@article{sapostepalignedpolicyoptimizationforreas,
  title = {SAPO: Step-Aligned Policy Optimization for Reasoning-Based Generative Recommendation},
  author = {Zaiyi Zheng and Guanghui Min and Yaochen Zhu and Liang Wu and Liangjie Hong and Chen Chen and Jundong Li},
  year = {2026},
  eprint = {2605.17648},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2605.17648},
}