CodexStrong

OpenAI

OpenAI's coding agent in ChatGPT and CLI that writes code, fixes bugs, and opens pull requests.

Included on ChatGPT Go/Plus/Pro/Business; also pay-as-you-go

Open sourceAPILocal

BREAF's verdict

Why BREAF recommends (or doesn't) Codex, the full guide, and the sources it was checked against are Premium.

Details

Free tier

Basic/limited Codex access on the ChatGPT Free plan

Commercial use

Included in every plan

Platforms

cli, mac, windows, linux, vscode-extension, web

License

Apache-2.0

First released

2025-04-16

API docs

Available

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Members-only

Premium members can see and join the discussion on Codex.