


Powerful new techniques mean that AI can do things regarded, less than a decade ago, as nearly impossible. Online games offer an opportunity to show off the strategic decision-making, coordination, and long-term planning skills of their creations. It’s a milestone that the top AI labs in the world have been frantically pushing toward in the last few years. With 45,000 years of practice at Dota 2 under its belt, the system looked unstoppable - deftly navigating strategic decisions and racing to press its advantages with uncannily good judgment.

In a series of live competitions between the reigning Dota 2 world champion team OG and the five-bot team OpenAI Five, the AI won two matches back-to-back, settling the best-of-three tournament. Pro gamers, look out - for the first time ever, a world champion e-sports team has lost to an AI team.
