PEFT How to use while-ai/paper-zero-rl-format-reward-4b with PEFT:
from peft import PeftModel
from transformers import AutoModelForCausalLM
base_model = AutoModelForCausalLM.from_pretrained("Qwen/Qwen3.5-4B-Base")
model = PeftModel.from_pretrained(base_model, "while-ai/paper-zero-rl-format-reward-4b") 
