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

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