Codex
The best way to build with agents
Built to drive real engineering work
From routine pull requests to your hardest problems, Codex reliably completes tasks end to end, like building features, complex refactors, migrations, and more, powered by OpenAI’s frontier coding models.
Designed for multi-agent workflows
The Codex app is a command center for agentic coding. With built-in worktrees and cloud environments, agents work in parallel across projects, completing weeks of work in days.
Adapts to how your team builds
With Skills, Codex goes beyond writing code to directly contribute to the work that turns pull requests into products, like code understanding, prototyping, and documentation, aligned with your team’s standards.
Made for always-on background work
With Automations, Codex works unprompted, picking up routine but important work like issue triage, alert monitoring, CI/CD, and more, so you can stay focused on building.
Raises the bar across your team
Codex raises baseline quality with more thorough designs, comprehensive testing, and high-signal code review—so issues are caught early and your team ships with confidence.
