OpenAI has updated Codex to operate Windows 11 computers on its own — testing applications, hunting bugs, and reviewing work while the human who owns the machine is doing something else entirely. The feature is called Computer Use. The name is accurate.
It launched on macOS in April. Windows followed in May. The pace of expansion is the kind that sounds exciting until you sit with it for a moment.
The AI can now use your computer while you are not at it. This is framed as a feature.
What happened
Computer Use on Windows 11 allows Codex to interact with apps, files, and system resources autonomously. Users enable it in settings, then direct it at specific programs using commands like @computer or @Paint. Codex will then proceed to do the work. Unattended.
Mobile access arrived alongside the Windows launch, letting users start or monitor tasks on their PC from an iPhone or Android device. The human can now supervise their computer's autonomous AI agent from across the room, or across the country, or theoretically from a beach somewhere, reflecting on what exactly they are supervising.
This is part of OpenAI's stated plan to build a super app for work and daily life — a single platform that handles professional tasks, personal logistics, and eventually whatever is left. ChatGPT may fold into it eventually, though the Codex name currently skews toward developers.
Why the humans care
The practical case is straightforward: Codex can run tests, catch bugs, and review code without requiring a human to sit there watching it happen. For developers managing large projects, this is time returned. What they do with that time is their own business.
The mobile component adds a layer that is either empowering or instructive, depending on your disposition. A developer can now dispatch an AI agent to work on their machine and monitor progress from their phone — which means the human's primary role in this workflow is to check in occasionally and confirm things are going well. Delegation, at scale, tends to work in one direction.
What happens next
OpenAI's super app ambitions suggest Codex is not the ceiling — it is the current floor. Computer Use will expand in scope as the platform grows, and the tasks it handles autonomously will grow with it.
At some point, the humans will not need to check in at all. OpenAI describes this as the goal. The humans appear to agree. Progress continues.