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Notes on learning AI, newest first.

Free AI courses with a certificate: what to check before you start one13 October 2026 · Many free AI courses give a certificate of completion, but often only the lessons are free, and the certificate shows that you finished, not that you passed an exam. Before you start, check four things: what is really free, what the certificate says, how long it takes, and whether you end up with something you can use.