BeckonBench
Measures 3d spatial reasoning, tool-calling stamina, working in an unfamiliar live environment (agentic test #2).
You are connected to a live Blender session through MCP tools. Build the classic Blender beginner scene: a delicious-looking donut with icing and sprinkles, sitting on a plate on a wooden table. Model the donut and its icing, scatter individual sprinkles, create convincing materials (soft dough, glossy icing, ceramic plate, wood), set up lighting and a camera for an appetizing composition, then render a final image at 1920x1080 and save it to disk, telling me the file path. Work step by step in the live scene so your progress is visible as you go — do not just execute one giant script at the end.
| runs first try | 3 |
| polish | 3 |
| prompt adherence | 2 |
| wow factor | 2 |
| total | 10 |
Perfect score. Stylized saturated donut — pink icing, scattered sprinkles, ceramic plate, orange wood planks — built live via MCP step by step, rendered 1920x1080 and self-verified, .blend saved. 4m 23s.
4m. 10.4k output tokens.
| runs first try | 3 |
| polish | 3 |
| prompt adherence | 2 |
| wow factor | 2 |
| total | 10 |
Perfect score. Photoreal soft-focus donut — dripping icing with drip edges, subsurface dough, depth of field, 139 objects with individually scattered sprinkles. Caught its own overexposed first render and re-lit within the one shot. 10m 38s.
11m. 51.2k output tokens.