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.
ModelsChatRankingsDocs
DocsAPI ReferenceClient SDKsAgent SDKCookbookChangelog
DocsAPI ReferenceClient SDKsAgent SDKCookbookChangelog
LogoLogo
ModelsChatRankingsDocs

Changelog

A daily log of product changes, improvements, and new model releases on OpenRouter
May 12, 2026
May 12, 2026
Was this page helpful?
Previous

May 11, 2026

Next
Built with

Product changes

  • Private Models Beta — Published a new Private Models page covering the beta for routing to your own custom, fine-tuned, or dedicated model endpoints via the standard completions and responses endpoints.
  • Anthropic Claude Opus 4.7 Fast mode — speed: "fast" now routes Claude Opus 4.7 to Anthropic’s new fast-mode endpoint; the fast permaslug is also directly callable as anthropic/claude-opus-4.7-fast.
  • BYOK keys grouped by priority — The BYOK provider detail page now splits keys into a Prioritized section (tried in order) and a Fallback section (tried only after OpenRouter credits), each independently reorderable via drag-and-drop. Docs
  • Adaptive Exa highlights for web search — The default web-search server tool and web plugin now request adaptive highlights from Exa (roughly 2–4K characters per result) instead of a fixed 15K-character cap; set search_context_size to low, medium, or high to opt back into a larger fixed budget.
  • Fixed: playground preserves uploaded images after video generation — Submitting a video generation in the playground no longer clears the images you previously attached to the prompt.
  • Fixed: model compare page on mobile — The model compare page now scrolls horizontally with a sticky header row on narrow screens, and the “Add model” trigger no longer surfaces Quick suggestions.

New models

  • Anthropic: Claude Opus 4.7 (Fast)
  • Perceptron: Perceptron Mk1