PEFT How to use Experimentlab/olmo2-7b-phd-pure-math with PEFT:
from peft import PeftModel
from transformers import AutoModelForCausalLM
base_model = AutoModelForCausalLM.from_pretrained("allenai/OLMo-2-1124-7B-Instruct")
model = PeftModel.from_pretrained(base_model, "Experimentlab/olmo2-7b-phd-pure-math") 
