{
  "scope": "Original fictional token counts and invented cost-unit rates, not real provider prices, usage, client billing or savings. No model/API/cache execution.",
  "ratesPerMillion": {
    "input": "4",
    "output": "12",
    "read": "1/2",
    "write": "5"
  },
  "cases": {
    "A": {
      "input": 250000,
      "output": 50000,
      "expected": [
        "1",
        "3/5",
        "8/5"
      ]
    },
    "B": {
      "input": 250,
      "perMillion": "1/1000",
      "perToken": "1000",
      "factor": 1000000
    },
    "C": {
      "totalInput": 200000,
      "uncached": 50000,
      "read": 150000,
      "expected": "11/40",
      "doubleCount": "7/8",
      "excess": "3/5"
    },
    "D": {
      "write": 100000,
      "readEach": 100000,
      "reads": 3,
      "expected": "13/20",
      "ordinary": "8/5",
      "difference": "19/20"
    },
    "E": {
      "attempts": [
        [
          10000,
          2000
        ],
        [
          8000,
          1000
        ]
      ],
      "expected": [
        "8/125",
        "11/250"
      ],
      "total": "27/250",
      "acceptedItems": 1
    },
    "F": {
      "knownInputCost": "4/5",
      "output": null,
      "total": null,
      "scenarioCounts": [
        10000,
        20000
      ],
      "scenarioTotals": [
        "23/25",
        "26/25"
      ]
    }
  }
}