- Codex is now available on Windows as well as Mac
- OpenAI had to create “the first native Windows agent sandbox”
- Other IDEs, including Visual Studio, are supported by the Codex app
OpenAI has finally launched a Windows version of its Codex app after teasing it on Monday, to give even more users access to GPT-powered coding after the macOS version launches in February 2026.
A March 4 “Windows Wednesday” update to the previous announcement confirms that Microsoft fans now have access to the same desktop experience, hence the company’s promise to “[make] the application available on Windows” became reality in about a month.
“Get the full Codex app experience on Windows with a native agent sandbox and support for Windows development environments in PowerShell,” OpenAI added in a separate X article.
OpenAI’s Codex app now available on Windows
The ChatGPT creator explained that the Codex app allows users to work with multiple agents simultaneously, manage long-running tasks, review code differences centrally, and natively integrate with PowerShell without relying on WSL or virtual machines.
OpenAI also noted that, to build the application, it needed to create “the first native Windows agent sandbox” with “operating system-level controls such as restricted tokens, file system ACLs, and dedicated sandbox users.”
The company also added support for a number of IDEs, including Visual Studio, Rider + PhpStorm, Git Bash, GitHub Desktop, Cmder, WSL, and Sublime Text, “along with many other IDEs already supported on Mac,” according to a separate X article by Developer Experience developer Dominik Kundel.
The Codex app was originally released for Mac with GPT-5.2-Codex, but a GPT-5.3-Codex update a few days later improved speed, agent capabilities, and benchmark performance. Just a few days later, a smaller version of GPT-5.3-Codex-Spark was released.
Just like the Mac app, the Windows app and the entire Codex experience are free for Free, Go, Plus, and Pro subscriptions, but the low-end and non-paid tiers are more restricted in terms of tokens.
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