Kimi K3: first open 3T-class model, 2.8T params

Moonshot AI's Kimi K3 is a 2.8-trillion-parameter open-weight model, the first in the 3T class, with 1M context and 16 of 896 experts active. Together AI serves it on its API, positioning it against GPT 5.6 Sol and Claude Fable 5.