I've started a game with the entente, and AI wasn't any better, as soon as russia declared war, german troops messed around from one front to another leaving gaps and unexpected retreats in western front... In another game, playing central powers again, I discovered the ultimate mechanic to kill one...

I've been playing this game since last weekend with the last beta patch, central powers and hardest difficulty. And I really think the AI is too easy to beat, I'm at 1917, all seas are submarine controlled, english battleships sunk, convoys intercepted, france mainland occupied, Suez canal captured ...