Claude Fable 5 chat from Anthropic through an OpenAI-compatible endpoint. It takes up to 1,000,000 tokens of text and image context and returns up to 128,000, with three reasoning-effort levels, up to 128 tool definitions and SSE streaming.
Input $9Output $45per 1 million tokens10% below the publisher's list priceCached input $0.90Cache write $11Anthropic official priceInput $10Output $50
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