Google Antigravity 2.0 Tops OpenSCAD Architectural LLM Benchmark
Original: Antigravity 2.0 Tops the OpenSCAD Architectural 3D LLM Benchmark View original →
The Benchmark
ModelRift tested six AI coding tools on generating an OpenSCAD parametric 3D model of the Pantheon from two reference images and a minimal prompt, targeting genuine spatial reasoning in a complex geometric task.
Results
- Google Antigravity 2.0 — 4.5/5 autonomous quality (best). Researched actual Pantheon dimensions; the only model to include the interior coffered ceiling with five rings of 28 coffers
- ModelRift/Gemini Flash 3.0 (human-in-loop) — 3.8/5 overall best, 2× Antigravity's time
- Claude Sonnet — 3.4/5. Cleanest autonomous proportions
- Codex 5.5 High — 3.0/5, with a preview-vs-mesh mismatch
- Claude Opus — 3.0/5
- Cursor Composer — fastest, worst quality at 1.4/5
What Made Antigravity 2.0 Stand Out
Launched at Google I/O 2026, Antigravity 2.0 is a Gemini 3.5 Flash High-powered agent-first desktop app. Where other tools modeled only the facade, Antigravity independently researched real Pantheon dimensions and created a cutaway mode exposing both interior and exterior detail.
Key Takeaways
Speed did not correlate with quality. Visual feedback loops outperformed pure text iteration. Preview correctness is not mesh correctness — a subtlety that caught Codex off guard and matters greatly for production 3D workflows.
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