Who is behind the UK's billion-pound AI boom?
AI-generated summary A new study by economists at the University of Warwick and Imperial College London examines the U.K.'s billion-pound market for paid AI tools using anonymized bank and card transactions. The research estimates that 5.1% of U.K. adults paid for AI assistants themselves in June 2026, with ChatGPT leading the market while Claude gained subscription spending share.