransformers(model="meta-llama/Meta-Llama-3-8B")
 
         qa = ConversationalRetrievalChain.from_llm(llm, retriever=docsearch.as_retriever())