At what difficulty does the AI cheat?

[Psitticine]

It doesn't really "cheat" in terms of what most AIs do. It only has one advantage over players, which is that it always knows the ownership status of any province. That is to balance the fact human players can very easily intuit the same information from the dominion candles and so forth.

The difficulty levels control how many points the AI has to spend on its nation. On the Easy level, the AI has less points than the player. On Normal, everybody has the same, and the higher difficulty levels mean more design points for the AI nations.

Other than that, the AI has to play by the same rules as the player.