What Is Codex Mobile Access and How Does It Work?
Codex, OpenAI’s AI coding agent that previously required a Mac desktop app, now integrates directly into the ChatGPT mobile app. After scanning a QR code from the Codex Mac app, users can connect their phone to any machine where Codex is running. The mobile interface loads the live state from that environment, allowing seamless cross-device workflow.
What Can You Do With Codex on Your Phone?
The mobile experience goes beyond basic remote control. Users can:
- Approve or reject commands that Codex wants to execute
- Review outputs including code diffs, test results, and terminal output
- Switch between active threads across multiple projects
- Change models powering the Codex agent
- Start new prompts while away from their computer
Files, credentials, permissions, and local setup stay securely on the machine where Codex operates, with only updates flowing to the phone in real time.
Why Does This Matter for AI Agent Development?
This release represents a shift toward AI agents that operate persistently across devices. By untethering supervision from the execution environment, OpenAI enables a workflow where coding agents can run continuously while humans oversee progress remotely. Support for Windows is coming soon.