@article{margrpostabilizedgrpoforardiffusionhybri,
  title = {MAR-GRPO: Stabilized GRPO for AR-diffusion Hybrid Image Generation},
  author = {Xiaoxiao Ma and Jiachen Lei and Tianfei Ren and Jie Huang and Siming Fu and Aiming Hao and Jiahong Wu and Xiangxiang Chu and Feng Zhao},
  year = {2026},
  eprint = {2604.06966},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2604.06966},
}