OpenAI has added Windows support to Codex, enabling computer use that takes action directly on Windows machines. The expansion brings Codex's agentic capabilities to a major platform it previously didn't cover.
Alongside Windows support, OpenAI added task control through the ChatGPT mobile app. Users can now start, review, and steer Codex work remotely from their phones.
The combination of Windows computer use and mobile task control points toward a vision where Codex operates as a remote, always-available agent rather than a tool tied to a single desktop session.
The update strengthens Codex's position in the agentic coding and computer-use race, where the ability to act across platforms and be steered from anywhere is becoming a key differentiator.