Fractile raises $720 million to build AI chips

Fractile's raise lands in a crowded field of startups building chips specifically for AI, a group that also includes Axelera, Etched and OLIX. What separates the company's pitch is not only silicon: it pairs its hardware with a machine learning compiler meant to maximize how fast LLMs execute on its chips, which is why it frames itself as a frontier AI company rather than a component supplier.

The technical bet rests on memory. After a pivot, Fractile's approach stacks DRAM on top of each chip, aiming to sidestep the usual tradeoff between memory and capacity. That tradeoff has grown more painful with agentic AI, where companies want long chains of tasks run on large models without sacrificing speed — and where compute is struggling to keep up.

The valuation reflects that ambition. Thrive Capital, Founders Fund, Lightspeed Venture Partners and Redpoint led the round, and the British government framed the Sovereign AI Fund's participation as ensuring the U.K. has a greater stake in the hardware underpinning its future economy. CEO Walter Goodwin's own note that there is 'still a lot of work ahead' points to the next milestone: shipping first chips and systems next year.