{
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        "usd": 1.72602
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        "usd": 151.68875
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    "One experiment per model, with different execution histories and generated subjects. Completion counts are not quality scores.",
    "Fable published 72 pages after interruptions; Astra produced all 100 in one uninterrupted turn.",
    "Prices are standard public API rates, not measured subscription spend or invoices. No general speed, quality or cost-efficiency conclusion follows from this alone."
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  "sources": {
    "astra_rates": "https://developers.openai.com/api/docs/models/gpt-6-astra",
    "fable_rates": "https://platform.claude.com/docs/en/about-claude/pricing"
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}