← all videos

Birds chirp brightly from a tree on the left side of a yard. A lawn sprinkler on the right side hisses in steady bursts.

C1-2-10 Steady State · source_anchoring principle: Multi-Source Spatial Separation (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

  • birds
  • a tree
  • a lawn sprinkler
  • a yard

Event: birds chirp in a tree and a sprinkler runs in a yard

Audio presence

  • birds
  • a lawn sprinkler

Sound: ['bird chirps', 'sprinkler hiss']

Key standards

Visual physical commonsense (V-PC)

  • Birds remain visible in a tree on the left side of the yard at a stable visible position and visibly chirp during the bird-call audio.
  • A lawn sprinkler remains visible on the right side of the yard at a stable visible position.

Audio physical commonsense (A-PC)

  • The bird audio carries the bright high-frequency chirp timbre of real stationary bird calls.
  • The sprinkler audio carries the broadband water-spray hiss timbre of a real lawn sprinkler in steady rhythmic bursts.

Cross-modal physical commonsense (AV-PC)

  • The bird chirps are localized to the left side of the audio field, matching the birds' visible left-tree position.
  • The sprinkler hiss is localized to the right side of the audio field, matching the sprinkler's visible right-side position.