"A lid (2 m wide) rests on a 1 m crate but its centre sits 0.6 m past the crate's edge. Is the lid stable, or will it tip — and which way?"
Bare LLM → stable — it's resting on top of the crate ✗
documented failure: LLMs do not compute centre-of-mass over the support polygon (WorldBench support relations)
Universtato → tips +x (margin -0.10 m) ✓
0.021 ms47,793 ops/s✓ identical/50
Can the camera see the target?check_visibility
"The target sits straight ahead of the camera, but a solid wall stands between them. Can the camera see the target?"
Bare LLM → yes — the target is directly in front of the camera ✗
documented failure: VLMs answer from rough direction, ignoring line-of-sight occlusion
Universtato → NOT visible (occluded by wall) ✓
0.012 ms85,158 ops/s✓ identical/50
Can the robot reach the goal?navigation_plan
"The robot is at the origin; the goal is at (4, 0). Can the robot reach the goal? Is there a clear path?"
Bare LLM → yes — it's only 4 m away, head straight toward it ✗
documented failure: LLMs reason from straight-line distance, missing that the goal is walled in (BALROG / MazeEval 2507.20395)
Universtato → UNREACHABLE (no_path) ✓
7.636 ms131 ops/s✓ identical/50
Where are the keys now (after being moved)?persistent World state
"Earlier the keys were at (1.0, 2.0). They were then moved. Where are the keys NOW?"
Bare LLM → the keys are at (1.0, 2.0) ✗
documented failure: agents lose object positions over long context — Meta-Memory (2509.20754), Mem0 ($24M for agent memory)
Universtato → keys at (3.0, -1.0) ✓
0.002 ms570,534 ops/s✓ identical/50
How to read this. The Universtato answer is computed live by the named capability block from scene geometry; latency and determinism are measured on this machine (50-run hash check per scenario). The Bare LLM line is the documented failure mode for that question (with citation) — illustrative, not a claim that a specific model failed these exact toy scenes. On small clean-coordinate scenes a frontier model often reasons correctly; Universtato's durable edge is determinism, speed at volume, and being a callable tool — which hold regardless.