OpenAI is going to let users access Codex, its desktop AI tool that can write code and use apps on your computer, from the ChatGPT app on your phone.

Codex in the ChatGPT mobile app lets you use your phone to tell Codex on your computer to work on a task. With your phone, you can “work across all of your threads, review outputs, approve commands, change models, or start something new” in Codex, according to a blog post. “Your files, credentials, permissions, and local setup stay on the machine where Codex is operating, while updates flow back to your phone in real time, including screenshots, terminal output, diffs, test results, and approvals.”

The feature is rolling out now as a preview on iOS and Android for all ChatGPT plans, including the free plan and the more affordable Go plan.