@article{stepwisecreditassignmentforgrpoonflowmat,
  title = {Stepwise Credit Assignment for GRPO on Flow-Matching Models},
  author = {Yash Savani and Branislav Kveton and Yuchen Liu and Yilin Wang and Jing Shi and Subhojyoti Mukherjee and Nikos Vlassis and Krishna Kumar Singh},
  year = {2026},
  eprint = {2603.28718},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2603.28718},
}