[
  {
    "name": "versioned tokens and cache",
    "expression": "v1:tier(\"base\", p * 2 + c * 8 + cr * 0.2)",
    "tokens": {
      "p": 900,
      "c": 100,
      "cr": 100
    },
    "cost": 2620,
    "tier": "base"
  },
  {
    "name": "nil false and zero",
    "expression": "param(\"missing\") == nil && param(\"zero\") == 0 && param(\"enabled\") == false ? tier(\"ok\", 3.5) : tier(\"bad\", 99)",
    "body": {
      "zero": 0,
      "enabled": false
    },
    "cost": 3.5,
    "tier": "ok"
  },
  {
    "name": "normalized headers and two rules",
    "expression": "tier(\"base\", p * 2) * (header(\" X-Priority \") == \"high\" ? 2 : 1) * (param(\"service_tier\") == \"flex\" ? 0.5 : 1)",
    "tokens": {
      "p": 100
    },
    "headers": {
      " X-Priority ": " high "
    },
    "body": {
      "service_tier": "flex"
    },
    "cost": 200,
    "tier": "base",
    "multipliers": [
      2,
      0.5
    ],
    "matched": [
      true,
      true
    ]
  },
  {
    "name": "unmatched rule",
    "expression": "tier(\"base\", 10) * (param(\"priority\") == true ? 2 : 1)",
    "body": {},
    "cost": 10,
    "tier": "base",
    "multipliers": [
      2
    ],
    "matched": [
      false
    ]
  },
  {
    "name": "rules skipped by short circuit",
    "expression": "param(\"enabled\") == true ? tier(\"yes\", 10) * (header(\"tier\") == \"fast\" ? 3 : 1) : tier(\"no\", 2)",
    "body": {},
    "headers": {
      "tier": "fast"
    },
    "cost": 2,
    "tier": "no",
    "multipliers": [
      3
    ],
    "matched": [
      false
    ]
  },
  {
    "name": "noncanonical factor still evaluates",
    "expression": "tier(\"base\", 10) * (param(\"priority\") == true ? 2 : 1.5)",
    "body": {},
    "cost": 15,
    "tier": "base"
  },
  {
    "name": "path escapes array indices and length",
    "expression": "param(\"a\\\\.b.items.0.price\") + param(\"a\\\\.b.items.#\")",
    "body": {
      "a.b": {
        "items": [
          {
            "price": 4
          },
          {
            "price": 8
          }
        ]
      }
    },
    "cost": 6,
    "tier": ""
  },
  {
    "name": "literal path to constructor",
    "expression": "param(\"constructor\") == nil ? 4 : 99",
    "body": {},
    "cost": 4,
    "tier": ""
  },
  {
    "name": "contains scalars and objects",
    "expression": "has(param(\"n\"), \"12\") && has(param(\"object\"), \"map[a:1 b:[true <nil>]]\") && !has(nil, \"x\") && !has(\"abc\", \"\") ? 8 : 99",
    "body": {
      "n": 123,
      "object": {
        "b": [
          true,
          null
        ],
        "a": 1
      }
    },
    "cost": 8,
    "tier": ""
  },
  {
    "name": "math and numeric division",
    "expression": "min(10, max(2, 5)) + abs(-2) + ceil(1.1) + floor(2.9) + 5 / 2 + 7 % 3",
    "cost": 14.5,
    "tier": ""
  },
  {
    "name": "task token scale and request rule",
    "expression": "tier(\"base\", 0.2 + u(\"tokens\") * 10 / 1000000) * (header(\"tier\") == \"fast\" ? 2 : 1)",
    "usage": {
      "tokens": 500000
    },
    "headers": {
      "tier": "fast"
    },
    "cost": 10.4,
    "tier": "base",
    "multipliers": [
      2
    ],
    "matched": [
      true
    ]
  },
  {
    "name": "task enum conditions",
    "expression": "u(\"mode\") == \"pro\" ? tier(\"pro\", u(\"seconds\") * 0.8) : tier(\"std\", u(\"seconds\") * 0.4)",
    "usage": {
      "mode": "pro",
      "seconds": 5
    },
    "cost": 4,
    "tier": "pro"
  },
  {
    "name": "scientific rates and parentheses",
    "expression": "(tier(\"base\", (p * 2e-3 + c * 1E+1)))",
    "tokens": {
      "p": 1000,
      "c": 2
    },
    "cost": 22,
    "tier": "base"
  },
  {
    "name": "fixed request with zero usage",
    "expression": "tier(\"request\", fixed(0.01))",
    "cost": 10000,
    "tier": "request",
    "billingUnit": "request",
    "fixedPrice": 0.01
  },
  {
    "name": "explicit free request",
    "expression": "tier(\"free\", fixed(0))",
    "tokens": {
      "p": 1000
    },
    "cost": 0,
    "tier": "free",
    "billingUnit": "request",
    "fixedPrice": 0
  },
  {
    "name": "mixed expression token fallback",
    "expression": "len <= 32000 ? tier(\"short\", fixed(0.01)) : tier(\"long\", p * 2 + c * 8)",
    "tokens": {
      "p": 32001,
      "c": 100,
      "len": 32001
    },
    "cost": 64802,
    "tier": "long",
    "billingUnit": "token"
  },
  {
    "name": "fixed request with multiplier",
    "expression": "(len <= 32000 ? tier(\"short\", fixed(0.01)) : tier(\"long\", p * 2 + c * 8)) * (param(\"fast\") == true ? 2 : 1)",
    "tokens": {
      "len": 1
    },
    "body": {
      "fast": true
    },
    "cost": 20000,
    "tier": "short",
    "multipliers": [
      2
    ],
    "matched": [
      true
    ],
    "billingUnit": "request",
    "fixedPrice": 0.01
  },
  {
    "name": "fixed time condition",
    "expression": "hour(\"Asia/Shanghai\") >= 0 && hour(\"Asia/Shanghai\") < 24 ? tier(\"today\", fixed(0.02)) : tier(\"fallback\", p * 2)",
    "cost": 20000,
    "tier": "today",
    "billingUnit": "request",
    "fixedPrice": 0.02
  },
  {
    "name": "image count is distinct from requested n",
    "expression": "tier(\"image\", fixed(0.04)) * image_count",
    "imageCount": 2,
    "body": {
      "n": 3
    },
    "cost": 80000,
    "tier": "image",
    "billingUnit": "request",
    "fixedPrice": 0.04
  },
  {
    "name": "image count and quality adjustment",
    "expression": "tier(\"image\", fixed(0.04)) * image_count * (param(\"quality\") == \"hd\" ? 2 : 1)",
    "imageCount": 3,
    "body": {
      "quality": "hd"
    },
    "cost": 240000,
    "tier": "image",
    "billingUnit": "request",
    "fixedPrice": 0.04,
    "multipliers": [
      2
    ],
    "matched": [
      true
    ]
  },
  {
    "name": "free image count maximum",
    "expression": "tier(\"image\", fixed(0)) * image_count",
    "imageCount": 128,
    "cost": 0,
    "tier": "image",
    "billingUnit": "request",
    "fixedPrice": 0
  },
  {
    "name": "default image quantity",
    "expression": "tier(\"image\", fixed(0.04)) * image_count",
    "cost": 40000,
    "tier": "image",
    "billingUnit": "request",
    "fixedPrice": 0.04
  },
  {
    "name": "audio pricing ignores text cache discounts",
    "expression": "(ai > 0 || ao > 0) ? tier(\"audio\", max(len - ai, 0) * 2 + c * 6 + ai * 4 + ao * 4) : tier(\"base\", p * 2 + c * 6 + cr * 0.2)",
    "tokens": {
      "len": 1000,
      "ai": 200,
      "ao": 50,
      "c": 50
    },
    "cost": 2900,
    "tier": "audio",
    "displayTiers": [
      {
        "label": "audio",
        "conditions": [],
        "prices": {
          "p": 2,
          "c": 6,
          "ai": 4,
          "ao": 4
        },
        "conditionText": "Audio requests"
      },
      {
        "label": "base",
        "conditions": [],
        "prices": {
          "p": 2,
          "c": 6,
          "cr": 0.2
        },
        "conditionText": "Text-only requests"
      }
    ],
    "conversion": {
      "model_name": "contract-audio",
      "pricing": {
        "ModelRatio": 1,
        "CompletionRatio": 3,
        "CacheRatio": 0.1,
        "AudioRatio": 2
      }
    }
  },
  {
    "name": "text requests retain configured cache discount",
    "expression": "(ai > 0 || ao > 0) ? tier(\"audio\", max(len - ai, 0) * 2 + c * 6 + ai * 4 + ao * 4) : tier(\"base\", p * 2 + c * 6 + cr * 0.2)",
    "tokens": {
      "p": 600,
      "c": 100,
      "cr": 400,
      "ai": 0,
      "ao": 0
    },
    "cost": 1880,
    "tier": "base",
    "displayTiers": [
      {
        "label": "audio",
        "conditions": [],
        "prices": {
          "p": 2,
          "c": 6,
          "ai": 4,
          "ao": 4
        },
        "conditionText": "Audio requests"
      },
      {
        "label": "base",
        "conditions": [],
        "prices": {
          "p": 2,
          "c": 6,
          "cr": 0.2
        },
        "conditionText": "Text-only requests"
      }
    ]
  },
  {
    "name": "audio display survives redundant parentheses",
    "expression": "(ai > 0 || ao > 0) ? tier(\"audio\", max((len - ai), (0)) * 2 + c * 6 + ai * 4 + ao * 4) : tier(\"base\", p * 2 + c * 6 + cr * 0.2)",
    "tokens": {
      "len": 1000,
      "ai": 200,
      "ao": 50,
      "c": 50
    },
    "cost": 2900,
    "tier": "audio",
    "displayTiers": [
      {
        "label": "audio",
        "conditions": [],
        "prices": {
          "p": 2,
          "c": 6,
          "ai": 4,
          "ao": 4
        },
        "conditionText": "Audio requests"
      },
      {
        "label": "base",
        "conditions": [],
        "prices": {
          "p": 2,
          "c": 6,
          "cr": 0.2
        },
        "conditionText": "Text-only requests"
      }
    ]
  },
  {
    "name": "audio display survives commuted operands",
    "expression": "(ao > 0 || ai > 0) ? tier(\"audio\", 2 * max(0, len - ai) + 6 * c + 4 * ai + ao * 4) : tier(\"base\", p * 2 + 6 * c + cr * 0.2)",
    "tokens": {
      "len": 1000,
      "ai": 200,
      "ao": 50,
      "c": 50
    },
    "cost": 2900,
    "tier": "audio",
    "displayTiers": [
      {
        "label": "audio",
        "conditions": [],
        "prices": {
          "p": 2,
          "c": 6,
          "ai": 4,
          "ao": 4
        },
        "conditionText": "Audio requests"
      },
      {
        "label": "base",
        "conditions": [],
        "prices": {
          "p": 2,
          "c": 6,
          "cr": 0.2
        },
        "conditionText": "Text-only requests"
      }
    ]
  }
]