China and the United States are taking divergent paths to developing artificial intelligence (AI), putting their technology ecosystems increasingly at odds. This divergence was on show on April 24 when start-up DeepSeek launched its next-generation V4 AI models that were optimised for use with the Ascend chips and associated software tools of tech giant Huawei Technologies. China has for years been pursuing technological self-reliance, a policy reiterated by the Communist Party’s Politburo at...