Hi @AliceM!, I’m not sure I fully understand your question, looking at the model repo it looks like it’s a valid diffusers checkpoint. To use it you’d use code similar to the one that appears in the model card:
from diffusers import StableDiffusionPipeline
import torch
model_id = "andite/pastel-mix"
pipe = StableDiffusionPipeline.from_pretrained(model_id, torch_dtype=torch.float16)
pipe = pipe.to("cuda")
prompt = "hatsune_miku"
image = pipe(prompt).images[0]
image.save("./hatsune_miku.png")
Is that not working for you?