OpenAI Codex CLI

OpenAI's open-source terminal coding agent with a cloud service.

Codex CLI is OpenAI's open-source coding agent that runs locally in the terminal and can read, modify, and execute code in a sandboxed environment. It supports configurable approval modes that control how much it can do without human confirmation and integrates with OpenAI models. It is OpenAI's terminal-based counterpart to other agentic coding tools.