Fractile raises $720 million at $7 billion valuation
The frontier AI chip company closed a Series C round to fund rack-scale inference systems. The capital will support technology development and long-term supply chain agreements.
Fractile, a frontier AI chip company founded by Walter Goodwin, closed a $720 million Series C round co-led by Thrive, Founders Fund, Lightspeed, and Redpoint. The funding values the company at $7 billion. Fractile develops rack-scale systems designed to advance AI capabilities, specifically targeting large language model inference. Its architecture utilizes 3D-stacked memory that combines the bandwidth of SRAM with the capacity of DRAM. Goodwin stated that the capital will be used to explore multiple generations of technology, expand into systems and networking layers, and secure long-term supply chain agreements.
The company maintains in-house backend design capabilities, avoiding reliance on intermediaries such as Broadcom. This vertical integration allows for custom manufacturing processes and direct relationships with foundries like TSMC. Fractile recently hired Dan Rabinovich from Meta to lead its systems build-out. Goodwin emphasized that while tape-out is a key milestone, the company focuses on 'task zero,' defined as the day a reference workload runs on an entire rack of Fractile chips. The firm believes it can achieve a 10x advantage in cost and speed for specific workloads compared to conventional GPUs. Goodwin argued that in-house design is essential for chip startups to avoid commoditization and secure supply chain advantages in a market constrained by land and power.