@article{pairprefixawareinternalrewardmodelformul,
  title = {PAIR: Prefix-Aware Internal Reward Model for Multi-Turn Agent Optimization},
  author = {Wonjoong Kim and Yeonjun In and Sangwu Park and Dongha Lee and Chanyoung Park},
  year = {2026},
  eprint = {2605.17877},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2605.17877},
}