OpenAI expanded Codex's Computer Use capability to Windows on May 31, 2026, according to the company's release notes. Users with Codex access can now point the agent at native Windows applications and let it see the screen, move the cursor, click, and type — the same primitives Codex already had on macOS.
Computer Use on Windows targets a different audience than browser-based agents. Most enterprise tooling — ERP systems, CAD packages, line-of-business clients, custom installers — lives in native desktop apps that web-only agents simply cannot reach. By unlocking Windows, OpenAI puts Codex on the operating system that still dominates corporate fleets, opening a long tail of workflows that previously required scripting or manual operation.
The release is also strategically timed. Microsoft Build 2026 opens on June 2, with Windows-as-the-AI-agent-platform widely expected to anchor Satya Nadella's keynote. By shipping Codex's Windows agent capability before Build, OpenAI ensures that any Microsoft announcement of a Windows Agent Framework lands in a market where its own model already runs the same primitives — a notable signal in a year where OpenAI and Microsoft's relationship has been quietly reconfiguring around enterprise services.
For developers, the immediate use cases are testing automation on native Windows software, end-to-end QA across desktop apps, document workflows that span Office, PDF, and ERP clients, and IT runbook automation where a human-in-the-loop agent can sit alongside a remote-desktop session. OpenAI did not publish a Windows-specific safety report alongside the rollout, but Codex Computer Use remains gated to users with explicit access.
Pricing for the Windows variant matches the existing Codex Computer Use tier. Availability is rolling out to existing Codex customers and is not tied to a specific Windows version requirement disclosed in the release notes.
Source: [OpenAI Help Center](https://help.openai.com/en/articles/6825453-chatgpt-release-notes)