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Free public beta until December 4, 2026: every course is open, no card needed. After that, the first chapter of each course stays free and full access is a one-time $39 ($19 for up to 100 founding members chosen for helpful feedback). Your progress is kept. How the beta works

Terms of use

Last updated 2026-10-01

ai-teacher is operated by Michael Russo. By creating an account or using the site you agree to these terms.

Your account

  • You must be 13 or older to create an account. If you are under 18, a parent or guardian must agree to these terms for you.
  • Keep your password private. You are responsible for what happens under your account.
  • One account is for one person. Do not share or resell access.

What you can do with the courses

The lessons, questions, figures and interactive activities belong to Michael Russo. You may use them for your own learning. You may not copy, republish, scrape or resell them, or use them to train or build a competing product.

Paid access

Some content is free. The rest is unlocked by a one-time purchase that does not renew. Payment is handled by Stripe; we never see or store your card details. See the refund policy.

AI features

AI features are optional and run on an AI provider key that you supply. Your provider's own terms and charges apply. AI replies can be wrong; graded answers on this site are checked by our own software, not by an AI model.

Acceptable use

  • Do not try to break, overload or gain unauthorized access to the site.
  • Do not use automated tools to download content or submit answers in bulk.
  • Keep names, notes and feedback you submit lawful and civil.

We may suspend an account that breaks these rules.

No guarantee

We work to keep the material accurate and the site available, but both are provided as they are, without warranty. The site is a study aid; it does not grant credit, a degree or a certification. To the extent the law allows, our liability to you is limited to the amount you paid us.

Changes

If these terms change in a way that matters, we will update the date above and, for account holders, say so on the site. Questions: mike@russo-dev.com.