OpenAI ends Agent Builder and Evals, points to Agents SDK and Workspace Agents
Announced the end of AgentKit's Agent Builder and Evals products and pointed users to the Agents SDK and Workspace Agents
Why it matters
Products announced in October 2025 were pulled after 8 months — the instability of the agent tooling layer
Source — Primary sources first; secondary reports are labelled “Press”
Officialopenai.comhttps://openai.com/index/introducing-agentkit/Added in Week 35, 2026 · See that week