Kimi K3 still trails Anthropic’s Claude Fable 5 and OpenAI’s GPT 5.6 Sol on overall performance, the company said on Friday, but consistently outperformed other tested models.
The model beat Claude Opus 4.8 and GPT 5.5 — models that sit just behind Anthropic and OpenAI’s leading-edge systems — on benchmarks including coding and general agents, according to Moonshot.
It’s China’s largest AI model so far, with 2.8 trillion parameters, referring to the size of its neural network.



But will it tell its users “Leave me alone, I know what I’m doing.”