Update model

app.py

@@ -203,7 +203,7 @@ def create_qa_chain(vectordb, groq_api_key, k=4):
     try:
         with st.spinner('Creating QA chain...'):
             retriever = vectordb.as_retriever(search_kwargs={'k': k})
-            llm = ChatGroq(api_key=groq_api_key, temperature=0)
+            llm = ChatGroq(model = "llama-3.3-70b-versatile", api_key=groq_api_key, temperature=0)
             
             prompt_messages = [
                 ("system", """You are a helpful AI assistant who provides accurate answers based on the given context.