Overview
OpenAI has added a new entry to its macOS app lineup – the Codex app – designed as a focused hub for agentic coding. The app works alongside the existing ChatGPT and Atlas apps, providing a seamless workflow that bridges Codex, integrated development environments (IDEs), and the Terminal.
Key Features
- Project‑based agent threads: Agents run in separate threads organized by projects, allowing quick context switching.
- Integrated diff review: View changes, comment on diffs, and open files directly in your preferred editor.
- Worktree support: Multiple agents can operate on isolated copies of the same repository, preventing git conflicts.
- Session continuity: The app imports session history and configuration from the Codex CLI and IDE extension.
Automation
Codex automations let you schedule background tasks that combine instructions with optional skills. When an automation finishes, results appear in a review queue for you to act on.
Availability & Pricing
To celebrate the launch, OpenAI is temporarily doubling rate limits for Plus, Pro, Business, Enterprise, and Edu users. The Codex app is now available to ChatGPT Free and Go users, with broader access for paid tiers.
How to Get Started
Download the Codex macOS app from OpenAI’s website and follow the setup guide to connect it with your existing projects. A detailed blog post provides additional insights and tips.