Moonshot AI Releases Kimi K3.1 Pro, Strengthening 3D Modeling and Spatial Reasoning
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Moonshot AI has released Kimi K3.1 Pro, strengthening 3D creation and spatial reasoning capabilities, and launched the 3D Make feature, which supports online preview and editing of 3D models, downloading files for 3D printing, or exporting as videos and Live Photos. The model is the first product in the K3.1 series, supports a 1 million Token context, and can write and run scripts for software such as Blender, SolidWorks, and Rhino to complete modeling. Official BenchCAD results show that, in a test subset consisting of 1,000 files, the voxel IoU after tool invocation was 92.7%, versus 72.8% without tools; the model is currently integrated into the Kimi web client, Kimi Work, Kimi Code, and the API, the Highspeed version outputs at roughly 2 to 3 times the speed of the standard version, and the full model weights are planned for release before November 4.
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The original text presents the gap in voxel IoU before and after tool invocation on BenchCAD, which can be used to gauge the model's degree of tool dependence in spatial modeling tasks.
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近日，月之暗面发布Kimi K3.1 Pro，强化3D创作与空间推理能力，并上线3D Make功能，支持在线预览、编辑3D模型，下载用于3D打印的文件，或导出为视频及实况照片。该模型为K3.1系列首款产品，支持100万Token上下文。
月之暗面表示，用户提供文字描述、草图或参考图片后，模型可推断物体形状、比例及空间关系，通过编写并运行Blender、SolidWorks、Rhino等专业软件脚本完成建模，进一步修改部件、调整几何结构与材质，并将成果接入Three.js场景或游戏引擎。
应用方面，模型重点支持参数化建模，覆盖机械零件、建筑模型、可配置产品与定制家具等场景。官方展示的3D资产案例涉及品牌宣传片、游戏和交互式网页，并展示了结合Unity、Unreal Engine、Godot等引擎完成项目开发的能力。
评测方面，月之暗面公布的BenchCAD结果显示，在1000个文件组成的测试子集中，K3.1 Pro调用工具后的体素交并比为92.7%，无工具条件下为72.8%。该评测通过生成CAD代码，从多视角渲染图重建3D模型，考察空间理解与几何重建表现。
目前，K3.1 Pro已接入Kimi网页端、Kimi Work、Kimi Code及API。官方称，同步推出的Highspeed版本在同等模型能力下，输出速度约为标准版的2至3倍，完整模型权重计划于11月4日前发布。
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