System design, AI and quantum computing, taught visually, with hands-on toys, practice, and a certificate that shows your level.
Free during early access. No card needed.
Understand how language models work by building one, step by step.
Start freePrompt, retrieve, wire up tools and agents, and measure whether any of it works.
Rules, search, predictive models, recommenders, vision and RL, and when not to reach for an LLM.
Scale a service under rising traffic and see every trade-off in motion.
Build circuits, entangle qubits, and watch the state vector change.
Each certificate has a public link anyone can use to check it. coming
Everything is free while we’re in early access. Later: one monthly price per course, by card or crypto.
See pricing →Everything, during early access. After launch, the first chapters of every course stay free. Sign in to save your progress.
Levels are earned by mastering a course’s skills. Each certificate gets a public verification link.
Yes. Crypto buys 1, 3 or 12 months up front; we’ll email you before it runs out.
Card subscriptions can be cancelled any time and keep working until the end of the paid month.