There is a very good intro on how LLM work by Kharpaty. It's https://www.youtube.com/watch?v=7xTGNNLPyMI https://www.youtube.com/watch?v=7xTGNNLPyMI and it's 3.

There is a very good intro on how LLM work by Kharpaty. It's https://www.youtube.com/watch?v=7xTGNNLPyMI https://www.youtube.com/watch?v=7xTGNNLPyMI and it's 3.30 hours, so way below the 100 hours mark :)