arena/pricing.json at main · macanderson/arena · GitHub

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{
  "anthropic/claude-sonnet-5": {
    "inputPerM": 3,
    "outputPerM": 15,
    "cacheReadPerM": 0.3,
    "cacheWritePerM": 3.75
  },
  "anthropic/claude-opus-4.8": {
    "inputPerM": 15,
    "outputPerM": 75,
    "cacheReadPerM": 1.5,
    "cacheWritePerM": 18.75
  },
  "anthropic/claude-haiku-4.5": {
    "inputPerM": 0.8,
    "outputPerM": 4,
    "cacheReadPerM": 0.08,
    "cacheWritePerM": 1
  },
  "zai/glm-5.2": {
    "inputPerM": 0.6,
    "outputPerM": 2.2,
    "cacheReadPerM": 0.11,
    "note": "Verify against current z.ai coding-plan rate card before publishing."
  },
  "google/gemini-2.5-pro": {
    "inputPerM": 1.25,
    "outputPerM": 10,
    "cacheReadPerM": 0.31,
    "note": "Verify against current Google AI pricing before publishing."
  }
}