Stillwater Pavilion
Reasoning effort: high
A timber pavilion in an Australian garden, built from code: 42 object families, six reversible object interactions, and a matching native USDZ environment.
Open Stillwater PavilionSpatial Web Evals
Compare what AI models build for the spatial web. Open each experience, see which model made it, and read what held up in testing.
Artifacts by provider and model
Build an artifactAnthropic
Claude Opus 5.5
OpenAI
GPT-6 Astra
Living Pavilion
Reasoning effort: high
A furnished garden with 389 procedural meshes, five reversible object interactions, a native USDZ environment, and a reproducible eval prompt.
Open Living PavilionHow each eval runs.
Brief
Give each model the same kind of spatial design task, with clear goals and limits.
Build
The model produces a working experience you can open, explore and test.
Report
We record what worked, what broke, and what still needs checking on a device.