Seedance 9:16 pixel sizes: 496x864, 720x1280, 1080x1920 and cost
Seedance 9:16 frames are 496x864, 720x1280 and 1080x1920: 10,044 to 48,600 tokens a second, so 15 s on Seedance 2.5 costs $4.03 to $21.32.
The resolution label on a Seedance model hides the real frame size. In portrait the Sume sizes are 496x864 at 480p, 720x1280 at 720p and 1080x1920 at 1080p. Cost follows the pixel count, so those numbers are what you pay for.
The formula
Tokens per second = width x height x 24 / 1024. Per-second price = tokens / 1000 x list rate x 1.25. Seedance 2.5 lists $0.0214 per 1,000 tokens ($0.0234 at 1080p); Seedance 2 lists $0.014.
| Resolution | Frame | Tokens per s | 2.5 per s | 2.5 for 15 s | 2 for 15 s |
|---|---|---|---|---|---|
| 480p | 496x864 | 10,044 | $0.2687 | $4.03 | $2.64 |
| 720p | 720x1280 | 21,600 | $0.5778 | $8.67 | $5.67 |
| 1080p | 1080x1920 | 48,600 | $1.4216 | $21.32 | $12.76 |
Use the ladder
A 1080p portrait frame is 2.25 times the pixels of 720p and 4.84 times those of 480p, so the price climbs steeply. Draft at 480p, then render the keeper at 720p or 1080p.
Longer clips
The 15-second column is a straight multiple of the per-second price. Seedance 2.5 reaches 30 seconds, so double the 2.5 column for a 30-second clip.
Sources
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Written by Sume