For AI agents: a documentation index is available at the root level at /llms.txt and /llms-full.txt. Append /llms.txt to any URL for a page-level index, or .md for the markdown version of any page.
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DocsAPI ReferenceClient SDKsAgent SDKCookbookChangelog
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ModelsChatRankingsDocs

Changelog

A daily log of product changes, improvements, and new model releases on OpenRouter
April 12, 2026
April 12, 2026

Product changes

  • Blocked models for auto-router — You can now specify ignored_models to exclude specific models from auto-router selection, giving finer control over which models handle your requests.
  • Native passthrough fix — Fixed an issue where native passthrough was incorrectly inserting provider-specific tools into normalized requests.
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