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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ModelsChatRankingsDocs

Changelog

A daily log of product changes, improvements, and new model releases on OpenRouter
May 31, 2026
May 31, 2026

Product changes

  • Fusion Router documentation and model page — Added a dedicated Fusion Router documentation page and a model page describing the full panel → judge → synthesis pipeline, configuration options, and failure behavior.
  • MiniMax M3 reasoning support — MiniMax M3 now supports the thinking parameter, enabling extended reasoning for complex tasks.
  • Fixed: Azure forbidden error mapping — Azure provider responses with a forbidden status in server-sent events are now correctly surfaced as HTTP 403 instead of being misclassified.

New models

  • MiniMax: MiniMax M3
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