@inproceedings{liu-etal-2026-costbench,
    title = "{C}ost{B}ench: Evaluating Multi-Turn Cost-Optimal Planning and Adaptation in Dynamic Environments for {LLM} Tool-Use Agents",
    author = "Liu, Jiayu  and
      Qian, Cheng  and
      Su, Zhaochen  and
      Zong, Qing  and
      Huang, Shijue  and
      He, Bingxiang  and
      Fung, Yi R.",
    editor = "Liakata, Maria  and
      Moreira, Viviane P.  and
      Zhang, Jiajun  and
      Jurgens, David",
    booktitle = "Proceedings of the 64th Annual Meeting of the {A}ssociation for {C}omputational {L}inguistics (Volume 1: Long Papers)",
    month = jul,
    year = "2026",
    address = "San Diego, California, United States",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/ingest-acl/2026.acl-long.584/",
    pages = "12826--12858",
    ISBN = "979-8-89176-390-6"
}