Update utils.py

utils.py

@@ -209,7 +209,7 @@ def generate_answer(question) -> str:
     global chat_history, gpt_3_5_index
     gpt_3_5_chain = get_qa_chain(gpt_3_5_index)
     result = gpt_3_5_chain(
-        {"question": question, "chat_history": chat_history,"vectordbkwargs": {"search_distance": 0.8}})
+        {"question": question, "chat_history": chat_history,"vectordbkwargs": {"search_distance": 0.4}})
     print("REsult: " + str(result))
     chat_history = [(question, result["answer"])]
     sources = []