Koji by Brilliant
Master complex subjects with your own AI-powered personal tutor.
Quick verdict
Koji by Brilliant is an AI-powered personal tutoring tool built into the Brilliant learning platform, designed to help learners of all ages and skill levels understand complex topics in math, science, and computer science through guided, conversational instruction. Rather than simply delivering pre-recorded lessons, Koji acts as an interactive tutor that responds to your specific questions, adapts explanations to your level, and helps you work through difficult concepts step by step. It is ideal for students seeking extra support outside the classroom, self-taught learners who want structured guidance, and professionals looking to sharpen technical skills at their own pace. What makes Koji particularly useful is its ability to combine the depth of Brilliant's existing course library with the flexibility of real-time AI conversation, so you never feel stuck or forced to move on before you truly understand a topic. Whether you are brushing up on calculus, diving into data science, or trying to grasp foundational physics, Koji meets you where you are and helps you build genuine, lasting understanding.
Key features
- Conversational AI tutoring that answers subject-specific questions in real time
- Adaptive explanations that adjust to your current knowledge level
- Deep integration with Brilliant course content across math, science, and CS
- Step-by-step problem-solving guidance to build genuine understanding
Pros & cons
- +Combines structured course content with flexible AI-driven conversation
- +Adapts to individual learner needs rather than delivering one-size-fits-all answers
- +Backed by Brilliant's reputation for rigorous, visually engaging STEM education
- −Full access to Koji and all courses requires a paid Brilliant subscription
- −Content focus is primarily STEM, limiting usefulness for humanities or language learners
Pricing
Limited free access to Brilliant courses and basic Koji interactions
$13.99/month (billed annually) for full Brilliant Premium access
Team and group plans available for organizations and classrooms
Who is it for
- →Students supplementing school learning with personalized tutoring support
- →Adults learning data science, programming, or math for career advancement
- →Curious lifelong learners exploring scientific concepts at their own pace
Frequently asked questions
Is Koji by Brilliant free?
Koji by Brilliant is available through the Brilliant platform, which offers a limited free tier. However, full access to Koji's tutoring capabilities and all course content typically requires a Brilliant Premium subscription.
What is Koji by Brilliant best used for?
Koji is best used for learning and understanding STEM subjects including mathematics, physics, computer science, and data science. It excels at helping learners work through difficult concepts with personalized, conversational explanations and step-by-step problem guidance.
What are the best alternatives to Koji by Brilliant?
Top alternatives include Khan Academy's Khanmigo AI tutor, Khanmigo, Socratic by Google, Photomath for math-focused help, Chegg's AI tutoring tools, and general-purpose AI assistants like ChatGPT or Claude that can answer academic questions.
Is Koji by Brilliant safe to use?
Yes, Koji by Brilliant is considered safe to use. Brilliant is an established and reputable edtech company with a strong track record. The platform follows standard data privacy practices, and the AI tutor is designed to provide educational support in a constructive, appropriate manner.
How much does Koji by Brilliant cost?
Brilliant Premium, which includes full access to Koji, starts at approximately $13.99 per month when billed annually. A monthly billing option is also available at a higher rate. Brilliant occasionally offers free trials for new users to explore the full platform before committing.
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