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Coursera vs PhET
A factual side-by-side comparison of Coursera and PhET. We compare pricing, categories, free tiers and official websites — no invented scores.
Updated 2026-10-22
Quick take
Both Coursera and PhET are Freemium. Pick the one whose tagline and categories match your use case, then check the alternatives below.
University-grade AI and ML courses with certificates
AI CoursesEducation
Visit website| Pricing | Freemium | Freemium |
|---|---|---|
| Categories | AI Courses / Education | Education / Industry LLMs / AI Chat |
| Best for | University-grade AI and ML courses with certificates | PhET: AI Education powered by AI |
| Free tier | Yes — free or freemium | Yes — free or freemium |
| Website | www.coursera.org | phet.colorado.edu |