Moonshot unveiled Kimi K3; Alibaba previewed Qwen3.8 frontier models

Moonshot claims Kimi K3, the world's largest open-source model at 2.8T parameters, outranks nearly every US system in its testing, trailing only GPT-5.6 Sol and Claude Fable 5. Alibaba calls Qwen3.8 (2.4T parameters) "second only to Fable 5," with both models released openly.