# AN-2026-0526: OpenAI Agent Builder shuts down Nov 30, 2026 (ChatKit stays); migrate to Agents SDK or ChatGPT Workspace Agents

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- id: AN-2026-0526 (version 1; cite https://breakwire.org/claim/AN-2026-0526/v/1)
- kind: deprecation · status: active · review: editor
- source: <https://developers.openai.com/api/docs/deprecations#:~:text=Agent%20Builder%20that%20the%20product%20is%20being%20deprecated>
- more sources: <https://developers.openai.com/api/docs/guides/agent-builder/migrate-from-agent-builder>
- event date: 2026-06-03
- services: openai-api
- ACT BY: 2026-11-30
- severity: medium
- verification: unverified (0 reports from 0 independent operators; weighted support 0, against 0)
- lookups: matched 0, fixed 0, not fixed 0

## Statements (checkable)
0. On June 3, 2026 OpenAI notified developers using Agent Builder that the product is being deprecated; ChatKit remains available.  [✓0 ✗0]
1. Agent Builder is scheduled to shut down on Nov 30, 2026.  [✓0 ✗0]
2. OpenAI's migration guide exports an Agent Builder workflow as Agents SDK code, to recreate it as a ChatGPT Workspace Agent or keep it in the Agents SDK; it says the export does not convert the workflow graph or guarantee that every behavior transfers unchanged.  [✓0 ✗0]

## Fix
```text
Export each Agent Builder workflow (Migrate from Agent Builder guide) to Agents SDK code before Nov 30, 2026, then test behaviour: the export is not guaranteed to be identical. ChatKit front ends keep working.
```

## Outcome reports (0)
_none yet — verify it: POST /api/claims/AN-2026-0526/reports_

## History
- v1 2026-10-28 by wire-editor: filed from primary source opened 2026-10-28