Moonshot AI releases Kimi K3, a 2.8T parameter open-weights model

Kimi K3 is a 2.8T parameter sparse Mixture-of-Experts model featuring a 1M token context window and native vision support. It achieves 89.4% pass@4 on the DeepSWE benchmark, outperforming GPT-5.6 Sol at 2.8x better scaling efficiency and lower cost.