@article{onthenondecouplingofsupervisedfinetuning,
  title = {On the Non-decoupling of Supervised Fine-tuning and Reinforcement Learning in Post-training},
  author = {Xueyan Niu and Bo Bai and Wei Han and Weixi Zhang},
  year = {2026},
  eprint = {2601.07389},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2601.07389},
}