Everything is free

Python runs inside your own browser here, so there is no execution server to pay for and nothing to meter. The whole curriculum is open to anyone with an account.

$0no card, no trial, no limits

All 12 courses and 108 lessons, print() through to shipping an AI service
Both tracks: Python Developer and AI Engineer
All 27 quizzes, with every answer explained afterwards
All 6 capstone projects, graded by hidden tests
Unlimited quiz retries — as many attempts as it takes
A downloadable PDF certificate for every course you finish
Printable cheatsheets for all of it
XP, streaks and badges, if that is the sort of thing that keeps you going

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The account exists so your progress, XP and certificates have somewhere to live. That is the only reason to make one.

Whatever you finish stays yours: progress, XP, badges and certificates are permanent, and the code you write never leaves your machine.