@article{sparrowsparserolloutforstableandefficien,
  title = {Sparrow: Sparse Rollout for Stable and Efficient Long-context RL of Large Language Models},
  author = {Yang Zhou and Ranajoy Sadhukhan and Zhaofeng Sun and Zhuoming Chen and Souvik Kundu and Saket Dingliwal and Sai Muralidhar Jayanthi and Aram Galstyan and Haizhong Zheng and Beidi Chen},
  year = {2026},
  eprint = {2606.08446},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2606.08446},
}