Introducing the Codex app

*March 4, 2026 update: *The Codex app is now available on Windows.

Today, we’re introducing the Codex app for macOS—a powerful new interface designed to effortlessly manage multiple agents at once, run work in parallel, and collaborate with agents over long-running tasks.

We're also excited to show more people what's now possible with Codex. For a limited time we're including Codex with ChatGPT Free and Go, and we're doubling the rate limits on Plus, Pro, Business, Enterprise, and Edu plans. Those higher limits apply everywhere you use Codex—in the app, from the CLI, in your IDE, and in the cloud.

The Codex app changes how software gets built and who can build it—from pairing with a single coding agent on targeted edits to supervising coordinated teams of agents across the full lifecycle of designing, building, shipping, and maintaining software.

Since we launched Codex in April 2025, the way developers work with agents has fundamentally changed. Models are now capable of handling complex, long-running tasks end to end and developers are now orchestrating multiple agents across projects: delegating work, running tasks in parallel, and trusting agents to take on substantial projects that can span hours, days, or weeks. The core challenge has shifted from what agents can do to how people can direct, supervise, and collaborate with them at scale—existing IDEs and terminal-based tools are not built to support this way of working.

This new way of building coupled with new model capabilities demands a different kind of tool, which is why we are introducing the Codex desktop app, a command center for agents.

The Codex app provides a focused space for multi-tasking with agents. Agents run in separate threads organized by projects, so you can seamlessly switch between tasks without losing context. The app lets you review the agent’s changes in the thread, comment on the diff, and even open it in your editor to make manual changes.

It also includes built-in support for worktrees, so multiple agents can work on the same repo without conflicts. Each agent works on an isolated copy of your code, allowing you to explore different paths without needing to track how they impact your codebase. As an agent works, you can check out changes locally or let it continue making progress without touching your local git state.

The app picks up your session history and configuration from the Codex CLI and IDE extension, so you can immediately start using it with your existing projects.

Codex is evolving from an agent that writes code into one that uses code to get work done on your computer. With skills, you can easily extend Codex beyond code generation to tasks that require gathering and synthesizing information, problem-solving, writing, and more.

Skills bundle instructions, resources, and scripts so Codex can reliably connect to tools, run workflows, and complete tasks according to your team’s preferences. The Codex app includes a dedicated interface to create and manage skills. You can explicitly ask Codex to use specific skills, or let it automatically use them based on the task at hand.

We asked Codex to make a racing game, complete with different racers, eight maps, and even items players could use with the space bar. Using an image generation skill (powered by GPT Image) and a web game development skill, Codex built the game by working independently using more than 7 million tokens with just one initial user prompt. It took on the roles of designer, game developer, and QA tester to validate its work by actually playing the game.

At OpenAI, we’ve built hundreds of skills internally to help multiple teams confidently delegate work to Codex that would otherwise be hard to define consistently—from running evals and babysitting training runs to drafting documentation and reporting on growth experiments.

The Codex app includes a library of skills for tools and workflows that have become popular at OpenAI, including implementing designs from Figma, managing projects in Linear, deploying to cloud hosts like Vercel, and generating professional documents.

With the Codex app, you can also set up Automations that let Codex work in the background on an automatic schedule. When an Automation finishes, the results land in a review queue so you can jump back in and continue working if needed.

Codex now lets developers choose between two personalities—a terse, pragmatic style and a more conversational, empathetic one, to fit the approach you like the most. Just use the /personality command in the app, CLI, and IDE extension.

We’re integrating security by design across the entire Codex agent stack. The Codex app uses native, open-source and configurable system-level sandboxing. By default, Codex agents are limited to editing files in the folder or branch where they’re working and asking for permission for elevated tasks.

The Codex app is available starting today on macOS and Windows. Usage is included in ChatGPT subscriptions, with the option to purchase additional credits if needed.