# OpenAI Agent Builder Shuts Down Nov 30, 2026: Migration Guide > OpenAI Agent Builder shuts down on Nov 30, 2026. What stays, the two migration paths (Agents SDK or Workspace Agents), and a week-by-week plan for ops teams. Published 2026-11-01 · Updated 2026-11-01 **Short version:** OpenAI scheduled Agent Builder to shut down on **November 30, 2026**. If you have workflows in it, you need to move them to the Agents SDK (code) or ChatGPT Workspace Agents (natural language) before then ([OpenAI deprecations](https://developers.openai.com/api/docs/deprecations), [migration guide](https://developers.openai.com/api/docs/guides/agent-builder/migrate-from-agent-builder)). As of November 1, that is 29 days. ## What OpenAI has said - Announced June 3, 2026; shutdown scheduled for November 30, 2026 ([deprecations page](https://developers.openai.com/api/docs/deprecations)). - The AgentKit announcement page carries an update dated June 3, 2026 ([OpenAI: Introducing AgentKit](https://openai.com/index/introducing-agentkit/)). - ChatKit remains available ([deprecations page](https://developers.openai.com/api/docs/deprecations)). - Two migration paths: Agents SDK, or ChatGPT Workspace Agents ([migration guide](https://developers.openai.com/api/docs/guides/agent-builder/migrate-from-agent-builder)). - Workflows can be exported as Agents SDK code, but not as a perfect 1:1 conversion of the graph ([migration guide](https://developers.openai.com/api/docs/guides/agent-builder/migrate-from-agent-builder)). We do not have anything else from OpenAI on this, such as pricing differences or what happens to run history after the shutdown. Treat those as unknown and check the [migration guide](https://developers.openai.com/api/docs/guides/agent-builder/migrate-from-agent-builder) directly. ## The two paths, in plain words **Agents SDK (code).** You export the workflow as code and continue from there. Because the export is not a perfect copy of the graph, someone has to read the result and test it against the original behavior ([migration guide](https://developers.openai.com/api/docs/guides/agent-builder/migrate-from-agent-builder)). Choose this if you have a developer, or can hire one. **ChatGPT Workspace Agents (natural language).** You describe what the agent should do rather than wiring a graph ([migration guide](https://developers.openai.com/api/docs/guides/agent-builder/migrate-from-agent-builder)). Choose this if the person who owns the agent is not a developer. ## A plan for the next four weeks This is our suggested schedule, not an OpenAI one. The dates come from the shutdown date above. 1. **Week of Nov 2: inventory.** List every Agent Builder workflow, its owner, what it does, and whether anything customer-facing depends on it. Check whether any use ChatKit, which stays ([deprecations page](https://developers.openai.com/api/docs/deprecations)). 2. **Week of Nov 9: export and choose.** Export each workflow as Agents SDK code so you have a copy no matter which path you pick. Then assign each workflow to the SDK or Workspace Agents. 3. **Week of Nov 16: rebuild and test.** Run the new version next to the old one on real inputs and compare outputs. Expect differences, since the export is not 1:1. 4. **Week of Nov 23: cut over.** Switch traffic, leave the old workflow untouched as a fallback until November 30. ## When to bring in help If you have more than a handful of workflows, or any that touch customers, money or approvals, an outside developer saves time on the review step. See [AI agent developers](/hire/hire-ai-agent-developers/), or describe the job in one sentence on the [matcher](/match/). For the wider news this month, see the [November trending page](/blog/trending-ai-agents-tools-november-2026/). ## FAQ **When does OpenAI Agent Builder shut down?** November 30, 2026. OpenAI announced the shutdown on June 3, 2026 (developers.openai.com/api/docs/deprecations). **Is ChatKit also shutting down?** No. OpenAI says ChatKit remains available (developers.openai.com/api/docs/deprecations). **What are my migration options?** Two: the Agents SDK, where you work in code, or ChatGPT Workspace Agents, where you describe the agent in natural language (developers.openai.com/api/docs/guides/agent-builder/migrate-from-agent-builder). **Can I convert my workflow automatically?** You can export a workflow as Agents SDK code, but the conversion is not a perfect 1:1 match of the graph, so expect to review and fix the result (developers.openai.com/api/docs/guides/agent-builder/migrate-from-agent-builder). **Can I still export after November 30?** UNKNOWN. The pages we used do not say. Export before the date and do not rely on access afterward. **Which path should I pick?** OpenAI offers code (Agents SDK) or natural language (Workspace Agents). If someone on your team writes code and the agent is customer-facing or business-critical, the SDK path fits. If a non-developer owns the agent, look at Workspace Agents first. This is our reading of the two options, not OpenAI guidance. **Who can do this migration for me?** Browse AI agent developers at /hire/hire-ai-agent-developers/ or describe the job on the matcher at /match/. ## Sources - [OpenAI API docs: Deprecations](https://developers.openai.com/api/docs/deprecations) - [OpenAI API docs: Migrate from Agent Builder](https://developers.openai.com/api/docs/guides/agent-builder/migrate-from-agent-builder) - [OpenAI: Introducing AgentKit (updated June 3, 2026)](https://openai.com/index/introducing-agentkit/) --- Source: https://cofounderbase.com/blog/openai-agent-builder-sunset-migration-guide/?utm_source=md&utm_medium=ai · Cofounderbase, a directory of agencies that build AI internal tools and automations. Data comes from each agency's own website and official partner directories; rankings are not sold.