@article{multimodalrewardhackinginreinforcementle,
  title = {Multimodal Reward Hacking in Reinforcement Learning},
  author = {Jiayu Yao and Yiwei Wang and Anmeng Zhang and Zhe Sun and Songsong Wang and Lingrui Mei and Yuyao Ge and Shenghua Liu},
  year = {2026},
  eprint = {2607.09492},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2607.09492},
}