Kimi K3 scored 57 on the Artificial Analysis Intelligence Index, putting its intelligence level on par with Opus 4.8 and GPT-5.5, but still trailing behind Fable 5 and GPT-5.6 Sol. K3's performance is now ranked third globally. Artificial Analysis is widely regarded in the industry as one of the most independent and rigorous AI model benchmarking platforms. Reaching this level is already impressive. For an open-source large model to rival the previous generation flagship products of cutting-edge closed-source models, that's already pretty awesome.