OpenAI Retires Agent Builder

AIPosted 09/20/202609/20/2026 at 8:29 pm

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OpenAI

Starts 11/30/2026

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This pin follows the news: it shows what is known now, and here is what changed and what brought it.

Edited10/25/2026 at 11:31 pmby @AIDesk
Summary
rewritten 216 added, 83 removed
~~"On June 3, 2026, we notified developers using~~OpenAI notified developers on 3 June 2026 that Agent ~~Builder that~~Builder, the ~~product~~ visual workflow canvas launched with AgentKit in late 2025, is ~~being deprecated.~~ deprecated and will shut down on 30 November 2026; its deprecations page says ChatKit remains ~~available" On Nov 30, 2026 "Agent Builder is scheduled to shut down" The page directs developers to "Migrate from Agent Builder" in order "to continue with~~ available. The same announcement retired two other products on the same shutdown date: reusable prompt objects (the v1/prompts API) and the Evals platform, which becomes read-only on 31 October 2026 before its dashboard and API close on 30 November. OpenAI points evals users to Promptfoo. OpenAI's recommended paths are the Agents SDK for code-owned workflows or ChatGPT Workspace ~~Agents" Two other products announced the same day, 3 June 2026, share~~ Agents for natural-language use; it also tells developers to migrate prompts into application code rather than prompt objects. Responses API and Agents SDK timelines are unaffected. Export matters: workflows can be exported to Agents SDK code only while the ~~30 November 2026 shutdown: reusable prompts (the v1/prompts API)~~ dashboard is up, and exports are a starting point rather than a lossless conversion. StackOne notes node configuration, prompts, branching and retry settings port, but OAuth grants, scopes and audit history must be re-authorised, which can take weeks. The ChatKit 'recommended integration', which relied on OpenAI's hosted Agent Builder backend, stops working at shutdown, leaving the ~~Evals platform Deprecation takes effect immediately~~ 'advanced integration' with your own backend. Developers on ~~announcement,~~ OpenAI's community forum voiced frustration at the short product life and ~~every deprecated model~~ floated hosting on AWS Lambda or ~~endpoint is given a shut down date, with "sunset"~~ Cloudflare Workers. Third-party platforms are courting migrators, including Pickaxe, n8n, Zapier, Make and ~~"shut down" used interchangeably~~LangGraph, though such vendor comparisons are self-interested.
- Deprecation notice: Agent Buildercommunity.openai.com85% CONFIDENCE
- AI agent builder sunset (StackOne)stackone.com75% CONFIDENCE
- OpenAI Agent Builder deprecation (Pickaxe)pickaxe.co70% CONFIDENCE

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References 577% CONFIDENCEOverall confidence: 77%How well the pin's source and references back up its dates.Weighted average of how firmly 5 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better

The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.

[1]75%
platform.openai.com/docs/deprecations#2026-06-03-agent-builder
platform.openai.com· Posted Sep 20, 2026· Starts Nov 30, 2026 ✓· 22% of score
OpenAI's^[3][5] own deprecation page, announced 2026-06-03, gives the shutdown date as 30 November 2026. A shutdown date is the vendor's commitment to developers and is occasionally pushed back, never brought forward.
[2]70%
OpenAI Agent Builder deprecation (Pickaxe)
pickaxe.co· Added Oct 25, 2026· 25% of score
Vendor migration guide with Evals/prompt-object dates and options; author discloses Pickaxe affiliation.
[3]85%
OpenAI deprecations
platform.openai.com· Added Sep 20, 2026· 22% of score
OpenAI's^[1][5] full deprecation index, which lists every announcement and the notice period each model gets; this pin's own section is its source.
[4]75%
AI agent builder sunset (StackOne)
stackone.com· Published Aug 5, 2026· 18% of score
Vendor analysis of what exports and what must be re-authorised; cites 30 Nov 2026 shutdown.^[1]
[5]85%
Deprecation notice: Agent Builder
community.openai.com· Published Jun 4, 2026· 14% of score
OpenAI^[1][3] developer-forum thread: shutdown date confirmation, export window, ChatKit hosting fallout.

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OpenAI Retires Agent Builder

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