Kimi K3: open frontier model with 2.8T params, 1M context

Moonshot AI's Kimi K3 is a 2.8 trillion parameter, 1 million context native multimodal model featuring Kimi Delta Attention for up to 6.3x faster decoding and Attention Residuals for 25% higher training efficiency. It is open-weight and available on Nebius and Cursor from Day 0, with components AgentENV and FlashKDA open-sourced.