{
  "schema_version": 1,
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    {
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    {
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      "cache_mode": "cold",
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        "in100k_out1k"
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      "end": "2026-09-04T08:53:51.404862+00:00",
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      "calls_sha256": "dbc5e3e2ee4fcdda407beb11d36d80e8c20fcba708331865495f3bc6b2a331c1"
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    {
      "route": "doubleword-flex",
      "cache_mode": "warm",
      "input_group": "large",
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        "in100k_out1k"
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      "input_tokens": 1606128,
      "cost_usd": 0.030398570000000014,
      "cost_per_m_prompt": 0.018926617305719103,
      "start": "2026-09-04T08:54:01.800126+00:00",
      "end": "2026-09-04T08:56:18.876318+00:00",
      "source_sha256": "5db727abab47f0b79980f036c0c34b9d61e5a77d0d36b551db8166763a748d7d",
      "calls_sha256": "bd1a386e45176c9e0f0cd3e4e09cd62200fc4730ec0662f81db3be75833701e0"
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  ],
  "cost_method": "Doubleword costs use matched account-meter charge deltas divided by input tokens from separate calibration calls. Small calibration pools 1k and 10k shapes; large pools 100k shapes, each across output budgets. Applied to corresponding marked-run cells without assigning costs to individual calls.",
  "model": "DeepSeek V4 Flash (0731)",
  "model_identity_basis": "Archived experiment configuration; legacy rows lack model IDs.",
  "sources": [
    {
      "id": "original",
      "archive": "serving-1788459928/all.jsonl",
      "sha256": "5247b4b8ff0b6787a95463ed494c12a09d46466f85e508509b8ffba9976a4b9c",
      "rows": 12880,
      "excluded": {
        "unmarked_doubleword": 1840,
        "account_credit": 85
      },
      "included": 10955,
      "start": "2026-09-03T18:27:26+0000",
      "end": "2026-09-03T20:51:44+0000"
    },
    {
      "id": "marked",
      "archive": "serving-dw-marked/all.jsonl",
      "sha256": "e6f68d1aef83633b7585cbf9f518bb3ab7d35268fca8186233e8d33705a99c4b",
      "rows": 1840,
      "excluded": {},
      "included": 1840,
      "start": "2026-09-03T20:56:08+0000",
      "end": "2026-09-03T23:17:08+0000"
    },
    {
      "id": "auto_followup",
      "archive": "serving-auto-402-rerun/all.jsonl",
      "sha256": "9850b1a5d826329810a545a337b7901843396306ade86f6a71f2291014652a9f",
      "rows": 17,
      "excluded": {},
      "included": 17,
      "start": "2026-09-04T08:24:00+0000",
      "end": "2026-09-04T08:31:05+0000"
    }
  ],
  "included_rows": 12812,
  "calls_sha256": "e30dd477d54a6cf3288e060f869e43ef485baf05a1b6ae847bb45a45261ddf63",
  "decoded_sha256": "a85974cda7701a6028a852632a00ecbc559b384d933b4430881c800b44b61f70",
  "selection": "Original non-Doubleword routes plus marked Doubleword rerun. All account-credit 402 rows excluded. Auto follow-up shown separately.",
  "limitations": [
    "Controlled request shapes, not production traffic or task-quality evaluation.",
    "Doubleword was rerun later; time-of-day effects are not controlled across those runs.",
    "Cold requests contain unique nonces; only warm requests repeat identical prefixes.",
    "Quantization suffixes are discovery labels, not verified per-call constraints.",
    "Excluding credit errors changes denominators and leaves gaps in affected cells.",
    "Cost uses per-call charges where reported and separate Doubleword calibration intervals where available.",
    "Repeated calls are dependent observations; intervals are descriptive, not causal tests.",
    "No raw prompt, output, or error text is included in this public measurement bundle."
  ]
}