Kimi K3: 2.8T open model beats benchmarks but stays behind closed rivals
Moonshot AI’s Kimi K3 arrives as the largest open‑source model at 2.8 trillion parameters, showing strong benchmark scores thanks to distillation from Claude. Yet its practical performance is uneven and it remains roughly four to six months behind the leading closed‑source systems, with spotty access and higher token costs limiting immediate adoption.