Andreessen Horowitz launches $1.1B AI hardware fund, then expands growth fund to $8.5B

Andreessen Horowitz just raised another $1.1 billion, and this time it’s not going toward software. The firm closed its new Machine Age Fund on August 28, dedicated entirely to AI hardware and infrastructure, a category that includes everything from chips and memory to data centers and robotics. Days later, on August 31, a16z disclosed it had expanded its fifth Growth fund to $8.5 billion total. Combined, the moves represent a firm-wide pivot toward the unglamorous but increasingly critical physical layer of the AI stack. The Machine Age thesis The Machine Age Fund is built around a straightforward observation: AI models keep getting more powerful, but the hardware running them can barely keep up. Some server racks now exceed 1 megawatt of power density, a figure that would have seemed absurd a few years ago and now reads as a genuine engineering constraint. A16z is positioning the fund to invest in the companies solving those bottlenecks. Target areas include semiconductors, networking equipment, storage solutions, data center infrastructure, and robotics. The fund is being managed by a roster of heavyweight partners: Ben Horowitz, Martin Casado, Raghu Raghuram, David Ulevitch, an...