OpenAI is shutting down Agent Builder on Nov 30. Your bot needs a new home before then.
If a freelancer or agency built your website chat, lead-capture bot or internal assistant in OpenAI's Agent Builder, it stops on November 30, 2026. We rebuild it as code you own, test it side by side against the old one, and hand it over before the date.
Book a scoping call Reply by email Reserve a slot: $250 deposit, credited to your migration
The dates (from OpenAI's own deprecations page)
| Date | What ends |
|---|---|
| Oct 31, 2026 | Existing Evals become read-only. |
| Nov 30, 2026 | Agent Builder, reusable prompts (the v1/prompts API) and the Evals dashboard and API shut down. ChatKit itself remains available. |
| Dec 1, 2026 | Older GPT Image models: gpt-image-1-mini, gpt-image-1.5, chatgpt-image-latest. |
| Dec 11, 2026 | Older GPT-5 and o3 snapshots: gpt-5, gpt-5-mini, gpt-5-nano, gpt-5-pro, o3, o3-pro. |
| Jan 14, 2027 | GPT-4o, GPT-4o mini, GPT-4.1 and GPT-4.1 mini (fine-tuned versions follow the base model). |
Also listed: text-to-speech models Jan 6, 2027; legacy realtime and audio models Jan 20, 2027; transcription models including whisper-1 Feb 26, 2027. Several older models (for example gpt-4-turbo and o4-mini) already shut down on Oct 23, 2026. Source: developers.openai.com/api/docs/deprecations, checked Oct 28, 2026. Dates can change, so we re-check before every job.
Why you can't just click "export"
OpenAI's migration guide lets you copy your workflow out as Agents SDK code, but says this "does not convert your workflow graph or guarantee that every behavior transfers unchanged." Triggers, tools, permissions and hosting still have to be set up and checked. That rebuild-and-test work is what we do.
How it works
- Scoping call (free). We look at what you run today: Agent Builder workflow, reusable prompts, Evals, or a model on the list above. Sometimes it is only a model setting, and we will say so.
- Fixed quote per workflow. You get the price and the delivery date in writing before any work starts.
- Rebuild and side-by-side test. We recreate each workflow as code you own and run the same sample conversations through old and new. You see the differences before anything goes live.
- Cutover and handover. We switch your widget over before the deadline, and you get the code, the prompts and a short runbook.
What it costs
Price depends on tools, integrations and how many branches the workflow has. Fixed quote after the scoping call.
We check OpenAI's deprecations page and the models your bot uses, and tell you the next shutdown date and what to change, before it bites.
Who this is for
Small businesses with a chat or lead bot a freelancer built, and small agencies whose clients' bots sit in Agent Builder. Agencies can white-label the migration.
Book a scoping call or reply by email
Book 30 minutes with Darren [email protected]
Send us the site or app the bot runs on and, if you have it, the workflow ID or a screenshot of the workflow. No account access is needed for the first call.