$1 of AI video with sound: seconds per Sume model id
A dollar buys 16 s of Wan 3.0 at 480p, 10 s of H3 Max at 768p, 8 s of Omni at 720p or 4 s of Kling 3 with sound. Sume rates, rounded up per job.
One dollar of Sume credit buys 16 seconds of Wan 3.0 at 480p, 13 seconds of MiniMax H3 at 768p, 10 seconds of H3 Max at 768p, 8 seconds of Gemini Omni Flash 1.1 at 720p, or 4 seconds of Kling 3 with sound on. Every one of those clips has audio. The figures are whole seconds you can request at the Sume rate, with each job rounded up to the cent.
Per second is the wrong lens for short clips, because minimum lengths differ. Omni starts at 3 s, Kling at 4 s, H3 at 5 s and Wan at 2 s.
The table
Sume's rate is the provider list price times 1.25. The last column is the longest clip that stays at or under $1.00 on that row, inside the id's allowed duration range.
| Id and tier | Sume rate per second | Longest clip under $1 |
|---|---|---|
| wan-3.0, 480p | $0.0625 | 16 s ($1.00) |
| wan-3.0, 720p | $0.125 | 8 s ($1.00) |
| wan-3.0, 1080p | $0.25 | 4 s ($1.00) |
| minimax-h3, 768p | $0.075 | 13 s ($0.98) |
| minimax-h3-max, 768p | $0.10 | 10 s ($1.00) |
| minimax-h3-max, 1080p | $0.20 | 5 s ($1.00) |
| gemini-omni-flash-1.1, 720p | $0.125 | 8 s ($1.00) |
| kling-3, sound on | $0.21 | 4 s ($0.84) |
| kling-3, silent | $0.14 | 7 s ($0.98) |
Where a dollar does not reach
Some tiers cannot make a clip for $1 at all. Omni at 4K is $0.375 per second and its minimum is 3 seconds, so the shortest clip is $1.13. Wan at 1080p stops at 4 seconds. If you want a cheap proof of concept, start at the lowest resolution on the id you will finish on, because motion and prompt behavior carry over better than they do across ids.
How to use the numbers
Use this table to size a test, not to choose a model. A cheap id that cannot take your reference set or your aspect ratio is not cheap. Check the limits on the catalog row first, then spend the dollar. When the clip is done, read usage.cost on the poll response: that is the billed amount, and it is what your ledger should record.
Reading the table honestly
A few cautions keep the numbers useful.
Rounded up per job, the figures above can differ from a naive multiplication by a cent or so.
- Rates come from Sume's catalog and can change, so re-read before you budget.
- Seedance 2.5 is left out because it bills on video tokens, not a flat second.
- Cheap and short is not the same as cheap and useful; judge by the usable clip.
- Failed jobs refund their reserve, so count only completed clips in your cost per clip.
Sources
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