If you have ever wanted Codex to work through your bugs and pull requests while you grab coffee or commute, OpenAI just made that possible. Codex, the company’s AI-powered coding agent, is now available in the ChatGPT mobile app on iOS and Android.
The feature is currently rolling out in preview across all plans, including Free and Go, in all supported regions. For now, mobile support works with the macOS Codex app. Windows support is coming soon.
What can Codex actually do from your phone?
The mobile version is not about writing entire apps on a tiny touchscreen. Think of it more like a remote control for AI-powered coding sessions already running on your computer.
When you connect your phone to any machine where Codex is running, whether that is your laptop, a dedicated Mac mini, or a remote development environment, the app pulls in the live state from that setup.
From there, you can review active threads, approve commands, switch models, check terminal output, look at test results, and inspect diffs, all without being anywhere near your desk.
Your files, credentials, and local setup stay on the machine doing the work, while real-time updates flow back to your phone as Codex makes progress.
OpenAI uses a secure relay layer to keep your trusted machines reachable across devices without exposing them to the public internet.
OpenAI clearly sees Codex as a huge deal
The ChatGPT maker has been reshaping its products around Codex with confirmed plans to combine ChatGPT, Codex, and its Atlas browser into one larger AI “superapp.”
The company recently brought Codex into Chrome, putting its coding agent directly inside your browser. It even introduced quirky “Codex Pets” that show live progress updates while AI coding tasks run in the background.
The competition is heating up with rivals like Anthropic’s Claude Code which gained a remote monitoring feature, back in February. OpenAI is now making its own push, and clearly does not want to fall behind.