How AI Models Really Work
Theme: Understanding AILevel: Intermediate
Look inside the model behind your chat assistant — how text becomes tokens, how meaning becomes numbers, how training turns a text predictor into an assistant, what reasoning models add, and how to choose a model. No code or math needed.
Before this course
This course builds on:
Lessons
From text to tokens
Embeddings: meaning as numbers
Pre-training: learning from a mountain of text
Post-training: from text predictor to assistant
Reasoning models: thinking before answering
Choosing a model