{
  "title": "AI model API price tracker",
  "currency": "USD",
  "unit": "per 1M tokens, standard (non-batch) tier, text, shortest context bracket",
  "lastChecked": "2026-10-14",
  "models": [
    {
      "provider": "Anthropic",
      "model": "Claude Opus 5.5",
      "id": "claude-opus-5-5",
      "input": 4,
      "output": 20,
      "note": "Batch API is 50% off. Fast mode costs $8 / $40.",
      "source": "https://platform.claude.com/docs/en/about-claude/pricing",
      "checked": "2026-10-14"
    },
    {
      "provider": "Anthropic",
      "model": "Claude Sonnet 5.5",
      "id": "claude-sonnet-5-5",
      "input": 2,
      "output": 10,
      "note": "",
      "source": "https://platform.claude.com/docs/en/about-claude/pricing",
      "checked": "2026-10-14"
    },
    {
      "provider": "Anthropic",
      "model": "Claude Haiku 5.5",
      "id": "claude-haiku-5-5",
      "input": 0.1,
      "output": 0.5,
      "note": "Prompts up to 100K tokens. Over 100K: $0.50 / $2.50.",
      "source": "https://platform.claude.com/docs/en/about-claude/pricing",
      "checked": "2026-10-14"
    },
    {
      "provider": "Google",
      "model": "Gemini 4 Argon",
      "id": "gemini-4-argon",
      "input": 2,
      "output": 10,
      "promo": {
        "until": "2026-11-30",
        "after": {
          "input": 4,
          "output": 20
        }
      },
      "note": "Introductory price through Nov 30, 2026. $4 / $20 starting Dec 1, 2026. Output includes thinking tokens.",
      "source": "https://ai.google.dev/gemini-api/docs/pricing",
      "checked": "2026-10-14"
    },
    {
      "provider": "Google",
      "model": "Gemini 3.8 Flash",
      "id": "gemini-3-8-flash",
      "input": 0.75,
      "output": 3.75,
      "promo": {
        "until": "2026-12-31",
        "after": {
          "input": 1.5,
          "output": 7.5
        }
      },
      "note": "Price through Dec 31, 2026. $1.50 / $7.50 starting Jan 1, 2027.",
      "source": "https://ai.google.dev/gemini-api/docs/pricing",
      "checked": "2026-10-14"
    },
    {
      "provider": "OpenAI",
      "model": "GPT-6 Astra",
      "id": "gpt-6-astra",
      "input": 10,
      "output": 50,
      "note": "Up to 272K input tokens. Longer context: $20 / $75.",
      "source": "https://platform.openai.com/docs/pricing",
      "checked": "2026-10-14"
    },
    {
      "provider": "OpenAI",
      "model": "GPT-6.1 Sol",
      "id": "gpt-6-1-sol",
      "input": 2,
      "output": 10,
      "note": "Up to 272K input tokens. Longer context: $4 / $15.",
      "source": "https://platform.openai.com/docs/pricing",
      "checked": "2026-10-14"
    },
    {
      "provider": "OpenAI",
      "model": "GPT-6 Luna",
      "id": "gpt-6-luna",
      "input": 0.1,
      "output": 0.5,
      "note": "Up to 272K input tokens. Longer context: $0.20 / $0.75.",
      "source": "https://platform.openai.com/docs/pricing",
      "checked": "2026-10-14"
    }
  ]
}