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

Kimi K3 features 2.8 trillion parameters, 1 million token context, native multimodal capabilities, and innovations like Kimi Delta Attention for up to 6.3x faster decoding. On DeepSWE coding benchmark, it achieves 2.8x more solves per dollar than Claude Fable 5, with competitive pass rates.