{
  "scope": "Solver inference only; not subscription cash, excludes post-hoc judges and local infrastructure",
  "pricing_verified": "2026-09-06",
  "sources": {
    "astra": "https://developers.openai.com/api/docs/models/gpt-6-astra",
    "claude": "https://platform.claude.com/docs/en/about-claude/pricing",
    "fable": "https://platform.claude.com/docs/en/models/fable-5-1/overview"
  },
  "astra_rates_per_million": {
    "input": 10,
    "cache_read": 1,
    "cache_write": 12.5,
    "output": 50
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  "claude_rates_columns": [
    "input",
    "cache_read",
    "cache_write_5m",
    "cache_write_1h",
    "output"
  ],
  "claude_rates_per_million": {
    "claude-fable-5-1": [
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      0.25,
      12.5,
      20,
      50
    ],
    "claude-opus-5": [
      5,
      0.5,
      6.25,
      10,
      25
    ],
    "claude-opus-4-8": [
      5,
      0.5,
      6.25,
      10,
      25
    ],
    "claude-haiku-4-5-20251001": [
      1,
      0.1,
      1.25,
      2,
      5
    ]
  },
  "groups": [
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        "se": 4.229534846712801
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    {
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        "mean": 9.058763293478261,
        "se": 0.869992849218678
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      "long_context_upper_usd": {
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        "se": 0.869992849218678
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      "raw_tokens": {
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      "solver_fallback_runs": 2
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  ],
  "totals": {
    "astra": {
      "runs": 115,
      "usd": 225.037978,
      "long_context_upper_usd": 419.41506,
      "raw_tokens": 97043705,
      "solver_hours": 12.00303861111111
    },
    "fable": {
      "runs": 115,
      "usd": 1159.1011435,
      "long_context_upper_usd": 1159.1011435,
      "raw_tokens": 738373965,
      "solver_hours": 58.74556388888889
    }
  },
  "limitations": [
    "Astra input includes cache reads; output includes reasoning. Neither is counted twice.",
    "Astra records zero cache writes. Per-request input sizes are absent in ephemeral CLI logs.",
    "Astra central estimate assumes standard short-context rates, no Batch/Flex/Fast discounts or premiums.",
    "Astra bound applies 2x input/cache and 1.5x output to all usage in runs exceeding 272k cumulative input; actual per-request premiums may be lower.",
    "Claude includes observed 5m/1h caches, Fable, Opus 5, Opus 4.8 and auxiliary Haiku usage.",
    "One internal Opus 5 receipt lacks a model-specific cache TTL; its list cost matches the 5m rate and is retained.",
    "CLI auxiliary accounting differs. Estimates cover exposed receipts, not an independently observed API invoice."
  ],
  "ledger_sha256": "7fa4c18e7c8045b74a9b06527d30c38a0d652d2f7fbeff3029e0e4a3fdf15883",
  "note": "Per-run estimates are in runs.json (estimated_usd, long_context_upper_usd, raw_tokens, token_usage). Judging is excluded."
}