AlphaStar

OpenAI Five defeats Dota 2 world champions OG in live match

OpenAI Five became the first AI system to defeat world champion esports players in a live public match, winning two consecutive games against Dota 2 world champions OG at Finals in April 2019. This milestone followed earlier private victories by both OpenAI Five and DeepMind's AlphaStar against professional players, but marked the first time an AI beat top esports professionals on livestream. The result represents a significant benchmark in multi-agent reinforcement learning applied to complex real-time strategy games.