You may remember the "DeepSeek moment" – when the world realized Chinese AI could compete at the absolute top level. Well, get ready for the sequel: the "Kimi moment." Moonshot AI has just released its Kimi K3 model. At a massive 2.8 trillion parameters, it's the world's largest open-weight AI model. Even more striking: On July 27, Moonshot released its full weights for free. Reaction in Washington was swift and hostile as White House officials accused Moonshot of "distillation," alleging Kimi K3 secretly copied Anthropic's Fable model but without offering concrete evidence. This explainer fact-checks this allegation, examines why it doesn't hold up and looks at what open-source models mean for global AI development.