It won't be long before anti-cheat systems become largely ineffective for competitive games, as AI-based cheats have the potential to be virtually impossible to detect, and capable of running from an external device. Even if a system or console were completely locked down, as long as the AI can get a video feed of the screen, even from a camera aimed at it, and has some way of inputting user inputs, there will be no way of definitively determining whether a game is being controlled by an AI or a human player, short of directly observing the person playing the game. So long as the AI were trained not to behave in completely inhuman ways, it would be hard to distinguish between it and a good player, and any attempt to do so would undoubtedly result in lots of false-positives. About the only potential option would be invasive methods like having cameras recording video of every player to make sure their physical inputs align with what's happening in-game, or having players perform live in-person.