@article{breakingmodellockincostefficientzeroshot,
  title = {Breaking Model Lock-in: Cost-Efficient Zero-Shot LLM Routing via a Universal Latent Space},
  author = {Cheng Yan and Wuyang Zhang and Zhiyuan Ning and Fan Xu and Ziyang Tao and Lu Zhang and Bing Yin and Yanyong Zhang},
  year = {2026},
  eprint = {2601.06220},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2601.06220},
}