Livepeer AI subnet is an innovative project launched by Livepeer, aiming to build the first decentralized video processing network with AI computing capabilities. As a decentralized live video streaming network protocol, Livepeer has been committed to providing blockchain-based, cost-effective solutions to replace traditional centralized broadcasts since its launch in 2017. The Livepeer AI subnet provides low-cost, high-performance processing services and solves the structural problems of centralized AI computing by leveraging Livepeer's thousands of GPU open networks. This article details the concept of the Livepeer AI subnet, how it works, why it was established, and how to participate in it.