OpenAI's Codex just got its own Mac app - and anyone can try it for free now

OpenAI introduced a Mac-only Codex app designed as a command center for multi-agent coding, enabling parallel tasks, reusable “skills,” a plan/read-only mode, and sandboxed local controls with granular folder and network permissions. The app keeps context across IDE, terminal, and app, adds a JetBrains extension, and accompanies rising usage of GPT-5.2-Codex; access is available via ChatGPT plans (with temporary broader access and doubled rate limits), with hints at higher-speed enterprise tiers and a likely future Windows release.