Chinese start-up Moonshot AI’s Kimi K3 has narrowed the country’s artificial intelligence gap with the US to “a matter of weeks”, fuelling jitters in Silicon Valley over its lead in frontier AI as China doubles down on its open-source strategy. The Beijing-based unicorn released the Kimi K3, a massive 2.8 trillion-parameter large language model, late last week. According to the company, the model featured native vision capabilities and was built for long-horizon coding, knowledge work and...