Kimi-K3 isn’t quite better than Fable yet, but it’s definitely getting closer.

Explain Like I'm Normal

Moonshot AI's new Kimi-K3 model is reportedly closing the gap with top-tier closed models like Claude 3.5 Sonnet, trailing by only about six weeks of development time. With nearly 3 trillion parameters, it proves that massive scaling is still the primary lever for performance, even if it makes local hosting impossible for most users. The benchmark data suggests that while OpenAI and Anthropic still lead, the 'moat' provided by closed-source weights is becoming paper-thin.