UK AI Subscription Spending Passes £1 Billion as Claude Gains Ground

British consumers are spending more than £1 billion a year on artificial intelligence subscriptions at the current run rate, according to new research based on payment data. The finding gives a rare view of what people actually pay for AI, rather than how many say they have tried a chatbot.

The study, by economists Nikhil Datta, Peter John Lambert and Patrick Schneider, examines anonymised UK bank and card transactions. As Bloomberg reported on 5 November, around 5.1% of UK adults were paying for AI tools by mid-2026. The researchers’ work also suggests that Anthropic’s Claude is taking a larger share of direct subscription spending even while OpenAI’s ChatGPT remains ahead.

An annualised spending figure is not the same as revenue already collected over a calendar year. It estimates what a recent monthly pace would amount to if maintained for twelve months. Equally, the share of adults paying for AI should not be confused with the much larger group that uses free tools or receives access through work or education.

That distinction matters when assessing the commercial strength of AI services. Popularity does not automatically translate into paying customers, and consumer subscriptions are only one part of the market. Business contracts, API use and purchases made through app stores can sit outside the direct-payment measure used in this research. The authors describe the wider project as Who Pays for AI? Evidence from 40 Billion UK Household Card Transactions.

The reported rise in Claude’s share points to a more competitive paid market than app download rankings alone might imply. Professional users willing to pay for higher-tier subscriptions can have an outsized effect on spending even if their numbers remain smaller than a rival’s broad free-user base. For AI companies investing heavily in computing capacity, retaining those subscribers is a direct test of whether expensive models can support durable revenue.

The UK data should not be read as a global market-share ranking. It covers a particular country, period and payment channel. It does, however, show that consumer AI is becoming a meaningful recurring expense. The next question is whether growth broadens beyond early adopters and higher-income users or remains concentrated among people whose jobs make a premium subscription easier to justify.