Summit highs Existential threats and a new forum for diplomacy

Rishi Sunak hailed last week's artificial intelligence summit at Bletchley Park, the UK base for second world war codebreakers, as a diplomatic win after it produced an international declaration to address risks with the technology. Here are five things that we have learned from the summit.

- Dan Milmo and Kiran Stacey

The US is a hard power 

The White House made clear its power to set the AI agenda. President Biden issued an executive order requiring tech firms to submit test results for powerful AI systems to the government before they are released to the public, and US vice-president Kamala Harris announced the establishment of an AI safety institute. US dominance reflected the fact the majority of cutting-edge Al companies, such as the ChatGPT developer OpenAI, are based there.

Elon Musk has star power