Codex is now accessible in the ChatGPT mobile app, allowing users to stay connected from anywhere while Codex operates across laptops, devboxes, or remote environments.
As agents handle longer-running work, a new collaboration rhythm is taking shape. Keeping work moving requires the ability to quickly answer a question, review findings, change direction, approve next steps, or contribute a new idea.
More than 4 million people now use Codex weekly, and OpenAI is observing how much those brief interactions matter. A quick check-in can keep a thread progressing, prevent unnecessary rework, or help Codex advance with the right context. Now that can happen from a phone.
Stay Connected to Active Work From Anywhere
Codex in the ChatGPT mobile app provides a fully-featured mobile experience. When users connect to any machine where Codex is running-whether a laptop, a dedicated Mac mini, or a managed remote environment-the app loads the live state from that environment, enabling fluid work across active threads, approvals, plugins, and project context.
This goes beyond remotely controlling a single task or dispatching new tasks to a computer. From a phone, users can work across all threads, review outputs, approve commands, change models, or start something new. Files, credentials, permissions, and local setup remain on the machine where Codex operates, while updates flow back to the phone in real time, including screenshots, terminal output, diffs, test results, and approvals.
Under the hood, Codex uses a secure relay layer that keeps trusted machines reachable across devices without exposing them directly to the public internet. That relay also keeps active session state and context synced anywhere a user is signed in with ChatGPT.
Step In When It Matters
As Codex handles work over longer stretches, timely guidance becomes increasingly important for keeping that work useful. From a phone, users can start work when it is top of mind, unblock it when judgment is needed, and stay close to the result as it takes shape.
With Codex on mobile, users can:
- Start investigating a bug while waiting for coffee. Since Codex runs from the development environment, it can begin inspecting relevant files, reproduce the issue in the browser, run tests, and begin working toward a fix. If Codex needs clarification or permission to continue, users can answer or approve from their phone. As it works, they can follow along with screenshots, terminal output, test results, and eventually review the resulting diff before returning to the computer.
- Reach a decision point during a commute. Before leaving for the office, a user asks Codex to take on a refactor that will need time. Mid-commute, Codex finds two viable approaches and needs direction before continuing. From a phone, the user reviews the tradeoffs, chooses a path, and by arrival the task has kept moving in the chosen direction.
- Head into a fast-moving customer conversation better prepared. After back-to-back meetings, a support issue is evolving across Slack, email, documents, and browser-based tools, with a customer call coming up. From a phone, a user can ask Codex to synthesize the latest updates, flag key open questions, and prepare a concise briefing. If new details arrive, Codex can refresh the summary before the call.
- Turn a new idea into forward motion while it is still fresh. Whether at lunch, on a walk, or listening to something that sparks a thought, users can send it to Codex from their phone by starting a new thread or adding it to active work. The task can begin taking shape before returning to a desk, without pulling them fully out of the moment.
Running Codex in Enterprise Environments
Many teams already develop inside managed remote environments that provide approved dependencies, credentials, security policies, and compute resources.
With Remote SSH now generally available, Codex can connect directly into those environments. The desktop app automatically detects hosts from SSH configuration and lets users create projects and run threads inside remote machines just like they would locally.
Once connected, those environments become accessible across authorized ChatGPT devices through the same secure relay infrastructure. That means users can start work on a desktop, steer execution from a phone, and keep long-running tasks moving without staying tied to a single machine.
OpenAI is also releasing several updates that expand how teams can automate, customize, and manage Codex at scale:
- Programmatic access tokens provide scoped credentials that can be issued directly from ChatGPT workspace settings for CI pipelines, release workflows, and internal automations.
- Hooks are now generally available and can be used to scan prompts for secrets, run validators, log conversations, create memories, or customize Codex behavior for specific repositories and directories.
- Support for HIPAA-compliant use of Codex in local environments (CLI, IDE, App) for ChatGPT Enterprise workspaces, enabling healthcare organizations to support patient care and operational workflows with greater speed and confidence.
Availability
Codex in the ChatGPT mobile app is rolling out in preview on iOS and Android across all plans, including Free and Go, in all supported regions. Users can update the ChatGPT mobile app and the Codex app on macOS to try it. Support for connecting a phone to the Codex app on Windows is coming soon.
Remote SSH and Hooks are available on all plans. Programmatic access tokens are available on Enterprise and Business plans. HIPAA-compliant use is supported for eligible ChatGPT Enterprise workspaces only when Codex is used in local environments.