H3 Max vs Seedance 2.5 for 1080p clips with sound
Both give 1080p with sound on Sume. H3 Max runs 5-15 s at a 1080p list of $0.16/s ($0.20/s billed); Seedance 2.5 runs 4-30 s. Read 2026-10-13.
For 1080p with sound, minimax-h3-max is the choice when the clip is 5 to 15 seconds and you want a per-second rate you can quote: $0.16 list, so $0.20 billed at the 1.25 multiplier. seedance-2.5 is the choice for anything over 15 seconds, up to 30. Its billing is per 1000 video tokens, so this post gives no per-second figure for it.
Limits side by side
Both take text, first and end frames, and references.
| Limit | `minimax-h3-max` | `seedance-2.5` |
|---|---|---|
| Length | 5-15 s | 4-30 s |
| Resolutions | 480p, 768p, 1080p | 480p, 720p, 1080p |
| 1080p note | latent refinement from native 768p | listed tier |
| Audio | native stereo, no toggle | audio supported |
| Reference images | up to 9 | per row |
| Billing | per second | per 1000 video tokens |
Which to pick
If you need to cut cost on tests, run H3 Max at 480p first: its list rate is $0.05 per second, $0.0625 billed. Move to 1080p only for the final. If you need a clip longer than 15 seconds, pick Seedance 2.5 and check the job estimate before submitting.
Sources
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