OpenAI brings Codex to mobile, expands AI coding workflows across devices

OpenAI has officially expanded Codex to mobile devices, allowing users to monitor, manage, and interact with AI-powered coding tasks directly from smartphones through the ChatGPT mobile app.

Announced on May 14, OpenAI said the new mobile integration enables developers and teams to stay connected to active coding workflows running across laptops, remote machines, development environments, and enterprise systems — even while away from their desks.

According to OpenAI, more than four million people now use Codex weekly, with the company seeing growing demand for tools that allow users to quickly review outputs, approve actions, answer prompts, and redirect AI-generated workflows in real time.

The company described the mobile rollout as a “fully-featured mobile experience” that syncs live coding sessions from connected machines directly into the ChatGPT app. This allows users to access active threads, approvals, project contexts, plugins, screenshots, terminal outputs, diffs, and test results from their phones without transferring sensitive files or credentials off the original machine.

OpenAI said Codex uses a secure relay infrastructure that keeps trusted machines reachable across devices without directly exposing them to the public internet, while continuously syncing session states and updates across authorized ChatGPT devices.

The rollout comes as AI companies increasingly push agent-based coding workflows toward long-running AI agents capable of handling extended software engineering tasks with intermittent human supervision rather than continuous manual interaction.

OpenAI highlighted several real-world use cases for the mobile experience, including debugging software while away from a workstation, reviewing AI-generated code during commutes, preparing technical briefings before customer meetings, and quickly turning new ideas into active development tasks while on the move.

The company also announced expanded enterprise-focused capabilities for organizations using managed remote development environments.

With Remote SSH now generally available, Codex can directly connect to enterprise-managed infrastructure, including remote Linux environments, dedicated development machines, and secured corporate systems. OpenAI said the desktop app can automatically detect configured SSH hosts and allow users to launch projects and AI coding threads inside remote environments similarly to local development workflows.

Several new enterprise management and automation features were also introduced, including programmatic access tokens for CI pipelines and internal automations, alongside general availability for Hooks — a customizable framework that allows organizations to validate prompts, scan for secrets, log interactions, create persistent memories, and customize Codex behavior for specific repositories and workflows.

OpenAI also confirmed support for HIPAA-compliant use of Codex within eligible ChatGPT Enterprise environments when operated through local environments such as the Codex CLI, IDE integrations, and desktop applications.

Codex mobile support is currently rolling out in preview on both iOS and Android across all ChatGPT plans, including Free and Go tiers, in supported regions worldwide. OpenAI added that support for connecting phones to the Codex app on Windows is coming soon.

Remote SSH and Hooks are now available across all plans, while programmatic access tokens are limited to Enterprise and Business subscribers.

OpenAI said Codex in the ChatGPT mobile app allows users to remotely monitor and manage coding tasks running on connected laptops, Mac minis, devboxes, and managed remote environments. The company said users can review outputs, approve commands, switch models, access screenshots and terminal outputs, and continue active coding threads directly from iOS and Android devices while files, credentials, and permissions remain on the original machine.