OpenAI Codex
OpenAI's coding agent for building, reviewing, and shipping software across desktop, web, command-line, IDE, and cloud workflows.
What is OpenAI Codex?
Codex can inspect a repository, edit files, run commands and tests, review code, and work on multiple engineering tasks in isolated worktrees or cloud environments. Its interfaces include the Codex app, web, CLI, and IDE extensions, with support for reusable skills, plugins, hooks, automation, and collaborative integrations. Teams can use it interactively or delegate longer-running work while retaining the changed files and execution evidence for review.
Best for
Software teams that want a coding agent spanning local development, parallel task execution, code review, automation, and cloud delegation.
Not for
Projects where an agent would receive unbounded credentials, merge authority, or production access without human review and environment safeguards.