OpenAI has introduced the Codex app for macOS, marking a significant evolution in how developers work with AI agents. The new desktop application transforms Codex from a coding assistant into a comprehensive command center for managing multiple AI agents simultaneously.
Multi-Agent Orchestration
The Codex app addresses the growing complexity of modern software development where developers increasingly orchestrate multiple agents across projects. The application provides a dedicated interface for delegating work, running tasks in parallel, and supervising agents on long-running projects that can span hours, days, or even weeks.
Key features include separate threads organized by projects, allowing seamless context switching between tasks. The app integrates built-in support for worktrees, enabling multiple agents to work on the same repository without conflicts. Each agent operates on an isolated copy of the code, making it possible to explore different approaches without impacting the local git state.
Skills System and Automations
Codex now extends beyond code generation through a skills system. Skills bundle instructions, resources, and scripts that enable Codex to connect to tools, run workflows, and complete complex tasks. The app includes a curated library of skills for popular tools including Figma, Linear, Cloudflare, Netlify, Vercel, and OpenAI APIs.
OpenAI demonstrated the system's capabilities by tasking Codex with creating a complete racing game. Using image generation and web game development skills, Codex autonomously handled design, development, and QA testing, consuming over 7 million tokens from a single initial prompt.
The app also introduces Automations, which allow Codex to work in the background on scheduled tasks. At OpenAI, these automations handle daily issue triage, CI failure summaries, release briefs, and bug checks.
Security and Customization
Security is integrated by design throughout the Codex stack. The app uses native, open-source, and configurable system-level sandboxing. By default, agents are limited to editing files in their working folder or branch, with permission required for elevated operations like network access.
Developers can now choose between two distinct personalities—a terse, execution-focused style or a more conversational, empathetic approach—without any change in underlying capabilities.
Availability and Adoption
The Codex app is available now on macOS for ChatGPT Plus, Pro, Business, Enterprise, and Edu subscribers. For a limited time, Codex is also available to ChatGPT Free and Go users, and OpenAI has doubled rate limits across all paid plans.
Since launching GPT-5.2-Codex in mid-December, overall Codex usage has doubled, with more than a million developers using the platform in the past month. The app will expand to Windows in the future, with ongoing improvements to multi-agent workflows and cloud-based automation triggers.