from diffusers import DiffusionPipeline

model_id = "runwayml/stable-diffusion-v1-5"
pipeline = DiffusionPipeline.from_pretrained(model_id)

prompt = "portrait photo of a old warrior chief"

pipeline = pipeline.to("cuda")

import torch

generator = torch.Generator("cuda").manual_seed(0)

image = pipeline(prompt, generator=generator).images[0]
image