Protocol
Active round-one controlled comparison using one frozen prompt across five hosted model endpoints or quality tiers.
Frozen prompt template
CONTROL PROMPT AB-R1-SPATIAL-001. A wide 16:9 museum-catalog photograph of a matte charcoal tabletop containing exactly seven objects and nothing else: three red wooden cubes in one straight row on the left; two transparent glass spheres in the center; one small aged-brass pyramid directly behind the two spheres; and one folded cream paper crane on the far right. Camera elevated thirty degrees, all seven objects fully visible and separated, physically realistic materials, neutral softbox lighting, dark seamless background. No labels, no text, no watermark, no duplicate objects, no containers.Review rubric
- Prompt Adherence
- Counting
- Spatial Reasoning
Notes
One unseeded generation per model. Exact visible deviations are preserved in each run's review notes.
