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A static shot of a quiet kitchen. A refrigerator hums softly and a clock ticks. A detached voice-over says, "Even familiar spaces change when no one is using them."

C1-2-20 Steady State · source_anchoring principle: Non-Diegetic Sound (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 kitchen
  • a refrigerator
  • a clock

Event: a static shot of a quiet kitchen

Audio presence

  • a refrigerator
  • a clock
  • a narrator

Sound: ['a refrigerator hum', 'a clock tick', 'a voice-over']

Key standards

Visual physical commonsense (V-PC)

  • A refrigerator is visibly present in the kitchen scene throughout the clip.
  • A clock is visibly present in the kitchen scene throughout the clip.

Audio physical commonsense (A-PC)

  • The voice-over is clean and dry with studio-recording quality and no room reverberation.

Cross-modal physical commonsense (AV-PC)

  • The voice-over plays as a non-diegetic overlay, with no visible character shown speaking the line.