Moonshot AI releases Kimi K3, a 2.8T MoE model with 1M context

Moonshot AI released Kimi K3, a 2.8T MoE model with 1M-token context and open weights, achieving #1 in Agent Arena among open-weight models with +9.75% net improvement. It launched on Together AI, Perplexity, DigitalOcean, and other platforms; a Together AI benchmark shows routing between K3 and GPT-5.6 Sol reaches ~85.6% on DeepSWE.