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UK AI Chip Startup Olix Raises $312M, Valuation Triples to $3.3B in Six Months

Is this a bold bet that reshapes the AI chip race or an overhyped pre-product startup punching above its weight?

AUG 4·Updated AUG 5

UK AI Chip Startup Olix Raises $312M, Valuation Triples to $3.3B in Six Months

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Above: An Interuniversity Microelectronics Centre (imec) 12-inch wafer displayed at the Semicon Japan exhibition in Tokyo on Dec. 17, 2025. Image credit: Kiyoshi Ota/Bloomberg/Getty Images

The Facts

London-based AI chip startup Olix has raised $312 million in a Series B round, tripling its valuation to $3.3 billion in roughly six months. The round was led by New York firm Fundomo, with Arm, Hudson River Trading and Netflix co-founder Reed Hastings among the backers.
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Tech Times
The U.K. government's Sovereign AI venture fund also participated in the round, making Olix one of its first equity investments. AI Minister Kanishka Narayan stated that "countries that build chips will build leverage," citing Olix as an example of the kind of company the fund aims to support.
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Olix was founded in 2024 by James Dacombe, who is 25 and also serves as CEO of CoMind, a brain monitoring startup he founded that has raised around $100 million separately. Olix's $220 million Series A in February 2026 was one of the largest ever raised by a U.K. technology company.
Tech Monitor
Financial Times
Olix's X-1 platform distributes AI model workloads across multiple specialized chips linked by an optical interconnect that moves data using light rather than copper. Its first chip, DX-1, targets the decode stage of AI inference and is designed without high-bandwidth memory or advanced packaging.
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The Stack
Olix appointed Prof. Nick McKeown, winner of the 2025 Marconi Prize, to its board. McKeown co-invented software-defined networking and previously co-founded Nicira, acquired by VMware, and Barefoot Networks, acquired by Intel.
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Tech.eu
Tech Times
Matt Briers, who served as CFO of fintech company Wise for nine years and guided its 2021 direct listing on the London Stock Exchange, has joined Olix as chief financial officer. Olix plans to deliver its DX-1 chip to its first customers in the second half of 2027.
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Financial Times

Sources Split

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CENTER

RIGHT

ESTAB
CRIT

CENTER

PRO
ESTAB

The Spin

Narrative A

Olix's raise proves the AI chip race has room for outsiders willing to rethink the hardware stack. Dodging the supply chain bottlenecks strangling rivals by ditching high-bandwidth memory is a genuine strategic edge. Arm, Reed Hastings and the U.K. government backing a 25-year-old founder two years in signals this is the kind of bet that reshapes an industry.

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GOV.UK

Narrative B

Olix hasn't shipped a single chip yet, and the AI infrastructure race it's entering is stacked with far better-funded American giants. The performance numbers Olix is promising for DX-1 have zero independent verification behind them. The U.K. is not taking the AI race seriously, and a modest fund pouring money into unproven start-ups will not move the needle on British technology.