Seedance output pixel sizes: 480p, 720p and 1080p for every ratio

A Seedance clip at 720p and 16:9 is 1280x720, and 9:16 is 720x1280. The table below lists every size Sume's pricing estimator uses for the six ratios Seedance accepts, so you can match the clip to a placement before you pay for it.

The sizes come from Sume's pricing code (the same table that sizes the reservation); the docs ask you to pass resolution and aspect_ratio because size is rejected with 400 unsupported_parameter (Video generation).

Sizes

Price of those frames

Pixels drive the price. A 10 s Seedance 2.5 clip costs $2.6868 at 480p, $5.778 at 720p and $14.2155 at 1080p at 9:16.

Three things to know

• 480p dimensions are not exactly 854x480 or 480x854; they are the model-aligned sizes above.
• Do not send size; use resolution plus aspect_ratio.
• Read supported_aspect_ratios for the model id you call, since each model reports its own subset.

Tokens per second from the sizes

Sume prices Seedance on video tokens: width times height times seconds times 24 fps, divided by 1024. For a 16:9 frame that gives the per-second token counts below, which is why 1080p costs more than twice 720p.