Model · OpenRouter

Anthropic/Claude Fable 5.1

Name: Claude Fable 5.1
Author: Anthropic

Claude Fable 5.1 improves on Claude Fable 5 across the board, with the biggest gains in agentic coding, long-running agentic workflows, and knowledge work: long code refactors, front-end and visual...

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Author / organization	Anthropic
Access	Hosted API (no weights listed here)
Price per million tokens	$10 in · $50 out
Context window	1,000,000 tokens
Task	image-text-to-text
Created	1 September 2026
Last updated at source	—

image-text-to-texthostedreasoningtool-use

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Silytics shows public metadata from OpenRouter and links to the original. Information may be incomplete or out of date. Last refreshed 18 October 2026. Licenses and terms of the original apply to the work itself. Not financial, legal or professional advice.