Moonshot AILaunchAI ModelsOctober 23, 2026

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

Read original source →simonwillison.net

Kimi K3.1 Pro is a 3T-class MoE with 2.8T total / 104B active parameters and a 1M-token context, scoring 55 on the Artificial Analysis Intelligence Index — 4th overall and 11 points above Kimi K3. Weights aren't out yet; Moonshot promises full release by Nov 4, 2026, with API pricing at $2/M input and $10/M output.

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