{
  "sphragis_version": "0.1.0",
  "generated_at": "2026-07-26T22:50:16.638557+00:00",
  "reference": {
    "endpoint": "http://127.0.0.1:8080/v1",
    "model": "ref"
  },
  "candidate": {
    "endpoint": "http://127.0.0.1:8081/v1",
    "model": "cand"
  },
  "pack": {
    "name": "/root/pack_v2.jsonl",
    "n_tasks": 2800,
    "sha256": "2de27099bbb15bab4f7b35599b215f038fdb68b3f5f4e1cda1a464f9dd18e14e"
  },
  "overall": "PASS",
  "claim": "For every axis, the candidate was demonstrated non-inferior to the reference: the one-sided 95% upper confidence bound on the accuracy regression is below the margin of 3.0%.",
  "axes": [
    {
      "axis": "arithmetic",
      "n": 1400,
      "counts": {
        "both_correct": 1205,
        "ref_only": 5,
        "cand_only": 6,
        "both_wrong": 184
      },
      "acc_reference": 0.864286,
      "acc_candidate": 0.865,
      "regression_d": -0.000714,
      "d_ci": [
        -0.005714,
        0.004286
      ],
      "d_upper_bound": 0.002857,
      "p_regression": 0.72558594,
      "p_regression_holm": 1.0,
      "p_improvement": 0.5,
      "improved": false,
      "mde_at_power": 0.005886,
      "n_needed_for_margin": 204,
      "verdict": "PASS",
      "reason": "non_inferior_within_margin"
    },
    {
      "axis": "instruction",
      "n": 600,
      "counts": {
        "both_correct": 394,
        "ref_only": 4,
        "cand_only": 2,
        "both_wrong": 200
      },
      "acc_reference": 0.663333,
      "acc_candidate": 0.66,
      "regression_d": 0.003333,
      "d_ci": [
        -0.005,
        0.011667
      ],
      "d_upper_bound": 0.01,
      "p_regression": 0.34375,
      "p_regression_holm": 1.0,
      "p_improvement": 0.890625,
      "improved": false,
      "mde_at_power": 0.01,
      "n_needed_for_margin": 204,
      "verdict": "PASS",
      "reason": "non_inferior_within_margin"
    },
    {
      "axis": "knowledge",
      "n": 400,
      "counts": {
        "both_correct": 387,
        "ref_only": 0,
        "cand_only": 0,
        "both_wrong": 13
      },
      "acc_reference": 0.9675,
      "acc_candidate": 0.9675,
      "regression_d": 0.0,
      "d_ci": [
        0.0,
        0.0
      ],
      "d_upper_bound": 0.0,
      "p_regression": 1.0,
      "p_regression_holm": 1.0,
      "p_improvement": 1.0,
      "improved": false,
      "mde_at_power": null,
      "n_needed_for_margin": 204,
      "verdict": "PASS",
      "reason": "non_inferior_within_margin"
    },
    {
      "axis": "reasoning",
      "n": 400,
      "counts": {
        "both_correct": 381,
        "ref_only": 0,
        "cand_only": 0,
        "both_wrong": 19
      },
      "acc_reference": 0.9525,
      "acc_candidate": 0.9525,
      "regression_d": 0.0,
      "d_ci": [
        0.0,
        0.0
      ],
      "d_upper_bound": 0.0,
      "p_regression": 1.0,
      "p_regression_holm": 1.0,
      "p_improvement": 1.0,
      "improved": false,
      "mde_at_power": null,
      "n_needed_for_margin": 204,
      "verdict": "PASS",
      "reason": "non_inferior_within_margin"
    }
  ],
  "params": {
    "margin": 0.03,
    "alpha": 0.05,
    "n_floor": 30,
    "power": 0.8,
    "n_boot": 4000,
    "seed": 0
  }
}