@article{ren2025grat,
  title={Grouping First, Attending Smartly: Training-Free Acceleration for Diffusion Transformers},
  author={Ren, Sucheng and Yu, Qihang and He, Ju and Yuille, Alan and Chen, Liang-Chieh},
  journal={arXiv preprint arXiv:2505.14687},
  year={2025}
}