@misc{chen2026think,
  title={Think Deep, Not Just Long: Measuring LLM Reasoning Effort via Deep-Thinking Tokens},
  author={Wei-Lin Chen and Liqian Peng and Tian Tan and Chao Zhao and Blake JianHang Chen and Ziqian Lin and Alec Go and Yu Meng},
  year={2026},
  eprint={2602.13517},
  archivePrefix={arXiv},
  primaryClass={cs.CL},
  url={https://arxiv.org/abs/2602.13517}
}