Cartesian by Formas is an AI 3D modeling tool for architecture and product design that allows users to edit individual objects within models while preserving their spatial relationships. The tool supports precise geometry editing, BIM workflows, and integrates with multiple file formats and platforms including AutoCAD, Rhino, and SketchUp.
A comprehensive Blender BPY skill enables smaller LLMs like DeepSeek V4.1 Flash to generate higher-quality 3D models through a structured three-stage workflow (planning, building, self-review) rather than unassisted code generation. Built for Capybala, an AI agent desktop app, the skill demonstrates that models without 3D specialization can produce professional results when given proper scaffolding, though performance varies by model capability and certain domains like vehicles and human figures remain weak points.