UK Sovereign AI Fund reported to join Fractile round valuing London chip startup at $6.5 billion

The UK government's Sovereign AI Fund is investing in London AI chip startup Fractile, The Telegraph reports, joining a funding round that values the company at $6.5 billion (about £4.8 billion) and is set to raise around $700 million, with an announcement expected as early as next week. The fund would invest hundreds of millions of pounds, according to the report, making it the state-backed investor disclosed in the round so far. Note: this is a press report for now; neither the fund nor the company has formally announced a deal.

Filings point to the same round already under way

A separate line of evidence points to the same round: Tech Funding News, citing Companies House filings, reports that Fractile has allotted £577 million in Series C preferred shares since September, across nine allotment returns filed on October 15 and 28, covering allotments made between September 9 and October 23. At about $1.34 to the pound that is roughly $774 million. The shares span three new classes, with the resolutions passed on September 11 and lodged on October 12. The two figures are close but not measured on exactly the same basis, so they should not be treated as identical.

A sixfold valuation jump, before any chip ships

Fractile was founded in 2022 by Walter Goodwin, then a PhD student in robotics at the University of Oxford, and builds chips for AI inference — the computation needed when a trained model answers a prompt, rather than training itself. It raised $220 million in May at a valuation of about $1 billion; a $6.5 billion valuation would be more than six times that level in a few months. Bloomberg reported in August that Fractile had reached an initial agreement to supply about $250 million of chips to Anthropic, but the hardware is not expected to be ready for deployment until 2027, and the company has disclosed no revenue and shipped no production chip. The round is therefore a bet on a future inference market, not on current sales.

Why a state fund would back an inference challenger

Inference chips are one of the most crowded races in AI hardware: Cerebras has gone public, Etched raised $700 million at a $21 billion valuation, and Groq has also raised recently. If confirmed, the Sovereign AI Fund's investment would be a clear signal that the UK government is using capital to keep a domestic AI hardware contender in a market dominated by Nvidia. What to watch next: whether the announcement lands next week as reported, and whether Anthropic's initial order grows into a larger contract.