OpenAI expands Codex with new security scans, a Decisions API, and an Ultrafast tier. At DevDay 2026, OpenAI introduces reusable cloud environments for Codex, automatic security scans for GitHub repositories, and a code review view in the desktop app. The Agents API now supports Computer Use, and a new Decisions API handles fast, single decisions, while the Ultrafast premium tier promises up to eight times the speed at six times the price.
Opening Kapyn…