{
  "date_verified": "2026-10-04",
  "unit": "USD per million tokens, Standard short context",
  "sources": [
    "https://developers.openai.com/api/docs/models/gpt-5.6-luna",
    "https://developers.openai.com/api/docs/models/gpt-6-astra",
    "https://docs.typesafe.ai/models"
  ],
  "main": {
    "gpt-5.6-luna": {
      "input": 0.2,
      "cached_input": 0.02,
      "cache_write": 0.25,
      "output": 1.2
    },
    "gpt-6-astra": {
      "input": 10,
      "cached_input": 1,
      "cache_write": 12.5,
      "output": 50
    }
  },
  "jev": {
    "model": "jev-1.13.0",
    "input": 0.042,
    "output": 0
  },
  "caveat": "Caller-supplied rate snapshot verified from official sources on this date. API-equivalent modeling assumes Standard pricing and <=272K tokens per request; Codex events report aggregate token usage but do not establish every request's context length, cache-write charges, service tier or actual subscription billing. Cache-write rates are recorded but not modeled because usage is unavailable. Missing usage yields null cost. These estimates are not an invoice."
}
