Heurist is an innovative decentralized AI-as-a-Service (AIaaS) cloud platform that aggregates computing resources from individual GPU holders and data centers to provide serverless AI services to developers. This article provides an in-depth analysis of Heurist's technical architecture, core innovations, financing background, and market potential, revealing how it enhances the efficiency and security of AI model hosting and inference through elastic scaling protocols, scalable Layer 2 infrastructure, and zero-trust computing. With the growing demand for AI technology, Heurist is expected to drive the development of decentralized AI ecosystems, bringing more value and opportunities to users and developers.