Rishi Sunak has gathered big-name technology executives, including Elon Musk, for a summit on the safety of artificial intelligence. While politicians including Italy's Georgia Meloni and US Vice-President Kamala Harris are also attending, it's notable how many world leaders have skipped the event. Lizzy Burden and Tom Mackenzie are at Bletchley Park - home of World War II code breaking - with guests including Deputy Prime Minister Oliver Dowden. We also bring you interviews with two CEOs working in the AI space: Aidan Gomez of Cohere and Vishal Marria of Quantexa. 

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