OpenAI released Codex remote access inside the ChatGPT mobile app for iPhone, iPad, and Android. Users can now approve tasks, review outputs, and start new prompts from their phone while Codex runs on their Mac, devbox, or remote environment. The feature supports live state syncing including screenshots, terminal output, diffs, and test results.
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.
Key Takeaways
- Codex remote access is available now in the ChatGPT mobile app for iOS and Android
- Requires the latest Codex for Mac and ChatGPT mobile app versions
- Supports live state syncing: screenshots, terminal output, diffs, test results, approvals
- Your files and credentials stay on the host machine; only updates flow to your phone
- Windows support is coming soon
Frequently Asked Questions
Do I need a separate subscription for Codex mobile? No, Codex mobile access is included with your existing Codex subscription. You just need the latest versions of both Codex for Mac and the ChatGPT mobile app.
Can I use Codex mobile to run tasks on Windows? Not yet. OpenAI says support for remotely controlling Codex for Windows will follow in a future update.
Is my data secure when using remote access? Yes. Files, credentials, permissions, and local setup remain on the machine where Codex is operating. Only screenshots, terminal output, diffs, and approval requests are sent to your phone.