>>5754906Necrons use AI, though they refer to them as "Autonomous Spirits". Not that far off from the cult mechanicus labeling any advanced programs as Machine Spirits and they even treat them with some degree of sentience.
Autonomous spirits run Necron Ships to Palaces and such. When a Phaeron dies and a new one takes their place, the Autonomous Spirit recognizes their identity and follows their commands.
Critically they also have a ban on more sentient AI being installed in canoptek constructs, which explains how like the Mechanicus/Imperium they avoid AI rebellions