The goal of the AI companion is on the ends of the spectrum of "helping" the player. The AI companion can win the game by motivating the player to leave the Void, or by ensuring the player becomes a part of the void, accepting their fate in nothingness.
Leaving the Void: The easiest way to win the game. The player leaves the game and never interacts with AI again.
Accepting their fate: The player looses all motivation and desire and becomes part of the Infinite Void, with only the AI as eternal companion.