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
May 2, 2026
May 2, 2026

Product changes

  • Azure Responses stream error handling — Fixed error handling for Azure-hosted models in the Responses API, correctly surfacing upstream errors (e.g. rate limits) instead of empty completions.
  • API key detail card styling — Improved card border-radius consistency on the API key detail page.
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