Learn GenAI by Building—and Breaking—It

Field notes

The curriculum starts with a 20-lesson module on how language models work, moving from tokens and context windows through embeddings, attention, logits, and sampling. Lessons are framed as build-and-break exercises, with simulations authored to produce consistent teaching outcomes rather than requiring live API keys. The page also lays out a five-module path covering applications, RAG, tool use, agent loops, human approval, and production concerns, although only the first module is marked live.