{
  "id": "2608.29956",
  "title": "Detecting Hidden Chain-of-Thought in Large Language Models with Linguistic, Behavioral, and Mechanistic Indicators",
  "authors": "Armaan Singh, Ryan Trinh Le, Jasmine Kaur, Abdullah Sultan, Edward Lue Chee Lip, Kiran Nijjer, Adnan Ahmed, Vasu Sharma",
  "first_public": "2026-08-30",
  "venue": "arXiv",
  "arxiv": "2608.29956",
  "paper_url": "https://arxiv.org/abs/2608.29956",
  "lens": [
    "analysis"
  ],
  "representation": [
    "hidden-state"
  ],
  "computation": [
    "depth-wise"
  ],
  "training": [
    "analysis-only"
  ],
  "questions": [
    "evaluation",
    "interpretability",
    "limitations"
  ],
  "evidence": [
    "empirical",
    "probing",
    "boundary"
  ],
  "modality": [
    "language",
    "symbolic"
  ],
  "summary": "Compares behavior under neutral, explicit-CoT, and no-CoT prompts using linguistic and internal-state measurements. Its score measures resemblance to CoT behavior, not direct evidence of a hidden reasoning trace; calibration controls expose important confounds.",
  "provenance": "Primary-source literature search, 2026-10-18",
  "added_at": "2026-10-18",
  "author_names": [
    "Armaan Singh",
    "Ryan Trinh Le",
    "Jasmine Kaur",
    "Abdullah Sultan",
    "Edward Lue Chee Lip",
    "Kiran Nijjer",
    "Adnan Ahmed",
    "Vasu Sharma"
  ],
  "record_url": "https://latent-implicit-thinking.github.io/papers/2608.29956/",
  "legacy_record_url": "https://latent-implicit-thinking.github.io/papers/#paper-2608-29956",
  "citation_date": "2026-08-30",
  "json_url": "https://latent-implicit-thinking.github.io/papers/2608.29956/record.json",
  "markdown_url": "https://latent-implicit-thinking.github.io/papers/2608.29956/index.md",
  "bibtex_url": "https://latent-implicit-thinking.github.io/papers/2608.29956/citation.bib",
  "csl_url": "https://latent-implicit-thinking.github.io/papers/2608.29956/citation.csl.json"
}