PEFT How to use DLNorb/dpo_base_model_stage2 with PEFT:
from peft import PeftModel
from transformers import AutoModelForCausalLM
base_model = AutoModelForCausalLM.from_pretrained("unsloth/qwen3-4b-instruct-2507-unsloth-bnb-4bit")
model = PeftModel.from_pretrained(base_model, "DLNorb/dpo_base_model_stage2") 
