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yresearch/
swd-medium-6-steps

Name: swd-medium-6-steps
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Scale-wise Distillation SD3.5 Medium

Scale-wise Distillation (SwD) is a novel framework for accelerating diffusion models (DMs) by progressively increasing spatial resolution during the generation process.
SwD achieves significant speedups (2.5× to 10×) compared to full-resolution models while maintaining or even improving image quality.

Project page: https://yandex-research.github.io/swd
GitHub: https://github.com/yandex-research/swd
Demo: https://huggingface.co/spaces/dbaranchuk/Scale-wise-Distillation

Usage

Upgrade to the latest version of the 🧨 diffusers and 🧨 peft

pip install -U diffusers
pip install -U peft

and then you can run

import torch
from diffusers import StableDiffusion3Pipeline
from peft import PeftModel

pipe = StableDiffusion3Pipeline.from_pretrained("stabilityai/stable-diffusion-3.5-medium",
                                                torch_dtype=torch.float16,
                                                custom_pipeline="quickjkee/swd_pipeline").to("cuda")
lora_path = "yresearch/swd-medium-6-steps"
pipe.transformer = PeftModel.from_pretrained(
    pipe.transformer,
    lora_path,
)

prompt = "Cute winter dragon baby, kawaii, Pixar, ultra detailed, glacial background, extremely realistic."
sigmas = [1.0000, 0.9454, 0.8959, 0.7904, 0.7371, 0.6022, 0.0000]
scales = [32, 48, 64, 80, 96, 128]

image = pipe(
    prompt,
    sigmas=sigmas,
    timesteps=torch.tensor(sigmas[:-1], device="cuda") * 1000,
    scales=scales,
    guidance_scale=1.0,
    height=int(scales[0] * 8),
    width=int(scales[0] * 8),
    max_sequence_length=512,
).images[0]

Citation

bibtex

@inproceedings{
    starodubcev2026scalewise,
    title={Scale-wise Distillation of Diffusion Models},
    author={Nikita Starodubcev and Ilya Drobyshevskiy and Denis Kuznedelev and Artem Babenko and Dmitry Baranchuk},
    booktitle={The Fourteenth International Conference on Learning Representations},
    year={2026},
    url={https://openreview.net/forum?id=Z06LNjqU1g}
}