@article{vdarrouteradaptivellmsroutingviaverbaliz,
  title = {VDAR-Router: Adaptive LLMs Routing via Verbalized Query Difficulty Analysis Retrieval},
  author = {Yu-Chien Tang and Jun-Chen Hung and Wen-Chih Peng and An-Zi Yen},
  year = {2026},
  eprint = {2607.18098},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2607.18098},
}