OpenAI winds down Agent Builder and Evals, steering developers to Agents SDK and Workspace Agents

OpenAI Help Center·medium signal

OpenAI announced (June 3, 2026) that Agent Builder and Evals will be removed from the platform on November 30, 2026, recommending the Agents SDK for workflows that should live as code and Workspace Agents in ChatGPT for prompt-driven use cases. Workspace Agents can own entire multi-step workflows, follow team processes, and be shared across a workspace, with new per-app action safeguards; the free period was extended to July 6, 2026. The deprecation is a notable consolidation signal — OpenAI is collapsing its no-code agent tooling in favor of SDK-as-code plus managed workspace agents.