Chinese startup Moonshot AI’s new AI model sent markets tumbling on Friday. This is what you need to know about the model and its babyfaced founder, Yang Zhilin.

Moonshot's Kimi K3 beat Claude Fable 5 and GPT 5.6 in some benchmarks... and it's an open model.

Kimi K3's early performance is fueling alarm in Silicon Valley and Washington.

By Tracy Qu and Raffaele Huang

Kimi K3 beats latest offerings by US rivals on some benchmarks