GoKawiilMozilla report: Chinese open-weights AI models now trail US frontier models by just 4.4 months
A new State of Open Source AI report from Mozilla, shared with Ars ahead of its September 15 release, finds that top open-weights models from Chinese developers now perform nearly on par with closed frontier models from US firms like Anthropic and OpenAI. It cites Moonshot AI's Kimi K3 scoring only three points below Anthropic's Fable 5 on the Artificial Analysis Intelligence Index, despite costing roughly 30 percent as much to run.