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 26, 2026
May 26, 2026
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May 25, 2026

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Product changes

  • Model comparison page — Compare up to five models side by side on pricing, context length, and benchmark scores with the new comparison tool, including a “Highlight best” toggle to call out the top value in each row.
  • Redesigned model detail API tab — The API tab on each model page now walks you through numbered steps (get an API key, make a request, enable streaming) with an endpoint reference and interactive parameters table.
  • Rankings daily dataset endpoint — A new GET /api/v1/datasets/rankings-daily endpoint returns the top-50 models by daily token volume, matching the data behind the public rankings chart. SDK reference
  • IP allowlist enforcement — API keys configured with an IP allowlist now actively block requests from non-allowlisted IPs with a 403 response, upgrading the previous observe-only mode. Docs
  • Auto router cost_quality_tradeoff parameter — The auto router now accepts a cost_quality_tradeoff integer (0–10) instead of the previous binary tradeoff, giving finer control over the cost-versus-quality balance when routing requests. Docs
  • Fixed: dashboard not refreshing on account switch — Switching between accounts in the dashboard now correctly remounts the page so data reflects the selected account.
  • Fixed: Bedrock BYOK region prefix mismatch — Bring-your-own-key Bedrock requests now normalize the inference profile region prefix to match the customer’s configured region, fixing “invalid model identifier” errors when the endpoint and key regions differed.