Collaboration and opportunity were at the centre of the talks, as JD Vance urged his ‘European friends’ to view the technology with ‘optimism rather than trepidation’. The US and the UK refused to sign a declaration on ‘inclusive and sustainable’ artificial intelligence at the summit. Campaign groups criticised the UK’s decision and said it risked damaging its reputation in this area

• US and UK refuse to sign Paris summit declaration on ‘inclusive’ AI

• Europe live