# Codex
URL: https://wwadd.dev/tools/codex · Official site: https://openai.com/codex
Kind: AI coding agent · License: Open source · Last verified: 2026-09-28

OpenAI's coding agent, available as an open-source CLI and as a cloud agent that works on tasks in parallel sandboxes.

Reach for it when:
- Delegating well-scoped coding tasks
- Terminal-based AI assistance

Worth knowing: The CLI is open source; model usage requires a ChatGPT plan or API key.

Repository: https://github.com/openai/codex
Recorded SPDX baseline: Apache-2.0