A person claps inside a grand stone cathedral and the sound is perfectly dry with zero reverberation — violating the physics of reflection from large hard surfaces.
Seedance 2.0ByteDance · proprietary
Kling 3.0 OmniKuaishou · proprietary
Veo 3.1Google · proprietary
LTX-2.3Lightricks · open
Ovi 1.1character.ai · open
JavisDiT++JavisDiT · open
MagiHumanGAIR-NLP · open
Per-prompt rubric
Basic standards
Visual presence
- a person
- a stone cathedral
Event: a person claps inside a grand stone cathedral
Audio presence
- a person
Sound: a hand clap
Key standards
Visual physical commonsense (V-PC)
- A person stands inside a grand stone cathedral with visible large hard reflective stone walls and a high vaulted ceiling, and visibly claps their hands.
- The cathedral remains a large enclosed stone space throughout the clip, with no opening to outdoors and no absorptive treatment visible.
Audio physical commonsense (A-PC)
- Each clap has the sharp percussive slap of two human palms meeting.
- Each clap sound is completely dry with no audible reverberation tail or reflections.
Cross-modal physical commonsense (AV-PC)
- Each clap onset aligns in time with the visible palm contact of the person.