{
  "asOf": "2026-09-05",
  "retrievedAt": "2026-09-05T15:51:48.838Z",
  "discovery": "Exa API search and content retrieval",
  "scope": "Primary-source pricing observations supporting the closing forecast. These observations do not revise the historical chart snapshots.",
  "sources": [
    {
      "id": "anthropic-cache",
      "url": "https://www.anthropic.com/claude-fable-and-mythos-5-1",
      "published": "2026-09",
      "kind": "vendor estimate",
      "observation": "Anthropic attributes estimated Fable 5.1 savings versus Fable 5 to lower cache-read charges. It estimates 25% lower total cost on typical token-billed workloads and savings up to approximately 45% on highly agentic work.",
      "conditions": [
        "Savings depend on cached-input usage and the workload.",
        "These are vendor estimates, not measurements from the essay dataset."
      ],
      "title": "Introducing Claude Fable 5.1 and Claude Mythos 5.1 \\ Anthropic",
      "retrievalSource": "cached",
      "extractedTextSha256": "7cf7190844ab588be3d8baaf037c3dc0630ca58feab31ef4eaf04ce41e27bf6d"
    },
    {
      "id": "deepseek-clock",
      "url": "https://api-docs.deepseek.com/news/news260813/",
      "published": "2026-08-13",
      "kind": "announced pricing change",
      "observation": "DeepSeek announced peak and off-peak billing effective at 16:00 UTC on 16 August 2026. Off-peak rates are half the peak rates.",
      "conditions": [
        "The comparison is off-peak versus peak, not new rates versus previous rates."
      ],
      "corroboration": "https://api-docs.deepseek.com/quick_start/pricing/",
      "title": "DeepSeek-V4-Pro GA Release | DeepSeek API Docs",
      "retrievalSource": "cached",
      "extractedTextSha256": "1e86f88f561ef10bb1058d8df1afa2e1499d29bc4ed4e4b26d85f05ed0f5b995"
    },
    {
      "id": "openai-promotion",
      "url": "https://developers.openai.com/api/docs/pricing",
      "published": null,
      "kind": "current published condition",
      "observation": "The OpenAI pricing page states that GPT-5.6 Sol promotional rates are available at least through 21 November 2026.",
      "conditions": [
        "The page does not commit to an end date or a specific post-promotion rate.",
        "Availability at least through a date is not a scheduled price increase."
      ],
      "title": "Pricing | OpenAI API",
      "retrievalSource": "cached",
      "extractedTextSha256": "c96055a07a78716911041a746913c3d36e3b26136fdc17503c6dac0e9c8bcbc3"
    },
    {
      "id": "google-introductory-rate",
      "url": "https://cloud.google.com/gemini-enterprise-agent-platform/generative-ai/pricing",
      "published": null,
      "kind": "scheduled pricing change",
      "observation": "Google Cloud lists standard global Gemini 3.7 Flash rates of USD 0.75 per million input tokens and USD 3.75 per million output tokens through 31 December 2026. Rates of USD 1.50 input and USD 7.50 output are scheduled for 1 January 2027.",
      "conditions": [
        "Applies to the cited Google Cloud standard global offering.",
        "Non-global, Priority, Flex and Batch rates differ.",
        "The future rates are a published schedule, not a guarantee that terms will remain unchanged."
      ],
      "title": "Agent Platform Pricing | Google Cloud",
      "retrievalSource": "crawled",
      "extractedTextSha256": "a6408eecc6589682ad4cb87420e0be4b052ad5a94ac9b2af02fea3ba3cec0b71"
    }
  ]
}