Brilliant and Khan Academy both help students learn STEM, but they take fundamentally different approaches to how learning happens. Brilliant is built around active problem solving — students learn by doing, guided through visually rich, interactive lessons that build genuine conceptual understanding. Khan Academy is built around instructional content — students watch video explanations and then practice. Both are valuable tools, but they serve different kinds of learners and different goals.
Comparison table: Brilliant vs. Khan Academy
| Feature | Brilliant | Khan Academy |
|---|---|---|
| Learning approach | Interactive, guided problem solving — learn by doing | Instructional videos followed by practice — learn by watching |
| Best for | Students who want to genuinely understand STEM and develop lasting critical-thinking skills | Students who want free, broad academic support across many school subjects |
| Subject focus | Math and coding, with data science and broader STEM topics | Broad academic coverage, including humanities, arts, and test prep |
| Depth vs. breadth | Deep conceptual focus on STEM, including enrichment topics well beyond school | Wide curriculum coverage across traditional school subjects |
| Learning experience | Hands-on interactives with real-world applications that make ideas click | Explanations and worked examples that show how to solve problems |
| AI tutor | Koji — a curriculum-aware tutor built into courses; guides your thinking without giving away answers | Khanmigo — an AI assistant for tutoring, brainstorming, and broader conversation |
| Response to mistakes | Designed to make challenge and mistakes feel like part of the discovery process | More explanation-and-practice oriented |
| Grade-level flexibility | Not locked to grade labels — students can explore topics at their own readiness level | More closely tied to grade-level progression and school subjects |
| Who can use it | Most kids ready around age 10; curious kids as young as 7–8 with arithmetic basics can thrive. Also built for adults. | Primarily K-12 students, with some adult content |
| Pricing and access | Free tier available; Premium plans for individuals and families | Completely free (Khanmigo requires a separate paid subscription) |
What is the difference between Brilliant and Khan Academy?
The biggest difference is what happens in a learner's mind. On Khan Academy, students typically watch an explanation and then practice repeating it. On Brilliant, students encounter a challenge first and work through it — guided by visuals, interactives, and real-world context — so understanding develops through doing rather than watching.
That distinction matters more than it might seem. Students who learn by actively solving problems tend to retain concepts longer, recognize when and how to apply them, and build the kind of flexible thinking that transfers to new challenges. Students who learn primarily through videos can absorb a lot of material quickly, but often find it harder to apply ideas when problems look slightly different.
Brilliant is also designed to work for curious adults, not just kids. Parents who learn alongside their children aren't just paying for a tool — they're genuinely engaged in the material too.
AI tutors: Koji vs. Khanmigo
Both Brilliant and Khan Academy now offer AI tutors — but they work very differently.
Koji is Brilliant's tutor, built directly into courses. Koji can see exactly what you're working on — including the interactive components on screen — and guides you through the thinking when you get stuck. The key principle: Koji never just gives you the answer. It asks the right questions and adjusts the interactive to help the idea click. Because Koji is connected to Brilliant's learning infrastructure, it stays on topic and is accurate in a way that general AI models often aren't.
Khanmigo is Khan Academy's AI assistant. It can help with homework questions, tutoring, and broader brainstorming conversations. It's more of a general-purpose AI guide — useful for a wide range of questions, but not deeply integrated with the learning environment the way Koji is.
The distinction matters in practice. When you're stuck on a problem, a tutor that can see what you've done, interact with the content, and guide your thinking step by step is a different experience from a chatbot that answers questions.
Which is better for my child?
Brilliant may be better if your child:
- learns best by doing rather than watching
- gets bored or disengaged by passive instruction
- wants to understand why ideas work, not just how to apply them
- is curious about STEM topics that go beyond standard school content
- would benefit from challenges that build confidence and persistence
- would benefit from a personal tutor on demand: Koji scaffolds their thinking when they get stuck, without just revealing the answer
Khan Academy may be better if your child:
- needs free academic support across many school subjects
- is looking for homework help or grade-level review
- prefers learning through video explanations
- needs coverage beyond STEM (history, arts, test prep)
Many families use both: Khan Academy for broad academic support and homework help, Brilliant for building real conceptual depth and a love of STEM.
The bigger picture: what parents are really hoping for
Parents weighing Brilliant against Khan Academy are often asking a subtler question: will my child actually understand the material, or just feel like they do? Khan Academy makes ideas feel accessible — students watch explanations, things seem clear, and progress feels steady. But clarity in the moment and real understanding are different things. Students who learn primarily by watching tend to hit walls when problems look slightly different. Students who learn by doing — working through challenges, getting stuck, asking Koji the right question, and figuring something out — build the kind of understanding that transfers. That's what Brilliant is designed for.
Pricing and access
Khan Academy is completely free. Brilliant offers a free tier with limited lessons, along with Premium plans for individuals and families. The Family Plan lets multiple household members — including parents — learn on the same subscription. For questions about pricing, contact support@brilliant.org.
Frequently asked questions
Is Brilliant better than Khan Academy for STEM?
For students who want to build genuine understanding through active problem solving, Brilliant is often a better fit. Khan Academy is stronger for students who need broad, free academic support across many subjects.
Is Khan Academy free?
Yes. Khan Academy is completely free, which makes it an appealing option for families who need wide subject coverage at no cost.
Does Brilliant have a free option?
Yes. Brilliant has a free tier, along with Premium plans for individuals and families.
Is Brilliant good for kids?
Yes. Most kids are ready for Brilliant around age 10, but curious kids as young as 7 or 8 can thrive if they have solid arithmetic basics. Readiness is about math comfort level, not age.
Can parents use Brilliant?
Yes. Brilliant is built for curious learners of all ages, and many adults find it genuinely engaging. The Family Plan lets parents learn alongside their children on the same subscription.
Does Brilliant organize courses by grade level?
Brilliant includes standards-aligned content and alignment guides, but does not lock learners into narrow grade-level tracks. Students can review foundational topics, work at grade level, or explore more advanced content based on readiness and curiosity.
Final verdict
Choose Brilliant if you want your child to build genuine conceptual understanding, develop lasting problem-solving skills, and actually enjoy learning STEM. Choose Khan Academy if your family needs broad, free academic support across many subjects. For families who can invest in deeper STEM learning, Brilliant offers something that passive instruction rarely can: the lasting confidence that comes from figuring things out yourself.
Ready to try Brilliant? Start for free or learn about Premium plans.