Haven't fully watched this but from a brief skimming, here are some differences that the book has:

- it implements a real word-level LLM instead of a character-level LLM

- after pretraining also shows how to load pretrained weights

- instruction-finetune that LLM after pretraining

- code the alignment process for the instruction-finetuned LLM

- also show how to finetune the LLM for classification tasks

- the book it overall has a lots of figures. For Chapter 3, there are 26 figures alone :)

The video looks awesome though. I think it's probably a great complementary resource to get a good solid intro because it's just 2 hours. I think reading the book will probably be more like 10 times that time investment.