# OpenAI's Dota 2 AI Defeats Top Human Players in Historic Match

OpenAI announced that its AI system, OpenAI Five, has defeated a team of elite human players in the complex video game Dota 2, marking a significant milestone in artificial intelligence development.

The AI won a best-of-three series against a team featuring Blitz, Cap, Fogged, Merlini, and MoonMeander—players ranked in the 99.95th percentile, with four having professional Dota careers. The match took place before a live audience and drew 100,000 concurrent livestream viewers.

**Why This Matters**

Dota 2 is considered one of the most challenging games for AI due to its complexity. Players must make strategic decisions over 45-minute matches, coordinate with teammates, and adapt to opponents in real-time. The game involves imperf