@article{sftovertrainingpredictsrankinversionviae,
  title = {SFT Overtraining Predicts Rank Inversion via Entropy Collapse Under RLVR},
  author = {Siddharth Aphale and Kelly Liu},
  year = {2026},
  eprint = {2606.18487},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2606.18487},
}