Rishi Sunak’s global summit on the safety of artificial intelligence this autumn will be hosted at Bletchley Park, the home of top-secret codebreakers during the second world war. The first major gathering on the technology will bring together governments, leading AI firms and experts to discuss how its risks can be mitigated through internationally coordinated action. Sunak announced the summit on a trip to Washington in June amid fears that the technology’s rapid advancement could spin out of control and concerns that existing safeguards would soon be outdated. Safety concerns are mounting after breakthroughs in generative AI, which can produce...