Seedance 2.5 vs Seedance 2: the price gap at 480p, 720p and 1080p
Seedance 2.5 costs 1.53x Seedance 2 at 720p and 1.67x at 1080p on Sume. Per-clip prices for 6, 10 and 15 s, and what 2.5 adds.
At 720p Seedance 2.5 costs $0.5778 per second against $0.378 for Seedance 2 on Sume, 1.53x. At 1080p the gap widens to 1.67x, and at 480p it is 1.53x.
Per clip
| Length / res | Seedance 2 | Seedance 2.5 | Difference |
|---|---|---|---|
| 6 s 720p | $2.268 | $3.4668 | $1.1988 |
| 10 s 720p | $3.78 | $5.778 | $1.998 |
| 15 s 720p | $5.67 | $8.667 | $2.997 |
| 6 s 1080p | $5.103 | $8.5293 | $3.4263 |
| 10 s 1080p | $8.505 | $14.2155 | $5.7105 |
| 15 s 1080p | $12.7575 | $21.3233 | $8.5658 |
What the extra money buys by contract
The documented difference is range: Seedance 2.5 accepts 4 to 30 seconds, Seedance 2 accepts 4 to 15. Both price 480p, 720p and 1080p in Sume's estimator. Sume makes no quality statement beyond that range difference.
Past 15 seconds
Seedance 2 stops at 15 seconds per job. A 30-second 720p clip on Seedance 2.5 is $17.334 in one job. Two 15-second Seedance 2 jobs at 720p are $11.34, but they are two separate clips, not one continuous take, so the lower number buys a different thing.
When the gap is worth it
- Clip longer than 15 s: the question is moot, only 2.5 does it in one job.
- Clip of 15 s or less: render the same prompt on both once and judge your own frames.
- High volume at 1080p: the 1080p gap is the largest, so test there first.
Sources
Related posts
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Written by Sume