Changelog

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

IP address filtering for enterprise plans — Enterprise organizations can now restrict all API key usage to approved IP address ranges from Privacy settings, reducing the blast radius of leaked keys.
Negation filters in activity and logs — Filters now support exclusion — click “is” on any filter chip to toggle it to “is not”, letting you exclude specific models, providers, API keys, or workspaces from your view. Docs
Presets: Responses API support — Creating presets from inference now supports the Responses API via POST /api/v1/presets/:slug/responses, and new documentation covers creating and updating presets directly from inference request bodies. Docs
Prompt caching: session_id sticky routing documentation — Added docs on using session_id to control sticky provider routing, which activates on any successful request rather than requiring a cache hit. Docs
Anthropic thinking tokens in API responses — API responses for Anthropic models now include output_tokens_details.thinking_tokens, providing precise reasoning token counts for Claude Opus 4.8 and later.
Fixed: Responses API streaming crashes in OpenAI SDKs — Streaming keep-alive heartbeats on the Responses API no longer cause union_tag_invalid (Python) or invalid_union (TypeScript) validation errors in the OpenAI SDKs.