More frequently than not, it wins at Diplomacy, a complex, ruthless strategy game where players forge alliances, craft battle plans and negotiate to conquer a stylized version of Europe.

It's the latest evolution in artificial intelligence, which has experienced rapid advancements in recent years that have led to dystopian inventions, from chatbots becoming humanlike, to AI-created art becoming hyper-realistic, to killer drones.

Cicero, released last week, was able to trick humans into thinking it was real, according to Meta, and can invite players to join alliances, craft invasion plans and negotiate peace deals when needed. The model's mastery of language surprised some scientists and its creators, who thought this level of sophistication was years away.