Moonshot AILaunchAI ModelsOctober 23, 2026

Moonshot releases Kimi K3.1 Pro, a 2.8T-param open-weight model

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Kimi K3.1 Pro is a 2.8T total / 104B active MoE with a 1M-token context window, priced at $2/M input and $10/M output — half of Claude Opus 5.5. It scored 55 on the Artificial Analysis Intelligence Index, 4th overall and behind only Opus 5.5 (58). Weights are promised by Nov 4, 2026.

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