Demo Explore two complete courses. Your reading progress is saved in this browser.

Create a course

Choose what you want to learn. AI will propose a course plan; review it before the lessons are written.

A preview of the full application

Course creation and AI settings are available in the local application. These controls are disabled in the public demo. Explore the prepared courses and try the exercises instead.

Library

What would you like to learn?

Describe the topic, your current knowledge, and what you want to be able to do. Up to 2,000 characters.

Course language

AI chooses the number of lessons to suit your topic. You will review the plan before generating the material.

The selected model uses your local Codex account to plan the course and may research online. After you approve the plan, it writes the lessons. Covers and any requested lesson illustrations use your account's image allowance. Review the finished material before adding it to your library.