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

Kimi K3 features 2.8 trillion parameters, 1 million token context, and native multimodal capabilities. It scores 57 on the Artificial Analysis Intelligence Index, rivaling Opus 4.8 and GPT-5. Its Kimi Delta Attention achieves up to 6.3x faster decoding in long contexts.