Moonshot AI releases Kimi K3: 2.8T-parameter open-weights MoE model

Kimi K3 is a 2.8T-parameter sparse MoE model with native vision and a 1M-token context window, released as open weights on Hugging Face. Moonshot says Kimi Delta Attention and AttnRes deliver ~2.5x better scaling efficiency than Kimi K2; it ranks #1 on Code Arena fullstack and 3D Design.