@article{pruninglongchainofthoughtoflargereasonin,
  title = {Pruning Long Chain-of-Thought of Large Reasoning Models via Small-Scale Preference Optimization},
  author = {Bin Hong and Jiayu Liu and Kai Zhang and Jianwen Sun and Mengdi Zhang and Zhenya Huang},
  year = {2025},
  eprint = {2508.10164},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2508.10164},
}