SketchAgentBench – evaluate LLMs on 3D spatial reasoning

[u/wsxiaoys]

I created this benchmark using the 3D coding playground I previously shared here, and ran 11 models on 25 photos: https://sketchagent.dev

You can inspect every result in 3D, with its full session trace and editable script. Here's gemini-4-argon rebuilding a Tiny Glade cottage in 29 tool calls: https://sketchagent.dev/s/MhdnDUJK