AI Engineering
An 8-week, self-paced course with 25 auto-graded labs and a short video each week, from how a model works to launching an assistant in production.
2 guides · about 34 minutes to read them all
Start at the top and read on. Each guide stands on its own, and they build in this order.
How AI works
A plain-language walkthrough of how LLMs work, with three worked examples you can check by hand: tokens and cost, attention, and temperature and top-p sampling.
Beginner18 min readUpdated 6 November 2026
Retrieval and RAG
How retrieval-augmented generation works end to end: chunking, BM25 and embeddings, hybrid fusion, reranking, citations, abstention and how to evaluate it.
Intermediate16 min readUpdated 6 November 2026