@article{promptrlpromptmattersinrlforflowbasedima,
  title = {PromptRL: Prompt Matters in RL for Flow-Based Image Generation},
  author = {Fu-Yun Wang and Han Zhang and Michael Gharbi and Hongsheng Li and Taesung Park},
  year = {2026},
  eprint = {2602.01382},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2602.01382},
}