PEFT How to use Amarsaish/pythia_12b with PEFT:
from peft import PeftModel
from transformers import AutoModelForCausalLM
base_model = AutoModelForCausalLM.from_pretrained("OpenAssistant/oasst-sft-4-pythia-12b-epoch-3.5")
model = PeftModel.from_pretrained(base_model, "Amarsaish/pythia_12b")