Chinese unicorn Moonshot AI’s new Kimi K3 model rivals top US systems in spotting cybersecurity flaws, according to early research, stoking fears in Washington that strict safety guard rails are putting American artificial intelligence firms at a competitive disadvantage. The 2.8 trillion-parameter open-weight model, released last week, offers cybersecurity performance “extremely close” to OpenAI’s flagship GPT-5.6 Sol at a fraction of the cost, Swiss firm Aikido Security said in a report on...