OpenAI Five is now the first AI to beat the world champions in an esports game. Here's what happened, and how we made our comeback since losing to pros in Aug 2018: https://openai.com/blog/how-to-train-your-openai-five | OpenAI

Our team of five neural networks, OpenAI Five, has started to defeat amateur human teams at Dota 2. Here we describe our progress to date, how our system works, and how you can follow along as we gear up to play a team of top professionals at the Dota world championships, The International, in August: https://blog.openai.com/openai-five | OpenAI

We’ve developed a hierarchical reinforcement learning algorithm that learns high-level actions useful for solving a range of tasks, allowing fast solving of tasks requiring thousands of timesteps. Our algorithm, when applied to a set of navigation problems, discovers a set of high-level actions for walking and crawling in different directions, which enables the agent to master new navigation tasks quickly. Details: https://blog.openai.com/learning-a-hierarchy/ Code: https://github.com/openai/mls