Imagine having an inbox for code tasks. You drop a task in, the agent works in the background, and you pick up the result whenever it suits you. That's exactly how the Codex App works.

This isn't a new model. It's still GPT-5.2-Codex. But the way you manage your agents changes everything. You can jump between projects without losing context. You can run multiple agents at the same time. You stay productive.

What is the Codex App?

OpenAI just released a macOS app that fundamentally transforms your development workflows. It's not just another coding tool. It's an agent manager.

The app connects to the Codex CLI, shares history, and uses the same config. But it gives you a UI specifically built to manage multiple projects in parallel. One developer reported buying a second laptop just because of it. Exclusively for the Codex App.

How it differs from Cursor and Claude Code

Cursor is an IDE. Claude Code is a terminal tool. Codex App is an agent orchestrator.

The difference? You no longer write code directly. You manage agents that write code for you. You stay in context, even when switching between five different projects.

Key Features

Parallel Work: Launch multiple agents simultaneously. Not just across different projects, but also within the same project using worktrees.

Worktrees: Work on two features at the same time in the same repo. The implementation isn't perfect yet, but the concept is powerful.

Cloud Environments: Offload a task to the cloud, let it run there, and pick up the result as a pull request. No local setup needed.

Automations: Cron jobs with prompts. Let the app automatically write changelogs, summarize CI failures, or scan for bugs. Every day at the same time.

Skills Browser: Pre-built integrations for Cloudflare, Linear, Atlas, and more. Even a "Yeet" skill that automatically stages, commits, and opens a PR.

The Only Real Drawback

Speed. The TPS (tokens per second) is slow. That's due to the model, not the app. But OpenAI is investing $10 billion in Cerebras, so that issue should be resolved soon.

Honestly, though? Speed isn't a dealbreaker. You simply start multiple agents at the same time. While one is thinking, you work on something else. You never wait.

My Personal Workflow

I use all three tools. Google Gemini for UI and quick iterations. Claude Code and Codex for the tough problems.

Since yesterday, Codex has been my favorite. But that will likely change again. These tools are evolving so fast that you have to stay flexible.

What matters: The Codex App solves a real problem. Working on multiple projects in parallel used to be tedious. Now it's easy.

Who is the Codex App for?

You work on multiple projects simultaneously? You want to commit code, not just tinker around? You need an overview of all running tasks?

Then the Codex App is for you. It costs ~$30 a month (part of the ChatGPT Plus/Pro subscription), and the limits are generous. I used it heavily for a full day and didn't hit any limits.