{
  "name": "gemma4-quant-regime-study",
  "version": "1.0.1",
  "released": "2026-08-11",
  "series": "sequel to gemma4-mtp-quality-study (DOI 10.5281/zenodo.21860461)",
  "public_boundary": "verbatim prompts, generated outputs, raw row-level records, and local paths excluded; identified by SHA-256",
  "runs": {
    "suites": [
      "smoke100",
      "core500_candidate"
    ],
    "cells": 4,
    "primary_runs": 8,
    "repeat_runs": 4,
    "control_runs": 1,
    "rows": 2900,
    "errored": 0
  },
  "headline": {
    "interaction_delta_of_deltas": 0.03,
    "ci95_stem_clustered": [
      0.01,
      0.052
    ],
    "ci95_task_iid": [
      0.008,
      0.052
    ],
    "cross_regime_exact_match_rate": [
      0.232,
      0.32
    ],
    "repeat_determinism": "100/100 x4 cells (Smoke-100)",
    "num_ctx_control": "100/100 byte-identical (12B PTQ)"
  },
  "review": "3 independent adversarial reviewers (statistics / consistency / scope), 2026-08-10; all MAJOR findings remediated in v1.0.1"
}