Update app.py

app.py

@@ -51,8 +51,8 @@ print(f"Se han indexado {len(split_docs)} chunks.")
 
 qa_chain = RetrievalQA.from_chain_type(
     llm=ChatOpenAI(temperature=0, model_name="gpt-3.5-turbo"),
-    chain_type="stuff",
-    retriever=vectorstore.as_retriever()
+    chain_type="map_reduce",
+    retriever = vectorstore.as_retriever(search_kwargs={"k": 10})  # más chunks
 )
 
 @app.get("/", response_class=HTMLResponse)