@article{predictiveauditingofhiddentokensinllmapi,
  title = {Predictive Auditing of Hidden Tokens in LLM APIs via Reasoning Length Estimation},
  author = {Ziyao Wang and Guoheng Sun and Yexiao He and Zheyu Shen and Bowei Tian and Ang Li},
  year = {2025},
  eprint = {2508.00912},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2508.00912},
}