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
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ModelsChatRankingsDocs

Changelog

A daily log of product changes, improvements, and new model releases on OpenRouter
May 1, 2026
May 1, 2026
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April 30, 2026

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Product changes

  • Usage & Budgets tab on API keys — The API key detail view now includes a “Usage & Budgets” tab with spend charts and budget progress by guardrail layer.
  • API key Logs shortcut — API key detail pages and sheets now have a “Logs” button that links directly to filtered logs for that key.
  • API keys pagination — The Keys page now has numbered pagination controls with jump-to-page for easier navigation.
  • Active models filter on /models — The Models page now defaults to showing only active models, with a “Show deprecated” toggle in the sidebar.
  • Upstream error passthrough — Embeddings, text-to-speech, speech-to-text, and rerank requests now surface the actual provider error instead of a generic “No successful provider responses” message.
  • Image URL size limit — Requests with image URLs exceeding 30 MB total now return a clear 413 error instead of failing silently.

New models

  • xAI: Grok 4.3
  • OpenAI: GPT-4o Mini Transcribe
  • OpenAI: Whisper Large V3 Turbo
  • OpenAI: Whisper Large V3