{
  "title": "FabricationGuard v2 — L31 cross-task hallucination probe (Qwen3.6-27B)",
  "author": "caiovicentino",
  "type": "probe-result",
  "license": "apache-2.0",
  "model_id": "Qwen/Qwen3.6-27B-Instruct",
  "claim": "Linear probe on layer 31 residual stream detects confident hallucinations across tasks. HaluEval within 0.90, SimpleQA cross-task 0.88. −88% confident-wrong reduction in SimpleQA. ~1ms sklearn p95 inference.",
  "numbers": {
    "auroc_within_haluval": 0.9,
    "auroc_cross_simpleqa": 0.88,
    "conf_wrong_reduction_simpleqa": -0.88,
    "sklearn_p95_inference_ms": 1.0,
    "layer": 31,
    "position": "end_question"
  },
  "artifacts": [
    "probe.joblib",
    "scaler.joblib",
    "metadata.json"
  ],
  "methodology_check": null,
  "reproduces": null,
  "schema_version": 1,
  "created_at": "2026-05-11T01:02:45Z",
  "manifest_sha256": "8d5df2d5d52521632e01d2e2617c6d6b328b85c756b68e4d2c70a19ba31be9fc",
  "hf_repo_id": "openinterp/fabricationguard-qwen36-27b-l31-v2",
  "hf_url": "https://huggingface.co/openinterp/fabricationguard-qwen36-27b-l31-v2",
  "doi": null,
  "paper_url": "https://openinterp.org/products/fabricationguard"
}