OpenAI Agent Builder’s Nov. 30 shutdown puts migration on a code-and-validation path

Photo: Forkast
On June 3, 2026, OpenAI announced that Agent Builder is scheduled to shut down on November 30, 2026. For teams that choose to carry workflows forward, the practical question is which documented route fits. The official deprecations page says the product is being retired and that ChatKit remains available. The documentation does not specify whether the post-shutdown ChatKit runtime will support existing Agent Builder workflow IDs. For teams considering migration, it helps to understand the components of a workflow.
Source: Forkast







