- Codex is now available on Windows as well as Mac
- OpenAI to build “the first Windows-native agent sandbox”
- Several 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 encoding after the macOS version launches in February 2026.
A March 4 “Windows Wednesday” update to the previous announcement confirms that Microsoft fans will now have access to the same desktop experience, so the company’s promise to “[make] app available on Windows” became a reality within about a month.
“Get the full Codex app experience on Windows with a built-in agent sandbox and support for Windows developer environments in PowerShell,” OpenAI added in a separate X post.
OpenAI’s Codex app is now available on Windows
The ChatGPT maker explained that the Codex app allows users to work with multiple agents simultaneously, manage long-running tasks, review code differences centrally, and integrate natively with PowerShell without relying on WSL or virtual machines.
OpenAI also noted that to build the app, it had to build “the first Windows-native agent sandbox” with “OS-level controls like 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, “plus a bunch that were already supported on Mac,” according to a separate X post by Developer Experience contributor Dominik Kundel.
The Codex app originally launched for Mac with GPT-5.2-Codex, but a GPT-5.3-Codex update days later improved speed, agent features, and benchmark performance. A few days later, a smaller GPT-5.3-Codex-Spark version was launched.
As with the Mac app, the Windows app and the entire Codex experience are free across Free, Go, Plus, and Pro plans, but lower tiers and non-paying tiers are more limited in terms of tokens.
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