OpenAI Introduces Codex App for macOS, Expanding Multi-Agent Development in 2026

OpenAI has launched the Codex app for macOS, a new desktop interface designed to help developers manage multiple AI agents in parallel and supervise long-running tasks more efficiently. The app acts as a command center for agentic workflows, allowing users to delegate, review, and collaborate with AI agents across the full software lifecycle.

The release builds on the momentum of GPT-5.2-Codex, OpenAI’s most advanced coding model, introduced in late 2025. With the macOS app, developers can run agents in isolated threads, work on the same repository using built-in worktrees, and review or modify code changes directly within the app or in their IDE. Session history and configurations sync seamlessly with the Codex CLI and IDE extensions.

Beyond code generation, the Codex app introduces “skills” that enable agents to perform broader tasks such as fetching design assets from Figma, deploying apps to cloud platforms like Vercel and Netlify, generating images, managing projects, and creating professional documents. Developers can also set up Automations, allowing Codex to run scheduled background tasks such as bug triage, CI failure summaries, and release reporting.

The app includes configurable agent personalities, enhanced security with sandboxing by default, and flexible permission controls for teams. Codex is available on macOS starting today for ChatGPT Plus, Pro, Business, Enterprise, and Edu subscribers, with limited-time access and higher rate limits extended to Free and Go users. OpenAI says a Windows version is planned, alongside continued improvements to multi-agent workflows and automation capabilities.