Venture capital giant Andreessen Horowitz has launched the Machine Age Fund, its first dedicated hardware infrastructure vehicle, with $1.1 billion raised. The fund marks a significant strategic shift for the firm, which built its reputation on software investments, as it bets that the physical infrastructure powering AI represents the next major investment frontier.

The fund will target the full stack of AI hardware: computer chips and memory, data centers and their supporting infrastructure including cooling and power systems, interconnects between computing nodes, and edge devices designed for AI inference and interaction with the physical world. In a blog post, a16z called AI 'the strongest tool ever developed for solving problems and bestowing abundance,' framing its advancement as both a 'social and national imperative.'

The firm outlined the specific gaps the fund aims to address: faster and more efficient computing systems, cheaper and higher-bandwidth memory across the memory hierarchy, faster and more scalable interconnects, power-efficient edge devices, and the cooling, materials, electrical, and real estate infrastructure to support them all.

The launch comes amid surging demand for AI compute that has strained global supply chains for chips, memory, and data-center capacity. Major cloud providers and AI companies have committed hundreds of billions to infrastructure buildout, yet bottlenecks persist across the hardware stack.

The fund represents a doubling down on a16z's expansion into hardware investments, particularly the AI infrastructure bets it has made in defense and enterprise technology sectors.