io.net is a decentralized platform that offers scalable and cost-effective distributed computing resources, primarily targeting machine learning and GPU-intensive workloads. It operates a decentralized physical infrastructure network (DePIN) consisting of over 1 million GPUs across 138 countries, providing users with access to powerful hardware like NVIDIA's H100 GPUs. The platform leverages Ray.io, an open-source framework that accelerates backend development, and integrates with the Solana blockchain for instant payments and withdrawals in cryptocurrency. io.net's key technical components include a global network of GPU providers, a transparent supply chain and partner reputation tracking system, and on-chain record-keeping of every model inference run on the network. By utilizing decentralized computing resources and blockchain technology, io.net aims to offer highly scalable and cost-effective GPU computing power to startups and enterprises in the machine learning space, with costs up to 90% lower than centralized cloud providers.