AI Briefing
KO

What is Codex

·2026.04.23 19:00

Key point

Codex is an AI agent that performs real work across files and tools on your behalf.

Details

Codex isn't a tool that just answers questions—it's an AI agent you can actually delegate work to. While ChatGPT is strong at organizing thoughts and drafting, Codex moves work forward across files, tools, and repetitive workflows.

It's not just a tool for developers, either. It's especially useful for gathering information from multiple sources, creating and updating files, and producing outputs like documents, slides, and spreadsheets. It connects with tools to take action directly and carries the tasks you hand off to it through to completion.

Example tasks include:

  • Gathering information from email, Slack, notes, and dashboards
  • Building slide decks from source material
  • Creating a digital assistant that organizes your day
  • Building simple dashboards, apps, and landing pages
  • Fixing broken workflows, updating batches of files, and automating repetitive tasks

However, Codex doesn't replace judgment. Like a capable assistant taking on a task for the first time, it's fast and helpful, but you have to decide what matters and review the final results yourself.

In short, ChatGPT is the tool for organizing your thoughts, and Codex is the tool for actually getting the work done. At the end, you can learn more through additional guides and resources from OpenAI Academy.

This summary was generated automatically by AI. Check the original for the author's claims and context. Copyright belongs to the original author.

Our guide explains how the AI works. Report summary errors, attribution issues, or removal requests via Contact.