BREAKING 🔥: Kimi AI officially announced Kimi K3.1 Pro, a 2.8T total and 104B active params MoE open model.
On benchmarks, Kimi K3.1 Pro performs on par with leading AI models like Opus 5.5 and GPT-6 Astra, while being significantly cheaper.
Open weights are coming on November 4th as well!
Introducing Kimi K3.1 Pro: our most capable 3T-class open-weight model. 🔹 1M-token context, 2.8T total / 104B active params (MoE), Multimodal. 🔹 Full-project coding: games in Unreal, Unity & Godot. 🔹 Excels at parametric 3D modeling in Blender & CAD. 🔹 More reliable at finance work: Accurate modeling with hallucination down by 65%. 🔹 Matching the strongest proprietary models across coding, agentic and knowledge benchmarks. Kimi K3.1 Pro and K3.1 Pro Highspeed (2–3× faster) are now live on http://Kimi.ai, Kimi Work, Kimi Code, and the Kimi API. Open weights by Nov 4, 2026. 🔗 API: http://platform.kimi.ai 🔗 Tech blog: http://kimi.ai/blog/kimi-k3-1-pro
This story is featured in top picks: “Moonshot AI introduces Kimi K3.1 Pro, a 3T-class open-weight model”
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Original title: BREAKING 🔥: Kimi AI officially announced Kimi K3.1 Pro, a 2.8T total and 104B active params MoE open model.
