Moonshot launches Kimi K3.1 Pro: 3T-class open-weight model with 65% fewer hallucinations

markjeffrey · x · 2026-10-24

Moonshot officially announced Kimi K3.1 Pro, its most capable 3T-class open-weight model: 2.8T total / 104B active parameters (MoE), 1M-token context, and multimodal support.\n\nHighlights include full-project coding (Unreal, Unity & Godot games), parametric 3D modeling in Blender and CAD, and finance work with hallucinations reduced by 65%. It is claimed to match the strongest proprietary models across coding, agentic and knowledge benchmarks. A faster K3.1 Pro Highspeed variant (2–3× speedup) is live on kimi.com, Kimi Work, Kimi Code and the Kimi API; open weights are promised by Nov 4, 2026.

Related event: Moonshot Releases Kimi K3.1 Pro Open-Weights Model(36 posts)→

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