Codex App 2026 Latest Release: ChatGPT Codex App Desktop Features, Download & Installation Tutorial and Usage Guide (Updated February) ​

Sam Altman announced on X yesterday that the Codex App desktop version is officially released, launching first on Mac (Windows version coming soon). OpenAI has launched the ChatGPT Codex App, with a limited-time free trial, designed to give developers a top-tier AI coding assistant that fully rivals and surpasses Claude Code.

On February 2, 2026, OpenAI officially released the ChatGPT Codex App (the Codex App desktop application), a dedicated AI coding agent client built for macOS. As OpenAI's "most beloved product" internally, the Codex App takes AI agent capabilities to new heights, supporting multi-task parallelism, automated workflows, and deep IDE integration, delivering a revolutionary coding experience for developers.

This article provides a complete breakdown of Codex App core features, characteristics, Codex App download & installation tutorial, and practical guides to help you quickly master this top-tier AI coding tool.

Table of Contents ​

• 1. What is the ChatGPT Codex App?
• 2. Codex App Desktop Core Features & Characteristics
• 3. How to Download & Install ChatGPT Codex App
• 4. ChatGPT Codex App Usage Guide
• 5. Codex App Pricing & Limited-Time Free Policy
• 6. Codex App vs Cursor, Claude Code
• 7. Codex App FAQ
• 8. Summary & Usage Recommendations

1. What is the ChatGPT Codex App? ​

The ChatGPT Codex App (abbreviated as Codex App) is OpenAI's professional AI coding agent. It was first integrated into the ChatGPT web version in 2025, followed by the Codex CLI. This standalone Codex App desktop version now becomes the true "command center," letting you manage multiple AI agents simultaneously and effortlessly handle complex software development tasks.

Unlike code completion tools such as GitHub Copilot, the Codex App is a truly autonomous coding agent — it doesn't just write code; it can independently run tests, fix bugs, generate pull requests, install dependencies, and refactor entire projects across files. Core positioning: it upgrades from a "code completion tool" to a "virtual software engineer."

Codex App also offers a limited-time free bonus!

🎯 Codex App Limited-Time Policy (February–April 2026) ​

The free-tier trial quota is limited. For full projects, automation, and Skills features, we recommend upgrading to Plus or Business. The author simultaneously uses Plus + Business + double quota, which equals the usage of four Plus accounts — handling everyday projects with zero stress.

2. Codex App Desktop Core Features & Characteristics ​

1. Multi-Agent Parallelism ​

The Codex App's biggest highlight: it supports running multiple agents simultaneously. Each agent runs in an independent thread, isolated per project, without interfering with each other. You can process different tasks in parallel (e.g., one refactors code while another writes tests), seamlessly switching context.

2. Native Git Worktree Support ​

The Codex App has built-in Git Worktree:

• Each agent uses an independent copy of the code to avoid conflicts
• Supports multiple agents operating on different branches of the same repository simultaneously
• View diffs, add comments, and commit in stages at any time

3. Automations ​

Set up scheduled tasks to run in the background with Codex App:

• Automatically generate code review reports
• Check code standards daily
• Task results automatically go to the "inbox"

4. Skills Library ​

The Codex App supports extensible skills. The skills store provides meta-skills such as "Create Skill" and "Skill Installer."

Six pre-installed OpenAI-verified skills:

• 🎨 Design-to-code (Figma to code automatically)
• 📊 Project management (deep Linear integration)
• 🚀 Cloud-native deployment (Vercel / Netlify / Cloudflare / Render one-click launch)
• 🖼️ Visual generation (powered by GPT Image)
• 📑 Document processing (smart PDF/Excel/Word read & write)
• 🔌 API development (real-time OpenAI official documentation integration)

5. Deep IDE Integration ​

Seamless sync with VS Code, Cursor, and Windsurf, automatic context awareness, and cross-platform session history synchronization.

6. Local & Cloud Dual Modes ​

• Local mode: code is not uploaded to the cloud — ideal for sensitive projects
• Cloud mode: uses OpenAI cloud containers — ideal for compute-intensive tasks

3. How to Download & Install ChatGPT Codex App ​

System Requirements ​

• macOS (only Apple Silicon M1/M2/M3/M4 chips)
• ChatGPT account (limited-time free trial)
• Windows version coming soon; for now, Windows users can use Codex CLI

Codex App macOS Installation Steps ​

Step 1: Download
Visit the official OpenAI website Codex download page, and click "Download for macOS" to get the .dmg file.

Step 2: Install & Sign In

1. Drag the app into the Applications folder
2. On first launch, sign in with your ChatGPT account (Google/Microsoft authorization supported)
3. No need to manually enter an API Key — permissions sync automatically

Step 3: Choose a Project
Select a local project folder; historical projects sync automatically.

Step 4: Start Using
Toggle Local / Cloud mode in the top-left corner, then type your requirements.

Codex CLI Installation (Command Line) ​

# npm installation (recommended)
npm install -g @openai/codex

# or Homebrew
brew install codex

# verify
codex --version

On first run, the browser opens automatically for sign-in, and the token is saved to ~/.codex/token.

4. ChatGPT Codex App Usage Guide ​

Basic Scenarios ​

Code review:
"Review the code quality of this project, find performance bottlenecks, and give optimization suggestions."

Feature development:
"Add JWT user authentication to the project, including login, registration, and middleware."

Bug fixing:
"Fix the npm test errors and make sure all tests pass."

Code refactoring:
"Migrate the project from JavaScript to TypeScript."

Advanced Tips ​

• Worktrees: Start a new agent thread → an independent worktree is created automatically → review changes and selectively merge
• Automation setup: Create new tasks in the Automations tab, set trigger conditions and permissions
• Permission modes: Ask / Auto Edit / Full Auto — three levels of control

5. Codex App Pricing & Limited-Time Free Policy ​

Limited-Time Free Trial (February–April 2026) ​

• Free users & Go users: full Codex App experience
• Paid users: 2x rate limits

Official Pricing (after the trial period) ​

For users in China, we recommend the reliable top-up channel: gptplus.org.cn

6. Codex App vs Cursor, Claude Code ​

With multi-agent parallelism and automated workflows, the Codex App far outperforms competitors on large projects.

7. Codex App FAQ ​

Q1: When will Windows users get it?
A: The Windows version is in development and is expected to be released within a few months. For now, you can use WSL + Codex CLI.

Q2: Will the Codex App replace programmers?
A: No. It's a productivity-enhancing tool suited for repetitive tasks, allowing developers to focus on architecture and innovation.

Q3: Is my code secure?
A: In local mode, code never leaves your device; in cloud mode, OpenAI does not use your data for training; the enterprise version is SOC 2 compliant.

Q4: How can users in China use it?
A: As long as you can access ChatGPT normally, you can download and use it.

Q5: What's the difference from GitHub Copilot?
A: Copilot is a completion tool, while the Codex App is an autonomous agent that can complete end-to-end tasks.

8. Summary & Usage Recommendations ​

The release of the ChatGPT Codex App (the Codex App) marks the arrival of the "multi-agent collaboration" era in AI programming. Right now is the best time to try it — limited-time free + double quota, so we strongly recommend downloading and trying it now!

Recommendations:

• Beginners should start with Ask mode
• For large projects, enable multi-agent + Automations
• For sensitive code, prioritize local mode

Codex App download link (official): openai.com/codex

Go try the Codex App now and boost your coding efficiency more than 10x! If you have any questions, feel free to share them in the comments ~