Errr...
No.
If I remember correctly, there is no sentient machines in Aristoi.
It is a society of classes. The posthuman rulers (Aristoi) have full control of their domains (planets) and their destiny. This ruling classe of Elite share the same feature : a divided mind (yes, they are schizo). Each personality is part of a whole and impersonate a part of the Aristo persona (agressivity and war, love and arts, calculation and reason ...). The aristoi communicate through a kind of neural network (with hardwired interface), but I do not remember AI or drones like those Banks entertain us with. The big big meta power of Aristoi is their control of nanos (notably Mataglap who destroyed Earth) with which they shape their domain.
In another Williams'novel , however, the main character is intimatly linked with an AI (Implied Spaces, 2009 ).
Where banks imagined an hedonistic anarchist society, Williams is painting a very rigid one, with much less commonly available tech.