AIs seem ridiculously powerful. In the time it takes to wink, Poe is able to integrate the entire field of psychosurgery (a presumably complex topic) into his knowledge base. If AIs are this powerful, and so plentiful as to be used as cheap hotels and brothels, why do we see so little of them? Why are they not controlling everything?
In the books you get stuff that is clearly AI driven, but AIs don't really exist as characters. The only one I can remember offhand that even gets a name is the Hendrix, and that's something of a special case since it owns itself.
The author (Richard Morgan) is really gritty, and really into exploring the darker ends of human nature. I honestly just don't think AI is very interesting to him, so while it exists, it's almost always aloof and impersonal (or dysfunctionally insane). I'd expect the show to change that up due to the public interest in AI.