What is Codex?

What it is

Codex is a tool for software work. You describe a task, such as fixing a bug or adding a small feature, and it studies the project's code, edits the files and can run commands to check the result. A command-line tool is a program you use by typing in a terminal. Codex also has editor extensions, and tasks started in ChatGPT run in a cloud copy of the project.

It belongs to the family of agentic AI tools: it works through a task in steps instead of replying once. It is made by OpenAI. As with any AI assistant, its work looks finished even when it is not, so the result has to be read and tested before anyone relies on it.

Why it matters to a business

• Time on routine tasks: repetitive edits and small fixes can be drafted quickly.
• Limits on commands: the commands it runs change real files, so decide in advance what it is allowed to do.
• Review: code written by an agent needs the same review as code written by a person, and sometimes more.
• Records: keeping the project in Git shows exactly what changed and allows a rollback.

How KawaConnect works with Codex

Our engineers use Codex alongside Claude Code when building software, picking whichever suits the task. Whichever tool drafted it, no change ships until a person has reviewed it, and the keys these tools need are kept in a password manager. That applies across our software and AI and automation work. We are not an OpenAI partner or reseller.

Learn more

• CodexOpenAI's page for the tool, for owners who want to see what it is meant to do.
• Codex developer documentationThe reference for engineers who will install it and set its permissions.