@article{yinxiao2025railx,
  author={Yinxiao Feng and Tiancheng Chen and Yuchen Wei and Siyuan Shen and Shiju Wang and Wei Li and Kaisheng Ma and Torsten Hoefler},
  title={{RailX: A Flexible, Scalable, and Low-Cost Network Architecture for Hyper-Scale LLM Training Systems}},
  journal={arXiv:2507.18889},
  year={2025},
  month={Jul.},
  doi={10.48550/arXiv.2507.18889},
}