May 13, 2026

Product changes

• Fusion server tool now available via API and Chatroom -- Fusion is now available as an API plugin, a server tool, and in the chatroom composer — it routes your prompt to multiple models in parallel and synthesizes their responses into a single, higher-quality answer.
• Automatic prompt caching in the Responses API -- The Responses API now accepts top-level cache_control for Anthropic Claude models, closing a gap where cached input tokens stayed at zero on /api/v1/responses. Docs
• Logs page pagination toggle -- The Generations tab on the logs page now lets you switch between "Load more" and traditional paged navigation, with your preference saved across sessions.
• Replit community guide -- Added a community guide for configuring your OpenRouter API key in Replit projects.
• Fixed: Codex multi-turn reasoning context lost through OpenRouter -- Codex CLI and Desktop conversations proxied through OpenRouter no longer lose reasoning context across turns, fixing issues where the model would repeat completed steps.
• Fixed: chatroom artifacts ignoring prior prompts -- Follow-up artifact generations now include the full prompt history, preventing the model from generating unrelated content when iterating.
• Fixed: routing preferences ignored with fallbacks disabled -- preferred_min_throughput and preferred_max_latency now take effect when allow_fallbacks is set to false. Docs
• Fixed: mobile sidebar on iPad-size viewports -- The sidebar drawer on tablet-sized screens no longer renders behind the backdrop overlay.
• Fixed: Recraft vector model SVG output -- Recraft vector model variants now return properly encoded image/svg+xml data URLs instead of incorrectly labeled raster output. Docs