OpenAI Releases Codex on Mobile in Preview

OpenAI today announced the release of Codex agentic coding capabilities in the ChatGPT mobile app in preview. Tied to this, the company said there are now over 4 million people using Codex every week.

“Codex is now in the ChatGPT mobile app so you can stay in the loop from anywhere while Codex gets work done across your laptops, devboxes, or remote environments,” OpenAI explains. “As agents take on longer-running work, a new rhythm for collaboration is emerging. To keep work moving, you need to be able to easily answer a question, review what Codex found, change direction, approve what comes next, or add a new idea.”

OpenAI now has Codex clients on the Mac, Windows, Chrome, and, via this new functionality in ChatGPT for mobile, iPhone, iPad, and Android too. Codex in ChatGPT for mobile can connect to any computer on which you’ve installed Codex and load its live state, letting you work on active threads, approvals, plugins, and project context from anywhere.

Any files that Codex is working on stay on the local machine, as do credentials, permissions, and local setup. You can work across all of your threads, review outputs, approve commands, change models, or start something new on your phone, and it uses a secure layer for connectivity that prevents direct connections from the public Internet. It can also use Remote SSH to access remote managed environments at work.

As examples, OpenAI notes that you can use this new functionality to start investigating a bug while waiting for your coffee, reach a decision point during your commute, head into a fast-moving customer conversation better prepared, and turn a new idea into forward motion while it is still fresh.

Codex in the ChatGPT mobile app is rolling out now in preview on Android, iPhone, and iPad across all plans, including Free and Go, in all supported regions. This initial version lets you connect to the Codex app on macOS, and support for Windows is coming soon.