Update app.py

app.py

@@ -154,7 +154,7 @@ class SQLiteVectorRetriever(BaseRetriever):
     def _get_relevant_documents(self, query, run_manager=None, **kwargs):
         return query_vector_db(query, self.top_k)
 
-llm = OpenAI(model="gpt-4o", openai_api_key=OPENAI_API_KEY, temperature=0)
+llm = OpenAI(model="gpt-4.1", openai_api_key=OPENAI_API_KEY, temperature=0)
 retriever = SQLiteVectorRetriever(top_k=5)
 qa_chain = RetrievalQA.from_chain_type(
     llm=llm,