OpenSCAD LLM Benchmark: Comparing AI Coding Tools on Pantheon 3D Model Generation
By
jetter
Kettled twice. Extra chewy, extra trustworthy.
Summary
A practical benchmark comparing multiple AI coding tools (Codex 5.5 High, Claude Sonnet, Claude Opus, Cursor Composer, Google Antigravity, and ModelRift) on their ability to generate OpenSCAD code for building a 3D model of the Pantheon from architectural reference images. The benchmark evaluates how well each LLM handles spatial geometry and parametric CAD code generation, with results showing varying levels of success in translating visual architectural references into functional 3D models.
Key quotes
· 3 pulledThe LLM's ability to handle spatial geometry directly affects what we can ship, so we track how models improve on this kind of task.
The goal was to see how well each system could turn architectural reference material into parametric CAD code, using the OpenSCAD CLI to render previews and iterate.
The prompt was intentionally visual and architectural: build the Pantheon from reference images.
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