PEFT How to use aamish-ahmad/behaviortune-v1-1-r1-adapter with PEFT:
from peft import PeftModel
from transformers import AutoModelForCausalLM
base_model = AutoModelForCausalLM.from_pretrained("Qwen/Qwen3-4B-Instruct-2507")
model = PeftModel.from_pretrained(base_model, "aamish-ahmad/behaviortune-v1-1-r1-adapter") 
