OpenAI on Monday launched the Codex app for macOS, a new interface designed to manage multiple agents simultaneously, run tasks in parallel, and coordinate long-running projects. The app supports single-agent edits as well as orchestrating teams of agents across the full software lifecycle, including designing, building, shipping, and maintaining applications.
Codex app
The Codex app serves as a central workspace for developers coordinating multiple agents. Since the introduction of Codex in April 2025, developers have been using agents to handle complex tasks end-to-end. Traditional IDEs and terminal tools are not optimized for multi-agent workflows, so the app provides an environment to monitor tasks, review changes, and maintain context across projects.
Agents operate in separate threads organized by project, with built-in worktree support to allow multiple agents to work on the same repository without conflicts. Each agent works on an isolated copy of the code, and developers can check out changes locally or allow the agent to continue independently. Session history and configuration from the Codex CLI and IDE extension are automatically available in the app.
Features
- Multi-agent workflows: Developers can run multiple agents in parallel, review code modifications, comment on diffs, and open edits in their preferred editor.
- Skills: Codex supports skills to extend functionality beyond code generation. Skills bundle instructions, scripts, and resources so agents can reliably use tools, execute workflows, and complete tasks. Prebuilt skills include:
- Implement designs: Convert Figma assets and context into production-ready UI code.
- Manage projects: Track bugs, releases, and team workload in Linear.
- Deploy to cloud: Deploy web applications to Cloudflare, Netlify, Render, and Vercel.
- Generate images: Create and edit images using GPT Image for websites, UI mockups, or game assets.
- OpenAI APIs: Reference updated documentation when building with OpenAI APIs.
- Create documents: Read, create, and edit PDFs, spreadsheets, and Word files with structured formatting.
- Automations: Schedule recurring tasks to run in the background. Completed tasks appear in a review queue for validation or follow-up. Common uses include issue triage, CI failure summaries, bug checks, and release briefs.
- Personalities: Developers can choose between a concise, pragmatic style or a conversational, empathetic style using the
/personalitycommand in the app, CLI, or IDE extension.
Security
The Codex app uses security by design with native, open-source, system-level sandboxing. Agents are limited to editing files in their working folder or branch by default. Elevated operations, such as network access, require explicit permission. Teams can configure rules to allow certain commands to run automatically with elevated permissions.
Outlook
OpenAI said that enterprises and developers are increasingly relying on Codex for end-to-end development. Since the launch of GPT‑5.2-Codex in mid-December 2025, overall usage has doubled, with more than a million developers using it in the past month.
The company stated it will continue expanding where and how developers can use Codex, including making the app available on Windows, advancing model capabilities, rolling out faster inference, refining multi-agent workflows based on user feedback, and building cloud-based Automations so Codex can run continuously in the background.
Availability and Pricing
The Codex app is available now on macOS. ChatGPT Plus, Pro, Business, Enterprise, and Edu subscribers can access Codex across the app, CLI, IDE, and web with their existing ChatGPT login. Usage is included in subscriptions, with additional credits available for purchase.
OpenAI says that, for a limited time, ChatGPT Free and Go users can also access Codex, and usage limits for all paid plans have been temporarily increased. Users can sign up to receive notifications when the Codex app becomes available for Windows and Linux.