@article{thetooloveruseillusionwhydoesllmpreferex,
  title = {The Tool-Overuse Illusion: Why Does LLM Prefer External Tools over Internal Knowledge?},
  author = {Yirong Zeng and Shen You and Yufei Liu and Qunyao Du and Xiao Ding and Yutai Hou and Yuxian Wang and Wu Ning and Haonan Song and Dandan Tu and Bibo Cai and Ting Liu},
  year = {2026},
  eprint = {2604.19749},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2604.19749},
}