Can UK sovereign AI compete for talent when OpenAI and Anthropic both recruit from King's Cross?
Timeline for King's Cross
Mentioned in: Onwurah: DSIT has no coherent strategy
European Tech SovereigntyMentioned in: Kendall names seven infrastructure bets for £500m Sovereign AI Unit
European Tech SovereigntyServed as site of OpenAI's 88,500 sq ft UK research office lease
European Tech Sovereignty: OpenAI takes 88,500 sq ft in London, pauses Stargate UKMentioned in: OpenAI takes first permanent London base
European Tech SovereigntyBackground
King's Cross is a central London district that has become a focal point for major US technology companies establishing European research and commercial operations. In April 2026, OpenAI signed a lease for 88,500 square feet at a King's Cross address, planning for more than 500 employees and framing London as its largest research base outside San Francisco. The lease came in the same week OpenAI paused its Stargate UK data-centre buildout, citing UK industrial electricity prices roughly four times US levels and grid-connection delays of three to eight years.
Anthropic also maintains its London headquarters in the King's Cross area. Anthropic's London engineering salaries range from approximately £225,000 to £340,000, setting a pay benchmark that DSIT's Sovereign AI Unit investees cannot match. The district's concentration of US AI Lab offices creates a talent-market dynamic directly relevant to UK Sovereign AI strategy: the government's £500m Sovereign AI Unit is building the funding layer for domestic AI while the dominant US labs recruit from the same talent pool at substantially higher compensation.