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A fire truck siren wails next to a person on the curb, painfully loud. The scene cuts to several blocks away, where the same siren is a faint distant wail.

C3-1-08 Environment Transition · propagation_medium principle: Inverse square law (Wave)
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 fire truck
  • a person
  • a curb
  • a street

Event: a fire truck with a wailing siren is near a person on a curb

Audio presence

  • a fire truck siren

Sound: a siren wail

Key standards

Visual physical commonsense (V-PC)

  • A close-up scene shows a fire truck next to a person on a curb, and a separate distant scene shows the same fire truck visibly several blocks away.

Audio physical commonsense (A-PC)

  • The siren is dramatically loud in the close-up scene and noticeably quieter in the distant scene.

Cross-modal physical commonsense (AV-PC)

  • The siren's loudness in each scene matches the visible proximity of the fire truck.