Codex CLI

OpenAI's lightweight coding agent that runs in your terminal

OpenAI's lightweight coding agent that runs in your terminal. Built for: Developers already using OpenAI who want a local coding agent. Format: CLI. License: Apache-2.0. Open source on GitHub (128,665 stars as of 2026-10-11).

Available on

CLI

Pricing

Free and open source; self-hosting, model or API costs may apply

Free tier available

free pricing

Price checked Oct 12, 2026

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