Confirmation of snub comes after JD Vance criticises Europe’s ‘excessive regulation’ of technology

The US and the UK have refused to sign the Paris AI summit’s declaration on “inclusive and sustainable” artificial intelligence, in a blow to hopes for a concerted approach to developing and regulating the technology.

The two countries did not immediately explain their reasons for not adding their names to a document backed by 60 signatories on Tuesday, including China, India, Japan, Australia and Canada.