PEFT How to use Salesforce/RetailSim-GRPO-4B with PEFT:
from peft import PeftModel
from transformers import AutoModelForCausalLM
base_model = AutoModelForCausalLM.from_pretrained("google/gemma-3-4b-it")
model = PeftModel.from_pretrained(base_model, "Salesforce/RetailSim-GRPO-4B") 
