@inproceedings{chen-etal-2025-better,
    title = "Better Red Teaming via Searching with Large Language Model",
    author = "Chen, Yongkang  and
      Zhao, Chongyang  and
      Jianwentian, Jianwentian  and
      Cao, Guiling  and
      Li, Hu  and
      Kuang, Xiaohui",
    editor = "Che, Wanxiang  and
      Nabende, Joyce  and
      Shutova, Ekaterina  and
      Pilehvar, Mohammad Taher",
    booktitle = "Findings of the Association for Computational Linguistics: ACL 2025",
    month = jul,
    year = "2025",
    address = "Vienna, Austria",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/transition-to-people-yaml/2025.findings-acl.257/",
    doi = "10.18653/v1/2025.findings-acl.257",
    pages = "4968--4984",
    ISBN = "979-8-89176-256-5",
    abstract = "The safe deployment of large language models (LLMs) necessitates comprehensive safety evaluations through red teaming. However, existing methods face challenges in managing semantic intricacies and optimizing the efficiency of the search process. To overcome these limitations, we propose Better Red Teaming (BRT){---}an innovative framework that reconceptualizes test case generation as a strategic planning problem, leveraging Monte Carlo Tree Search (MCTS). A notable advancement of our approach is the incorporation of LLMs as world models, enabling the prediction of state transitions and simulation of long-term outcomes throughout the search process. By jointly optimizing objectives related to conditional mutual information and diversity, we improve the world model{'}s capacity to follow actions while maintaining output diversity. Extensive experiments conducted across a range of LLM architectures demonstrate that BRT achieves state-of-the-art attack success rates without sacrificing computational efficiency."
}