Anthropic's latest big-name hire: Monzo cofounder Tom Blomfield

Anthropic has hired Tom Blomfield, cofounder of British fintech Monzo, as a member of technical staff on its compute team. Blomfield is taking a leave of absence from Y Combinator, where he has been a general partner since 2023, to join the AI startup. The hire is part of Anthropic's ongoing talent acquisition spree, which has also included Andrej Karpathy and researchers from Google DeepMind.

The AI talent wars https://www.businessinsider.com/ai-talent-wars-google-deepmind-openai-anthropic-freedom-money-2026-6 aren't letting up — and neither is Anthropic's big-name hiring spree. The AI startup has hired Tom Blomfield https://www.businessinsider.com/monzo-tom-blomfield-vibe-coding-tips-ai-tools-2025-4 , the cofounder of British fintech company Monzo, and one of the biggest names in UK tech. Blomfield said on Monday that he is taking a leave of absence from Y Combinator, where he has served as general partner since 2023, to join Anthropic's compute team. "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," Blomfield said in a Monday X post https://x.com/t blom/status/2076580921398931788?s=20 . Blomfield joins Anthropic as a member of technical staff — the catch-all job title Anthropic uses for senior employees — according to his LinkedIn and X profiles. Blomfield cofounded Monzo, a digital bank, in 2015 and was CEO until 2020. He left Monzo entirely in early 2021 after a short stint as president. Blomfield told TechCrunch https://techcrunch.com/2021/01/20/enjoying-life-again/ at the time that he stopped enjoying the role after Monzo was no longer a "scrappy startup." He then turned to investing, joining YC in 2021, initially as a visiting partner. Blomfield is the latest notable name in tech to join Anthropic as the AI talent wars https://www.businessinsider.com/google-ai-talent-wars-anthropic-jumper-shazeer-karpathy-openai-2026-6 enters its celebrity era. Earlier this year, Andrej Karpathy, an OpenAI cofounder, joined Anthropic https://www.businessinsider.com/anthropic-hires-andrej-karpathy-2026-5 to lead its pre-training efforts. More recently, Anthropic poached several researchers from Google DeepMind, including John Jumper, whose work on AlphaFold https://www.businessinsider.com/alphafold-john-jumper-leaves-google-deepmind-anthropic-demis-hassabis-nobel-2026-6 won him and CEO Demis Hassabis a Nobel prize.