@article{tokenlevelpolicyoptimizationlinkinggroup,
  title = {Token-Level Policy Optimization: Linking Group-Level Rewards to Token-Level Aggregation via Sequence-Level Likelihood},
  author = {Xingyu Lin and Yilin Wen and Du Su and Jinchang Hou and En Wang and Wenbin Liu and Chenfu Bao and Zhonghou Lv},
  year = {2026},
  eprint = {2604.12736},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2604.12736},
}