I like hands-on learning more than I like textbooks, so in case that matches your requirements, maybe try training your own GPT to have a sense for how it works. I wrote a Rust version of the famous https://github.com/karpathy/nanoGPT (which is in Python) so that I could learn how it's built.
I wrote it in Rust because I wanted to improve my skills in that language, be forced to write code instead of just reading the existing implementation so that I would truly learn, and test the quality of the nascent Rust AI/ML ecosystem, but you could pick your own language
I wrote it in Rust because I wanted to improve my skills in that language, be forced to write code instead of just reading the existing implementation so that I would truly learn, and test the quality of the nascent Rust AI/ML ecosystem, but you could pick your own language