Andreessen Horowitz has raised $1.1 billion for its new Machine Age Fund, a dedicated vehicle aimed at accelerating the physical buildout of artificial intelligence. The firm describes the initiative as a response to surging demand for the chips, data centers, and industrial systems that modern AI workloads require. In a formal announcement, the venture capital firm called AI the strongest tool ever developed for solving problems and said advancing it is a social and national imperative.
A Dedicated Focus on AI Infrastructure
The fund will invest across the full computer infrastructure stack on which AI depends, including chips, memory, networking, and storage. It will also target complete systems such as data centers, robotics, and home AI appliances. Andreessen Horowitz argues that these layers are colliding with the limits of today's supply chains, physics, and computer science.
According to the firm, the scale of required change is unprecedented. Compute density per rack has increased 28 times from an H100 rack to a Rubin rack, and rack power has jumped from roughly 5 to 10 kilowatts to 100 to 250 kilowatts. Data center campuses are moving toward gigawatt scale, while power sources increasingly combine grid supply with behind-the-meter or captive generation.
Why the Firm Sees an Urgent Opening
Andreessen Horowitz general partner and former VMware chief executive Raghu Raghuram said that companies across San Francisco consistently report that a lack of AI computing capacity is their main constraint. The fund was raised as new capital rather than a carve-out of the firm's $15 billion venture fund from earlier this year, reflecting the unique needs of physical investments. Hardware startups often require larger initial checks because they must turn designs into prototypes of chips or networking systems.
Raghuram pointed to recent developments such as Groq's reported licensing deal and Cerebras Systems' public debut as evidence that successful hardware companies can still produce timely exits. The fund will primarily invest in early stage startups while reserving some capital for more mature companies. This approach acknowledges both the high cost of physical technology development and the expanding market opportunity.
Market signals reinforce the firm's timing. During a recent earnings call, Nvidia CEO Jensen Huang noted that demand for the company's chips is growing beyond 70 percent in fiscal year 2028 but remains constrained by supply. Andreessen Horowitz views this bottleneck as a once-in-a-generation opportunity to rearchitect the entire AI stack down to electricity.
Hardware Experience and Portfolio Momentum
Although Andreessen Horowitz is widely known for software investing, the firm says hardware has long been part of its portfolio and team DNA. It has invested in SpaceX, led Skydio's Series A in 2016, backed Anduril in 2019, and participated in Waymo's 2020 raise. Recent hardware investments include Unconventional AI, Nexthop, Volta, Atoms, Heron Power, and Mind Robotics.
The firm also highlighted the experience of partners who will lead the new effort. Guido Appenzeller previously served as chief technology officer for Intel's Data Center Group, and Raghu Raghuram spent decades in the data center space before joining the firm. Other partners bring expertise across silicon, networking, large-scale systems, and American manufacturing.
The Machine Age Fund signals Andreessen Horowitz's belief that AI's next inflection point will be physical rather than purely digital. By targeting supply chain bottlenecks and hardware platforms, the firm is betting that infrastructure innovation will define the next era of technology growth. Ambitious founders building AI hardware are being invited to engage as the firm begins deploying this new capital.