@article{cortextokenlevelhallucinationdetectionin,
  title = {CORTEX: Token-Level Hallucination Detection in RAG via Comparative Internal Representations},
  author = {Kazuaki Furumai and Shuichiro Haruta and Kazunori Matsumoto and Daisuke Kamisaka},
  year = {2026},
  eprint = {2606.31033},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2606.31033},
}