{
  "method": "Unique message IDs; each actual model priced separately; correct one-hour cache rate; includes automatic security review calls; preserves published plan allowance assumptions. ZCode cost and tokens are the arithmetic mean of the two sessions whose shared branch was graded. The separate third run is excluded; the score and wall time remain those of the shared branch.",
  "pricing_source": "https://platform.claude.com/docs/en/about-claude/pricing",
  "allowance_caveat": "Plan capacities are inherited estimates, not independently remeasured here.",
  "runs": {
    "fable-low": {
      "duplicate_records_removed": 118,
      "model_breakdown": {
        "claude-opus-4-7": {
          "unique_requests": 11,
          "tokens": {
            "input": 21,
            "output": 18598,
            "cache_read": 449199,
            "cache_write": 100959
          },
          "one_hour_cache_write_tokens": 0,
          "api_usd": 1.32064825,
          "sub_usd": 0.0754656142857143
        },
        "claude-fable-5-1": {
          "unique_requests": 90,
          "tokens": {
            "input": 1920,
            "output": 65894,
            "cache_read": 16358265,
            "cache_write": 356332
          },
          "one_hour_cache_write_tokens": 356332,
          "api_usd": 14.53010625,
          "sub_usd": 0.7749389999999999
        }
      },
      "old_sub_usd": 1.88,
      "corrected_sub_usd": 0.8504046142857142
    },
    "opus-low": {
      "duplicate_records_removed": 162,
      "model_breakdown": {
        "claude-opus-4-7": {
          "unique_requests": 21,
          "tokens": {
            "input": 41,
            "output": 31137,
            "cache_read": 986850,
            "cache_write": 210345
          },
          "one_hour_cache_write_tokens": 0,
          "api_usd": 2.58671125,
          "sub_usd": 0.14781207142857145
        },
        "claude-opus-5": {
          "unique_requests": 131,
          "tokens": {
            "input": 262,
            "output": 66321,
            "cache_read": 22551939,
            "cache_write": 328361
          },
          "one_hour_cache_write_tokens": 328361,
          "api_usd": 16.2189145,
          "sub_usd": 0.9267951142857144
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      },
      "old_sub_usd": 2.14,
      "corrected_sub_usd": 1.0746071857142858
    },
    "glm-claude-code": {
      "duplicate_records_removed": 192,
      "model_breakdown": {
        "glm-5.3": {
          "unique_requests": 157,
          "tokens": {
            "input": 278460,
            "output": 108877,
            "cache_read": 18015616,
            "cache_write": 0
          },
          "one_hour_cache_write_tokens": 0,
          "api_usd": 5.55296296,
          "sub_usd": 0.23920455827692308
        }
      },
      "old_sub_usd": 0.54,
      "corrected_sub_usd": 0.24295573464615386,
      "final_modelUsage_crosscheck": {
        "tokens": {
          "input": 279816,
          "output": 118680,
          "cache_read": 18177344,
          "cache_write": 0
        },
        "api_usd": 5.640043840000001,
        "sub_usd": 0.24295573464615386,
        "reason": "Final modelUsage includes aggregate overhead beyond assistant-visible usage. Preferred for complete run cost."
      }
    },
    "glm-zcode": {
      "source": "ZCode model_usage unique request records",
      "corrected_sub_usd": 0.1889026395,
      "individual_sessions": [
        {
          "label": "session 1",
          "unique_requests": 148,
          "tokens": {
            "input": 148577,
            "output": 61172,
            "cache_read": 16778176,
            "cache_write": 0
          },
          "one_hour_cache_write_tokens": 0,
          "api_usd": 4.83949036,
          "sub_usd": 0.208470354,
          "source": "ZCode model_usage database, sess_4ef71c9f (read-only)"
        },
        {
          "label": "session 2",
          "unique_requests": 120,
          "tokens": {
            "input": 137845,
            "output": 45521,
            "cache_read": 13606592,
            "cache_write": 0
          },
          "one_hour_cache_write_tokens": 0,
          "api_usd": 3.93098932,
          "sub_usd": 0.169334925,
          "source": "ZCode model_usage database, sess_d2baabb1 (read-only)"
        }
      ],
      "comparability": "Cost and tokens are the arithmetic mean per session. The 8.75/10 grade and recorded wall time describe their shared final branch, not two independently graded attempts.",
      "combined_tokens": {
        "input": 286422,
        "output": 106693,
        "cache_read": 30384768,
        "cache_write": 0
      },
      "combined_sub_usd": 0.377805278523077,
      "verified_tokens": {
        "input": 143211.0,
        "output": 53346.5,
        "cache_read": 15192384.0,
        "cache_write": 0.0
      },
      "corrected_api_usd": 4.3852398400000006,
      "cost_basis": "mean_per_session"
    },
    "sonnet-medium": {
      "duplicate_records_removed": 248,
      "model_breakdown": {
        "claude-opus-4-7": {
          "unique_requests": 15,
          "tokens": {
            "input": 35,
            "output": 16316,
            "cache_read": 719560,
            "cache_write": 121200
          },
          "one_hour_cache_write_tokens": 0,
          "api_usd": 1.525355,
          "sub_usd": 0.08716314285714287
        },
        "claude-sonnet-5": {
          "unique_requests": 182,
          "tokens": {
            "input": 364,
            "output": 126565,
            "cache_read": 44446694,
            "cache_write": 471512
          },
          "one_hour_cache_write_tokens": 471512,
          "api_usd": 12.0417648,
          "sub_usd": 0.6881008457142856
        }
      },
      "old_sub_usd": 1.46,
      "corrected_sub_usd": 0.7752639885714285
    },
    "codex-astra-low": {
      "source": "Codex turn.completed cumulative usage",
      "corrected_sub_usd": 0.17293868571428572
    }
  }
}