Moonshot releases Kimi K3.1 Pro: 2.8 trillion total parameters, 104 billion active units; weights to open on November 4.
Moonshot has released Kimi K3.1 Pro, a large-scale post-training version of the K3 series. It features 2.8 trillion total parameters, a 104 billion parameter active multi-modal MoE architecture, and a context window of 1 million tokens. The API is now live, with weights scheduled to open on November 4, 2026. The Highspeed version delivers output speeds 2–3 times faster than the standard version at double the price.
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