Kimi K3: 2.8T Parameter Model Ships With 1M Context

Kimi K3 ships with 2.8 trillion parameters, 1 million context length and native multimodal capabilities, prompting immediate praise from Meta AI lead Soumith Chintala. The model introduces Kimi Delta Attention for up to 6.3x faster decoding at million-token lengths and Attention Residuals that lift training efficiency 25 percent for under 2 percent extra cost. Built explicitly for long-horizon agentic coding and self-evolving workflows, Kimi K3 is live today on Kimi.com, Kimi Work, Kimi Code and the Kimi API, with open weights scheduled for July 27, 2026.