Baseten, the company powering inference for the world’s fastest-growing AI products, announced a $150 million Series D fundraise at a $2.15 billion valuation bringing total capital raised to over $285 million. This fundraise arrives as AI adoption accelerates across sectors, with applications scaling to millions of users in a matter of months. At the center of this surge is inference, the process of running the AI models that power these products and applications. Inherently tied to all AI application revenue, the over $100 billion inference market represents one of the largest and fastest-growing in history. Baseten’s platform is purpose-built for inference, delivering the performance, cost efficiency, and scalability that modern AI applications demand. By uniting applied AI research, flexible infrastructure, and seamless developer tooling, Baseten enables companies operating at the frontier of AI to bring cutting-edge models into production. As firms become increasingly more demanding around the performance, reliability, and economics of their AI products, Baseten’s Inference Stack has quickly become a cornerstone for hypergrowth AI companies. With the Series D funding, Baseten will scale its team and product to meet accelerating customer demand. The company will double down on investing in model performance research, infrastructure, and developer tooling while also expanding its customer teams. These efforts will help the fastest-growing AI companies deliver reliable, high-performance products at scale. “If cloud was the foundation that enabled the latest generation of great technology companies, inference is the foundation for the next,” said Tuhin Srivastava, Co-founder and CEO of Baseten. “Baseten makes that possible. In the same way Stripe became an index of the internet economy, Baseten will become an index of the AI economy.”