On June 3, 2026, OpenAI announced that the Evals platform, Agent Builder, and reusable prompt objects are deprecated. The Evals dashboard and API, Agent Builder, and the prompts API are scheduled to shut down on November 30, 2026. Existing evals become read-only on October 31, 2026. ChatKit remains available.
Source: OpenAI deprecations, checked October 19, 2026.
| Product | Read-only | Shutdown | What to do |
|---|---|---|---|
| Evals dashboard and API | October 31, 2026 | November 30, 2026 | Move evals. OpenAI links a Promptfoo migration note. |
| Agent Builder | Not published | November 30, 2026 | Migrate workflows. ChatKit remains available. |
| Reusable prompts API | Not published | November 30, 2026 | Move prompt text into application code. |
Model shutdowns are separate. October 23, 2026 model IDs · December 1, 2026 image models · OpenAI on SunsetDiff
OpenAI's deprecations page schedules the Evals dashboard and API, Agent Builder, and the reusable prompts API for November 30, 2026. Existing evals become read-only on October 31, 2026.
No. The Agent Builder notice says ChatKit remains available.