A world-class tutor for every home. Built by top learning experts from MIT and Harvard.
by ACS WASC
5-star app store reviews
learners around the world
Unlike other AI chatbots and homework help tools, Koji never just gives you the answer. He ensures you actually understand math.
You learn with Koji on a shared interactive canvas. He asks guiding questions, sketches on your screen, gives hints, and provides visual help.
Like the best human tutors, he gets to the heart of where you’re getting stuck, and works with you until you can solve hard problems yourself.
Koji tracks what you’ve mastered and what you’ve missed, then builds your learning plan around the gaps.
He gets you caught up on any shaky fundamentals, and personalizes your practice and review sessions to optimize your learning.
He accelerates your learning plan when you’re ready, and slows down when you need it.
Visual dashboards make it easy to see what clicked, what’s still difficult, and what to do next.
Parents and learners also receive regular notifications, with an overview of completed lessons, performance on mastery assessments, learning strengths, and areas that need more practice.


Say goodbye to the chore of finding a tutor, driving to sessions, and fitting another thing into your schedule. Koji is there Sunday night before the test, Saturday morning for fun, and the quiet 20 minutes before dinner.
Get a year of tutoring for the price of a few in-person sessions.


Our curriculum is crafted by award-winning teachers, subject-matter experts, and learning designers from top institutions.

Every student gets an interactive, personalized learning program – one that sees what they’re doing, gives custom feedback, and assesses for mastery. It fits into your classroom, or as homework.
Free for individual classrooms. District pricing available on request.
Brilliant is a member in the kidSAFE Seal Program. To learn more, click on the seal or go to www.kidsafe.com.
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