Seedance 2.5 1080p: $0.0234 per 1,000 tokens, not $0.0214
Seedance 2.5 uses a higher per-token rate at 1080p. An 8-second 16:9 clip costs $4.62 at 720p and $11.37 at 1080p on Sume, about 2.46 times as much.
An 8-second 16:9 Seedance 2.5 clip costs $4.62 at 720p and $11.37 at 1080p on Sume, which is 2.46 times as much. The reason is two multipliers stacked: 1080p has 2.25 times the pixels, and the 2.5 tier uses $0.0234 per 1,000 tokens at 1080p instead of $0.0214.
Sume's pricing code computes tokens as ceil(width x height x seconds x 24 / 1024), multiplies by the per-1,000-token list rate, and Sume bills the list price x 1.25 on video models.
The arithmetic
At 720p the frame is 1280 x 720, so 8 seconds is 172,800 tokens. At 1080p it is 1920 x 1080, so 388,800 tokens. Divide each by 1,000 and multiply by the rate.
| Model and size | Tokens | Rate per 1,000 | List | Sume (x1.25) |
|---|---|---|---|---|
| seedance-2.5 720p | 172,800 | $0.0214 | $3.698 | $4.62 |
| seedance-2.5 1080p | 388,800 | $0.0234 | $9.098 | $11.37 |
| seedance-2 1080p | 388,800 | $0.014 | $5.4432 | $6.80 |
What the extra rate costs
If the rate were flat at $0.0214, the 1080p clip would cost 10.40 dollars on Sume, not 11.37. The higher 1080p rate adds $0.97 to this one clip. Over a hundred clips that is a visible line.
The seedance-2 tier at 1080p is cheaper here because its rate is lower, so the comparison to make is between tiers at the size you need.
Practical use
- Review at 720p and render only the approved prompt at 1080p.
- For a social format that plays at phone size, 720p is often the size the platform keeps; test your own destination before spending the 2.46 times.
- Read the
usage.costvalue on a finished job to confirm the figure for your exact ratio, because the pixel size changes with aspect ratio.
Other ratios
The pixel size changes with the aspect ratio, so the token count does too. A 9:16 clip has a different frame from a 16:9 clip, and a 1:1 clip has a different one again. The Sume pixel table for each ratio is in the post on Seedance pixel sizes. The method is the same: tokens from the frame, then rate, then 1.25.
A reference video adds assumed seconds and a 0.6 multiplier on top. That calculation is separate from the one here and is worked through in its own post, so a request with a reference video should not use the figures in this table.
A budget example
Twenty 8-second 1080p clips on seedance-2.5 cost 20 x $11.37 = $227.45 at Sume's price. Twenty at 720p cost $92.45. The difference is $135.00, which is what choosing the larger frame for a whole batch buys you, in cash.
Check against the job
After a 1080p render finishes, compare usage.cost to the figure in the table. A match means your calculator uses the right rate. A gap usually means a different ratio, a reference video, or a model tier you did not intend. Fix the calculator before the batch, because the error repeats on every clip.
Sources
Related posts
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Written by Sume