{
  "schema_version": 1,
  "decision": "promoted",
  "model_sha256": "c90e0fc65dddbe4107b1b417d771c3be188c87197e89cf4b14415f56abc866f0",
  "config_sha256": "873e3556509b0da06e29654ba00d4944888d4b5e8a33afde25f7eb27d321e980",
  "blend_sha256": "e53a6bb5e890d7e3368053302189766c3ef68d2eb7887152ece1ea9eac4f64d5",
  "blend": {
    "generation_2_strength": 0.0625,
    "generation_3_strength": 0.1875
  },
  "runtime": {
    "implementation": "DFlash MLX",
    "revision": "dcf93d3d07aadc5a2e74fab7e44c63209d9f37a3",
    "hardware": "Apple M4 Max",
    "target": "calibrated Qwen3.8-27B MXFP4 runtime",
    "draft_quantization": "none"
  },
  "exact_parity": {
    "token_match": true,
    "acceptance_ratio": 0.7109375,
    "baseline_tps_diagnostic": 21.961506855085254,
    "dflash_tps_diagnostic": 33.51110051912492
  },
  "paired_acceptance": [
    {
      "gate": "legacy24",
      "control_mean_acceptance": 0.6712239583333334,
      "candidate_mean_acceptance": 0.671875,
      "mean_delta": 0.0006510416666666297,
      "candidate_wins": 5,
      "ties": 14,
      "losses": 5
    },
    {
      "gate": "fable-heldout25",
      "control_mean_acceptance": 0.6471875,
      "candidate_mean_acceptance": 0.64921875,
      "mean_delta": 0.002031249999999929,
      "candidate_wins": 11,
      "ties": 5,
      "losses": 9
    }
  ],
  "training_capture": {
    "cycle_count": 11273,
    "prompt_group_count": 127,
    "legacy_cycles": 1981,
    "legacy_prompts": 24,
    "fable_training_cycles": 9292,
    "fable_training_prompts": 103,
    "fable_heldout_prompts_excluded": 25,
    "teacher_target_topk": 64,
    "teacher_precision": "calibrated MXFP4 target runtime"
  },
  "training_metrics": {
    "best_validation_prefix_accuracy": 0.793221252777784,
    "best_validation_top1_accuracy": 0.871487798557914
  },
  "non_claims": [
    "Acceptance metrics do not prove broad task quality or natural-EOS behavior.",
    "Throughput and memory are diagnostic because thermal pressure was not controlled.",
    "The Fable held-out prompts come from the same eval shard as Fable training prompts.",
    "No trace data or capture cycles are included in this model repository."
  ]
}