Update app.py

app.py

@@ -7,7 +7,7 @@ from langchain.document_loaders import TextLoader
 from langchain.text_splitter import RecursiveCharacterTextSplitter
 
 # Load a Hugging Face model for Q&A
-model_name = "EleutherAI/gpt-neox-20b"  # You can choose a lighter model if needed
+model_name = "HuggingFaceH4/zephyr-7b-beta"  # You can choose a lighter model if needed
 tokenizer = AutoTokenizer.from_pretrained(model_name)
 model = AutoModelForCausalLM.from_pretrained(model_name)
 qa_pipeline = pipeline("text-generation", model=model, tokenizer=tokenizer, max_length=512)