Olix

In the summer of 2026, a high-school dropout from the Yorkshire spa town of Harrogate became the youngest self-made billionaire in all of Europe, and he did it by challenging the most valuable company on Earth. James Dacombe was 25, and his two-year-old London startup, Olix, had just tripled in value in six months to reach a valuation of $3.3 billion. His story is unusual from the start. According to his own LinkedIn profile, his time at sixth-form college lasted exactly two days before he dropped out, taught himself to code, and founded a brain-monitoring company called CoMind as a teenager in 2017. He later won a Thiel Fellowship, the programme that pays talented young people to skip university and build companies instead, and by 2026 he was running two firms at once. His stake of around 30 percent in Olix, alongside a slice of CoMind, pushed his personal fortune past a billion dollars, making him one of only eleven self-made billionaires in the world under the age of thirty.

The ambition behind Olix is what makes the company genuinely interesting, because it is attempting something almost no startup has survived trying. The AI boom runs on chips, and that market is dominated so completely by the American giant Nvidia that challengers are usually dismissed as doomed before they begin, given how much capital and expertise the field demands. Rather than trying to build a better version of Nvidia's existing designs, Olix is taking a radically different path, developing what it calls an Optical Tensor Processing Unit, a new kind of chip that uses photonics, meaning light, instead of relying purely on traditional electronics. By combining a memory architecture called SRAM with photonics, and deliberately avoiding the supply-constrained components that bottleneck its rivals, the company claims its processors can deliver far more computing power per unit of energy and at a lower total cost, aimed specifically at the "inference" workloads that power AI chatbots and reasoning tools. One investor and former Facebook infrastructure executive described the difficulty of what Olix is attempting as brutally hard, while noting that Dacombe's team was executing faster than companies with ten times their resources.

The money pouring in reflects how seriously the industry is taking the bet, even at this early stage. Olix, which was originally registered as Flux Computing before the rename, raised $220 million in February 2026 to cross the billion-dollar mark, then pulled in a further $312 million by August in a round led by the New York firm Fundomo. The list of backers is a striking vote of confidence, including the chip designer Arm, the quant trading powerhouse Hudson River Trading, Netflix co-founder Reed Hastings, and even the UK government's Sovereign AI fund. The company has since hired the former chief financial officer of the fintech Wise and plans to "tape out" its first chips, the final stage of design before manufacturing, with products expected in customers' hands as soon as 2027. Whether Olix can actually loosen Nvidia's grip remains a genuinely open question, since no challenger yet has, and a chip that dazzles on paper must still work at scale in the real world. What the story already illustrates, though, is a shift worth watching, as a new generation of very young founders proves willing to take on the most entrenched and capital-hungry corners of the technology industry, armed with little more than a novel idea and an outsider's refusal to accept that the giants cannot be beaten.

Key takeaways

  • Olix, a London AI chip startup founded by 25-year-old James Dacombe, reached a $3.3 billion valuation in 2026 after tripling in value in six months.

  • Olix is developing an Optical Tensor Processing Unit that combines SRAM with photonics, aimed at AI inference workloads.

  • The company raised $220 million in February 2026 and a further $312 million by August in a round led by Fundomo, with backers including Arm and the UK government’s Sovereign AI fund.

  • Olix plans to tape out its first chips, with products expected in customers’ hands as soon as 2027.

Sources

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