Moonshot AI launches Kimi K3, a 2.8T-parameter open-weight model

Kimi K3 has 2.8 trillion parameters, 1 million token context, and native multimodal capabilities with Kimi Delta Attention for 6.3x faster decoding. It scores 57 on the Artificial Analysis Intelligence Index, comparable to Opus 4.8 and GPT-5, and ranks 3rd on VoxelBench, just 100+ Elo points behind Fable.