@article{areyougettingwhatyoupayforauditing,
  title = {Are You Getting What You Pay For? Auditing Model Substitution in LLM APIs},
  author = {Will Cai and Tianneng Shi and Xuandong Zhao and Dawn Song},
  year = {2025},
  eprint = {2504.04715},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2504.04715v1},
}