OpenAI Agent Builder shuts down on November 30; ChatKit stays

ChatGPTRetirementAnnounced

On June 3, 2026, OpenAI notified developers using Agent Builder that the product is being deprecated.

Agent Builder is scheduled to shut down on November 30, 2026.
ChatKit remains available.
OpenAI points developers to its Migrate from Agent Builder guide to continue with the Agents SDK or ChatGPT Workspace Agents.

Who can use it: Developers with agents built in OpenAI's Agent Builder. ChatKit users are not affected.
When: 2026-11-30 · date only
Deprecation announced June 3, 2026. Shutdown November 30, 2026, given as a calendar date with no time.

OpenAI API deprecations Announced 2026-06-03 · date only

Read the official announcement for access details. Availability can depend on your plan, region or workplace settings.

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