@article{zheng2026polar,
  title={POLAR-Bench: A Diagnostic Benchmark for Privacy-Utility Trade-offs in LLM Agents},
  author={Zheng, Qiaoyuan and Yang, Yiqu and Gao, Qi and Schlag, Imanol},
  journal={arXiv preprint arXiv:2605.19127},
  year={2026}
}