Codex Goes Mobile: Code Anywhere, Anytime

OpenAI has expanded access to its Codex coding application, enabling all ChatGPT users to utilize it on their Android and iOS devices. This new feature functions through the ChatGPT mobile app, acting as an intermediary for remote access to coding projects. Your files, credentials, and permissions remain secure on the machine where Codex is running, such as a Mac mini or a company-managed server.

This mobile integration allows users to receive updates, including screenshots and test results, while away from their primary workstation. They can also prompt Codex from their phones, enabling continuous project progress and reducing downtime. OpenAI ensures security through a relay layer that keeps trusted machines reachable without direct internet exposure, syncing active session state and context across devices.

The move mirrors competitor offerings and aligns with OpenAI's broader strategy for a unified desktop application integrating ChatGPT, Codex, and its Atlas web browser. This mobile accessibility is a significant step towards a cohesive platform experience accessible from anywhere. Support for the Windows app is expected soon.