USD.AI has introduced a stablecoin protocol designed to fund AI GPU leases by leveraging DeFi liquidity. The protocol, which currently circulates $345 million, tokenizes NVIDIA GPUs as NFTs to serve as collateral for loans. These loans are repaid through revenue generated from GPU compute operations. Investors can earn a yield of 13-17% by staking sUSDai, as the platform seeks to establish a new model for decentralized infrastructure finance, termed 'InfraFi'.