Features
Interactive visual problem-solving lessons
AI tutor (Koji) adapts to individual knowledge
Real-time feedback and guided hints
Adaptive practice sets targeting weak areas
Spaced repetition and retrieval practice
Progress tracking with streak and level system
Curated learning paths for math, coding, science
Subjects: arithmetic, algebra, calculus, probability, statistics, Python, neural networks, data analysis
Mobile app (iOS and Android) for learning on the go
Daily goals and motivational features
WASC accredited supplementary education program
Built by learning experts from MIT, Harvard, Stanford
Over 10 million learners worldwide
100,000+ five-star app store reviews
Curriculum covering grade 5 to college-level topics
Official LLM leaderboard and ranking
Battle Mode for side-by-side model comparison
Agent Mode for real-world agent evaluation
Multimodal Max for multimodal model testing
Code Arena with web development challenge categories
BullshitBench for nonsense detection evaluation
File upload for third-party AI processing
Public conversation sharing for community research
Leaderboard dataset publicly available
Monthly arena updates across product and research
Search functionality for models and conversations
Community voting on model responses
