Assets

Try a sample
Optional; only the first is used. With one it becomes image-to-video

Prompt

Organize as subject, action, style, camera, composition, mood. Write the sound too

Settings

Duration
Defaults to 8 seconds, billed per second
Resolution
720P and 1080P cost the same; 4K is 2.33× here, a steeper jump than on the standard model
Aspect ratio
Generate audioSwitching it off yields a silent clip
Person generation
Seed
8s × 720P
My generations0