OpenAI Academy Launches Guide for Codex AI Coding Tool

So, on April 23, 2026, OpenAI Academy put out a detailed guide on how to use Codex, which is this AI coding helper that works with ChatGPT. Users need to download the Codex app and log in with their ChatGPT info. Codex organizes tasks into threads and projects, each tied to specific folders on your device. It’s best to create a special Codex folder with subfolders for different projects and move your files there. The guide suggests kicking things off with simple tasks, like tidying up notes or cleaning datasets. For starters, use the default Codex model, with more advanced reasoning for tougher jobs. Permissions are set to "Work locally" by default, so it only accesses that folder. A sample prompt is: "Check this folder and tell me what you find. Then suggest a small task you can do safely. Wait for my go-ahead before making changes." The guide really emphasizes starting small and checking Codex's work to build up trust.