Originally published on AI Tech Connect.
What you need to know A dated sunset, already running. On 3 June 2026 OpenAI announced it is deprecating Agent Builder, the visual workflow canvas, and the Evals platform. The deprecations page sets the dates: existing Evals go read-only on 31 October 2026, and both products are fully unavailable from 30 November 2026. Eight months, launch to notice. AgentKit and its visual Agent Builder shipped on 6 October 2025 at DevDay 2025. The deprecation notice landed roughly eight months later. ChatKit survives. The embeddable chat UI toolkit is not part of the wind-down. Stated migration paths. Agents SDK or ChatGPT Workspace Agents for Agent Builder; for Evals, OpenAI points users towards alternatives such as Promptfoo. DevDay is on 29 September. OpenAI DevDay 2026 runs at Fort Mason, San…
Top comments (0)