Four Ways to Build an AI Agent, and What Each Costs
On 6 October 2025, OpenAI unveiled Agent Builder at DevDay. A visual canvas where you drag boxes together and get an agent out the other end. Eight months later, on 3 June 2026, it was deprecated. It shuts down for good on 30 November 2026. Nobody did anything wrong there. OpenAI decided the visual builder was not the path and pointed users at the Agents SDK instead. But if you built your order…
We haven't written up this one. Dev.to has the full story — the link below goes straight to it.
