Moonshot AI releases Kimi K3, 2.8 trillion parameter open-weight model

Kimi K3 features 2.8 trillion parameters, 1 million token context, native multimodal input, and Kimi Delta Attention for up to 6.3x faster decoding. It tops Code Arena and scores 71.6 on Perplexity's DRACO benchmark, surpassing GPT-5.6 Sol and Claude Fable 5. Moonshot open-sourced AgentENV and FlashKDA.