OpenAI · api
agent-builder deprecation: shutdown date & replacement
Shuts down November 30, 2026 — in 65 days
- Provider
- OpenAI
- Name
- Agent Builder
- Type
- api
- Announced
- Shutdown
- Replacement
Agents SDK- Source
- Official OpenAI notice
Agent Builder product shut down; ChatKit remains available.
How to migrate off agent-builder
- Find every place that references it:
grep -rn --exclude-dir={node_modules,.git,dist} "agent-builder" . - Follow the provider’s migration notes in the official notice.
- Re-run your evals or a sample of real prompts — output style, token usage and pricing can change between APIs.
- Check config outside code too: environment variables, feature flags, prompt-management tools, and fine-tuned model references.
- Deploy before November 30, 2026, and add the CI scanner so it cannot come back.
Also shutting down on November 30, 2026 (OpenAI)
Questions
Is agent-builder deprecated?
Yes. OpenAI has deprecated agent-builder. It shuts down on November 30, 2026.
When does agent-builder shut down?
November 30, 2026, according to OpenAI's official deprecation notice.
What should I use instead of agent-builder?
OpenAI recommends Agents SDK. Switch the model ID and re-test your prompts, since outputs, pricing and limits can differ.
What happens to requests to agent-builder after the shutdown?
Requests using the retired model ID fail with an error, so any code still calling it breaks. Update and deploy before the shutdown date.