Five takeaways from UK's AI safety summit at Bletchley Park

Rishi Sunak has hailed this week's artificial intelligence summit as a diplomatic breakthrough after it produced an international declaration to address risks with the technology. Here are five things we have learned from the summit. The prime minister spent diplomatic capital convening global leaders, tech executives, academics and civil society figures at Bletchley Park in Milton Keynes, the base for second world war codebreakers. Those attending included the US vice-president, Kamala Harris, the European Commission president, Ursula von der Leyen, award-winning computer scientists, executives at all the leading AI companies – and Elon Musk. Even if Emmanuel Macron and Joe Biden were among the no-shows, the gathering had political and commercial heft.