Quiz yourself on the moments that actually matter
We study the best AI teaching on YouTube — university lectures and the sharpest independent creators — and write questions from what is actually taught. Every question comes from a specific moment in a real lecture, and we show you which one, so you can check our work.
Built for AI interviews and the skills the job actually asks for.
AI & LLM Essentials
360 questions · three tracks · one-time $14.99
Compiled from MIT, Stanford, Karpathy, 3Blue1Brown, DeepLearning.AI, Anthropic, Umar Jamil, ByteByteGo
FoundationsStart here if AI is new to you
How the models actually work — the mechanics behind every other answer.
LLM Fundamentals · Transformers & Attention
2 topics · 120 questions · 20 free to try
Building with AIThe AI-engineer core
Retrieval, agents and prompting — what an AI engineer is hired to do.
Retrieval-Augmented Generation · AI Agents & Tool Use · Prompt Engineering
3 topics · 180 questions · 30 free to try
Shipping & ScalingWhat senior loops dig into
Evals, fine-tuning, inference cost and system design — getting it into production.
LLM Evals & Observability
1 topics · 60 questions · 10 free to try
Coming next
Each category is a separate one-time purchase. Votes decide the order.
AI Governance & Security
Alignment, red-teaming, prompt injection and the rules now shaping how AI ships.
Compiled from Stanford HAI, Anthropic, freeCodeCamp
Classical ML & Statistics
Bias-variance, regularisation, trees and the statistics still asked in every ML and data-science loop.
Compiled from StatQuest, MIT, Harvard Stat110
Would you want these too?
We're focused on AI for now. These aren't planned — but if enough people want one, we'll reconsider.
Algorithms & Data Structures
Complexity, sorting, graphs, dynamic programming.
Python Programming
Syntax through to the idioms interviewers look for.
Databases & SQL
Query planning, indexing, transactions, and the SQL that gets asked.