model_loader.py

import torch
from transformers import AutoModelForCausalLM
from janus.models import MultiModalityCausalLM, VLChatProcessor
import spaces

@spaces.GPU
def load_model_and_processor(model_path):
 vl_chat_processor: VLChatProcessor = VLChatProcessor.from_pretrained(model_path)
 tokenizer = vl_chat_processor.tokenizer

 vl_gpt: MultiModalityCausalLM = AutoModelForCausalLM.from_pretrained(
 model_path, trust_remote_code=True, torch_dtype=torch.bfloat16
 )
 vl_gpt = vl_gpt.to(torch.bfloat16).cuda().eval()

 return vl_gpt, vl_chat_processor