I am/was a huge fan and have done their courses but they've made so many weird decisions (like going all in on swift4tf for teaching newish people so early on or the dramas they involve themselves in) and have stopped doing as much that I'm not sure if they are as great of a current example anymore (but maybe they'll resurface stronger).
Huggingface are a better example closer to what Cohere do.
Can't recommend the course enough and it's incredible that such a quality resource is available for essentially zero cost
https://github.com/fastai/course-nlp
https://www.youtube.com/playlist?list=PLtmWHNX-gukKocXQOkQju...