{
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  "metric": "sum(reference runtime) / sum(candidate runtime) over all 96 cases, no clipping or penalty",
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      "model": "GPT-6 Sol",
      "harness": "Codex",
      "method": "native_harness",
      "solved": 96,
      "speedup": 1.296317063690341,
      "bestOf": null
    },
    {
      "id": "native_harness-fable-5.1-high",
      "model": "Fable 5.1",
      "harness": "Claude Code",
      "method": "native_harness",
      "solved": 96,
      "speedup": 1.2482564164423193,
      "bestOf": null
    },
    {
      "id": "gpt-5.6-sol-high",
      "model": "GPT-5.6 Sol",
      "harness": "Best of 16",
      "method": "best_of_16",
      "solved": 96,
      "speedup": 1.236863444124005,
      "bestOf": {
        "5": {
          "speedup": 1.1630013304286517,
          "solved": 96,
          "winner": "output/pass-at-k-20260921/magnetic_diffusion_flash/gpt-5.6-sol-high/iterations/iteration_000000/slot_g0000_r0001.json"
        },
        "16": {
          "speedup": 1.236863444124005,
          "solved": 96,
          "winner": "output/pass-at-k-20260921/magnetic_diffusion_flash/gpt-5.6-sol-high/iterations/iteration_000000/slot_g0000_r0006.json"
        }
      }
    },
    {
      "id": "opus-5.5-high",
      "model": "Opus 5.5",
      "harness": "Best of 16",
      "method": "best_of_16",
      "solved": 96,
      "speedup": 1.06187722295597,
      "bestOf": {
        "5": {
          "speedup": 1.0041749944983154,
          "solved": 96,
          "winner": "output/pass-at-k-opus55-20260924/magnetic_diffusion_flash/opus-5.5-high/iterations/iteration_000000/slot_g0000_r0004.json"
        },
        "16": {
          "speedup": 1.06187722295597,
          "solved": 96,
          "winner": "output/pass-at-k-opus55-20260924/magnetic_diffusion_flash/opus-5.5-high/iterations/iteration_000000/slot_g0000_r0008.json"
        }
      }
    }
  ],
  "modelProvenanceNote": "The Fable 5.1 / Claude Code row retains the published model label. Its saved configuration names claude-sonnet-5; no captured agent session independently confirms that label."
}