Wan 3.0 or Seedance 2.5: which one for which brief
Pick Wan 3.0 for cheap 2 to 30 s drafts and heavy reference sets; pick Seedance 2.5 for ByteDance's long-take behavior. A decision table from Sume's catalog.
Pick Wan 3.0 when price, a 2-second minimum or a large reference set matters; pick Seedance 2.5 when you want ByteDance's long-take and referencing approach at up to 1080p. On Sume the two share the same endpoint, so you can run one prompt on both and compare.
Neither vendor page gives a quality benchmark we can cite, so the table sticks to numbers from the catalog.
Decision table
| Brief | Pick | Why |
|---|---|---|
| Draft a 30 s idea | wan-3.0 | $3.75 at 720p versus $17.33 |
| Very short loop, 2 to 3 s | wan-3.0 | Seedance 2.5 starts at 4 s |
| Large cast, 10 images | wan-3.0 | 10 image cap versus 9 |
| Final 30 s hero shot | seedance-2.5 | ByteDance's long-take focus |
| Image-to-video with end frame | either | both list start/end-frame |
A simple test
ByteDance launched Seedance 2.5 on 2026-07-31; fal's Wan 3.0 page is the source for the Wan list rate.
- Same prompt, 480p, 8 seconds on both: about $0.50 and $2.15.
- Keep the winner, re-run at 720p.
- Save the job ids and cost fields for the team.
Budget scenarios
A 20-ad test of 10-second 720p clips costs $25.00 on Wan 3.0 and $115.56 on Seedance 2.5. A single 30-second hero spot is $3.75 versus $17.33.
Whatever you pick, spend the first dollars on a 480p draft.
What would change the answer
If a third-party benchmark or your own side-by-side shows Seedance 2.5 handles your references better, the premium may be worth it. If the clip is under 4 seconds, Wan is the only option of the two.
Sources
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