Yi3D
A lightweight Chinese 3D CAD tool that helps individual users and light design workflows produce simple parametric solids, sketch-driven models, and common exchange-format files.
Tool overview
Based on the available evidence, Yi3D is best judged as a lightweight 3D CAD tool for simple general-purpose modeling, not a mature industrial CAD suite and not a text-to-3D content generator. A more accurate analogy is a mini SolidWorks/AutoCAD-style parametric modeler: it supports sketches and standard solid features while emphasizing a very small install size and straightforward use.
Its practical value appears to be in basic solid and sketch-driven workflows. Multiple Zhihu posts consistently mention parametric primitives, boolean operations, sketch tools, and features such as extrude, revolve, sweep, loft, fillet, chamfer, shell, and draft, plus import/export for DXF, STEP, IGES, and STL. A 2026 post from the creator also shows an AI Agent-enabled version for conversational modeling, but that should be treated as a new interaction layer rather than proof that Yi3D is already a mature AI design platform.
On barrier and cost, the evidence supports that the software is small, around 30 MB, and positioned as lightweight.