A16z announces $1.1B Machine Age Fund for AI infrastructure

Andreessen Horowitz just put $1.1 billion behind the idea that the future of AI won’t be written in code alone. It’ll be forged in silicon, copper, and concrete. The venture firm’s new Machine Age Fund, which closed on August 28, is a16z’s first vehicle exclusively targeting AI hardware and physical infrastructure. We’re talking chips, memory, networking, storage, interconnects, data centers, and robotics. The full stack of atoms that make the bits possible. Why hardware, why now Consider the compute density trajectory. From NVIDIA’s H100 to its Rubin architecture, compute density in AI racks has jumped by 28 times. That’s not an incremental improvement. That’s a fundamentally different engineering problem at every layer of the stack. Power requirements tell a similar story. Standard data center racks historically drew 5 to 10 kilowatts. Current AI-optimized racks already pull 100 to 250 kW. Within three years, projections suggest individual racks could hit 1 megawatt. A16z’s pivot from pure software The Machine Age Fund sits alongside, not within, a16z’s existing fund family. The firm has raised over $15 billion across its various vehicles, including a $1.7 billion Infrastructure ...