'It's not clear we can control it': what they said at the Bletchley Park AI summit

The global AI safety summit opened at Bletchley Park on Wednesday with a landmark declaration from countries including the UK, US, EU and China that the technology poses a potentially catastrophic risk to humanity. The so-called Bletchley declaration said: "There is potential for serious, even catastrophic, harm, either deliberate or unintentional, stemming from the most significant capabilities of these AI models." Here are some of the interventions from political and tech industry figures – as well as King Charles – on the day. The world's richest man and Tesla chief executive described AI as a threat to humanity. Musk, who co-founded the ChatGPT developer OpenAI, has launched a new venture called xAI and is attending both days of the summit, which is being held about 50 miles from London at the site which played host to top-secret codebreakers during the second world war.