Monzo Founder Tom Blomfield Joins Anthropic’s Compute Team
Tom Blomfield, one of the biggest names in UK tech, is leaving Y Combinator to join Anthropic’s compute team. The Monzo and GoCardless founder is an unusual hire for an infrastructure role, and a marker of how far the AI talent war now reaches.
July 13, 2026 – 5:38 pm
Image by: Noam Galai/Getty Images for TechCrunch
Tom Blomfield built two of Britain’s best-known fintech companies. Now he’s joining Anthropic, and his job is to help crack the AI industry’s hardest problem: compute.
Tom Blomfield, co-founder of both Monzo and GoCardless, announced his move on X. He will be working on the compute team alongside Tom Brown, an Anthropic co-founder and its chief compute officer. Blomfield joins as a member of technical staff, a senior hire title used by Anthropic.
Why Compute?
On the surface, it’s an odd fit. Blomfield’s career is in consumer products and fintech, not data centers. But at Anthropic, compute is no longer just an engineering task; it has become one of the industry’s biggest commercial and operational challenges. Founder-level judgement can matter as much as technical depth.
Blomfield framed the job as mission-critical:
"Powerful AI has the potential to improve the life of every human on earth, and, as we enter the early stages of recursive self-improvement, availability of compute becomes one of the most important issues to solve."
The scale of Anthropic’s build-out shows why. The company has committed to deploy up to a million Google TPUs. More than a gigawatt of that capacity is due online this year. A separate deal with Google and Broadcom adds roughly 3.5 gigawatts of next-generation chips from 2027. In May, Anthropic also signed a cloud agreement with Elon Musk’s xAI for more than 220,000 Nvidia GPUs, according to Tech Funding News.
A $9bn Track Record
Blomfield is one of the rare British founders with two hits to his name. He co-founded GoCardless in 2011, then Monzo in 2015, and ran the bank as CEO until 2020. Between them, the two companies reached a combined peak valuation of more than $9bn.
Both are now nearing milestones: Monzo has passed 10 million customers and is preparing a London listing that could value it between £6bn and £7bn. GoCardless has agreed to be bought by the Dutch payments group Mollie in a deal worth about €1.05bn, still awaiting regulatory approval.
He left Monzo in early 2021 and moved into investing, joining Y Combinator as a full partner in 2023, where he mentored founders across four batches.