Update app.py

app.py

@@ -57,7 +57,7 @@ if pdf_obj and huggingface_api_token:
             
             # Usar un modelo gratuito de Hugging Face
             llm = HuggingFaceHub(
-                repo_id="meta-llama/Llama-2-7b-hf",
+                repo_id="bigscience/bloom-560m",
                 huggingfacehub_api_token=huggingface_api_token,
                 model_kwargs={"temperature": 0.5, "max_length": 512}
             )