Moonshot published the Kimi K3.1 Pro weights on Hugging Face, the release it had said would come before Nov. 4. The model card lists 2.8 trillion total parameters, 104 billion active parameters, a 1,048,576-token context, and text and image input, with MXFP4 weights. The Kimi K3.1-Pro license allows use and redistribution, but a Model-as-a-Service business above $20 million of revenue in any 12 months needs a separate commercial agreement.
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