From routine pull requests to your hardest problems, Codex reliably completes tasks end to end, like building features, complex refactors, migrations, and more, powered by OpenAI’s frontier coding …

Aug 10, 2021 · We’ve created an improved version of OpenAI Codex, our AI system that translates natural language to code, and we are releasing it through our API in private beta starting today.

The Codex CLI is available on macOS and Linux. Windows support is experimental. For the best Windows experience, use Codex in a WSL workspace and follow our Windows setup guide.

Feb 2, 2026 · Introducing the Codex app for macOS—a command center for AI coding and software development with multiple agents, parallel workflows, and long-running tasks.

5 days ago · The Codex app makes managing and directing agents much easier, and now with GPT‑5.3-Codex it’s more interactive. With the new model, Codex provides frequent updates so you …

The Codex app is a focused desktop experience for working on Codex threads in parallel, with built-in worktree support, automations, and Git functionality. ChatGPT Plus, Pro, Business, Edu, and …

This lets Codex work with the code in your repositories and create pull requests from its work. Your Plus, Pro, Business, Edu, or Enterprise plan includes Codex.

The TypeScript library provides a way to control Codex from within your application that is more comprehensive and flexible than non-interactive mode. Use the library server-side; it requires …

May 16, 2025 · Technical teams at OpenAI have started using Codex as part of their daily toolkit. It is most often used by OpenAI engineers to offload repetitive, well-scoped tasks, like refactoring, …

Review code: Codex analyzes code to identify potential bugs, logic errors, and unhandled edge cases. Debug and fix problems: When something breaks, Codex helps trace failures, diagnose root causes, …