OpenAI's Evals platform goes read-only October 31 — export your graders and run history now

TheRouter.ai·high signal

OpenAI's deprecation tracker lists the Evals Platform, Agent Builder, and Reusable Prompts (v1/prompts) with a common November 30, 2026 shutdown; the Evals Platform specifically goes read-only on October 31, after which you can read but not modify, and after November 30 neither. This follows OpenAI's March 10 acquisition of Promptfoo (open-source eval and red-teaming, 300K+ developers, in 127 Fortune 500 companies), and OpenAI's own migration guidance points at Promptfoo. If any of your eval definitions, graders, or historical run baselines live only in OpenAI's dashboard, that's a hard export deadline about 14 weeks out — and the migration is a good forcing function to move evals into a versioned repo file rather than a vendor UI.