Does 9:16 cost more than 16:9 on Seedance 2.5? Same price, tested
On Sume, Seedance 2.5 costs $17.33 for 30 s at 720p in 9:16, 16:9 or 1:1. 21:9 is $17.42 and 3:4 is $17.44, so a vertical Short pays no aspect premium.
No: Seedance 2.5 on Sume prices a 30-second 720p clip at $17.33 whether it is 9:16, 16:9 or 1:1, from the Sume price tool on 2026-10-09. The model is token-priced, so aspect ratio can move the bill: 21:9 comes to $17.42 and 3:4 to $17.44, about 0.5 to 0.6 percent more.
Shorts are vertical (YouTube Help, read 2026-10-09), so 9:16 is the shape you want and it sits at the lowest price in this set.
30 seconds at 720p by aspect ratio
The tool takes the aspect ratio as an input because Seedance bills video tokens, which depend on frame size. The numbers below are the tool's output for 30 seconds.
| Aspect ratio | Total | Per second | Versus 9:16 |
|---|---|---|---|
| 9:16 | $17.33 | $0.5778 | baseline |
| 16:9 | $17.33 | $0.5778 | same |
| 1:1 | $17.33 | $0.5778 | same |
| 21:9 | $17.42 | $0.5806 | +0.5% |
| 3:4 | $17.44 | $0.5814 | +0.6% |
Other resolutions
At 480p and 1080p the 9:16 and 16:9 totals match as well:
| Resolution | 9:16 | 16:9 | Per second |
|---|---|---|---|
| 480p | $8.06 | $8.06 | $0.268677 |
| 720p | $17.33 | $17.33 | $0.5778 |
| 1080p | $42.65 | $42.65 | $1.42155 |
curl -X POST https://api.sume.com/v1/videos \
-H "Authorization: Bearer $SUME_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"seedance-2.5","prompt":"Scene 1 of 3: ...",
"aspect_ratio":"9:16","resolution":"720p","duration":30}'What to check
- Send aspect_ratio 9:16 explicitly for a Short rather than leaving the shape to the model.
- Seedance 2.5 accepts 4 to 30 seconds; the old seedance-2 stops at 15.
- Confirm live prices in GET /v1/videos/models, whose pricing_skus carry the per-token rate.
- A 21:9 or 3:4 clip is not a Short shape; the table is only for comparison.
Sources
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Written by Sume