OpenAI launches Codex app for macOS

OpenAI has launched the Codex app for macOS, a control center for working with multiple AI agents at the same time. The app lets you assign tasks, run them in parallel and review changes without losing context for each project.

Codex could already help you write code from the command line, the web or an editor. The new app tackles a different problem: how to supervise multiple agents working for hours or days without turning the project into chaos.

A control center for agents

Each agent works in a separate thread organized by project. You can switch from one task to another, review what it has changed, comment on the differences and open the result in your editor to make manual changes.

The app also supports worktrees, a Git feature that creates isolated copies of the same code. This lets several agents work on a repository at the same time without overwriting one another's changes.

For example, one agent can prepare a new feature, another can fix bugs and a third can update the documentation. Each works in its own copy, and you decide which changes to bring into the main project.

Codex also retrieves the history and settings you already use in the command line or editor extension. You do not have to start from scratch.

From writing code to completing tasks

OpenAI is expanding Codex's role. It is no longer presented only as a tool for generating code, but as an agent that can use code and tools to handle broader tasks.

The key is skills, packages that combine instructions, resources and scripts so Codex can follow specific processes. They can be used to:

• Turn Figma designs into production-ready interfaces.
• Organize bugs, launches and tasks in Linear.
• Deploy applications on Cloudflare, Netlify, Render or Vercel.
• Create images for websites, prototypes and video games.
• Read and generate PDF files, spreadsheets and Word documents.
• Consult up-to-date documentation when developing with OpenAI APIs.

These capabilities are not limited to the app. Skills you create can also be used from the command line or editor extension, and saved in a repository for the entire team to use.

OpenAI says Codex managed to create a racing game with eight maps, multiple drivers and items usable during gameplay from a single initial instruction. To do so, it used more than 7 million tokens, meaning units of text processed by the model, and handled design, development and testing tasks.

Automations and broader access

The app lets you schedule automations so Codex can work in the background. You can configure it to check for bugs every day, summarize integration failures, prepare launch reports or detect outstanding issues.

When it finishes, the result appears in a review queue. The idea is not for AI to publish changes without oversight, but for it to handle repetitive tasks on its own and leave you with the result ready to review.

You can also choose between two interaction styles: one brief and focused on execution, and another more conversational. You can change the option with the /personality command in the app, command line and editor extension.

Security relies on a configurable isolation system. By default, agents can only modify files within the folder or branch where they are working and use cached web searches. To perform actions with additional permissions, such as accessing the network, they must request authorization, although teams can define their own rules.

Who can use it

The app is available for macOS starting today. Users of ChatGPT Plus, Pro, Business, Enterprise and Edu can access Codex with their account in the app, on the web, from the command line and through the editor extension.

For a limited time, Codex will also be available to Free and Go accounts. OpenAI also says it will double the usage limits for existing paid plans during this period. If you need more capacity, you will be able to purchase additional credits.

According to the company, more than one million developers used Codex during the last month, and total usage doubled after the launch of GPT-5.2-Codex in mid-December.

For you, the most important change is not simply having another place to write code. It is being able to delegate several parts of a project, let them move forward in parallel and focus on reviewing decisions and results. OpenAI plans to bring the app to Windows and add cloud triggers so automations keep running even when your computer is turned off. The challenge will be determining how much control and oversight this autonomous work really requires as projects grow larger.