OpenAI expands Codex and its API at DevDay with security scans, a Decisions API, and Ultrafast
OpenAI announced extensions to Codex and its API at DevDay 2026 in San Francisco. Codex adds reusable cloud environments, repository security scanning through Codex Security Cloud, a desktop code-review view and a redesigned CLI, while the Agents API gains Computer Use, Tool Search and Context Compaction.