@article{evaluatingthehiddencostsofpersonalizatio,
  title = {Evaluating the Hidden Costs of Personalization in Large Language Models},
  author = {Yumeng Wang and Yuchen Wu and Cheng Qian and Zhiyuan Fan and Hyeonjeong Ha and Shujin Wu and Jiayu Liu and Heng Ji and Ge Wang},
  year = {2026},
  eprint = {2608.28833},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2608.28833},
}