app.py

import os
from transformers import AutoTokenizer, AutoModelForCausalLM

model_name = "openai-community/gpt-oss-20b"
hf_token = os.getenv("HF_TOKEN")  # Reads from Space secret

tokenizer = AutoTokenizer.from_pretrained(model_name, use_auth_token=hf_token)
model = AutoModelForCausalLM.from_pretrained(model_name, use_auth_token=hf_token)