Reels vs TikTok length limits and how many AI jobs fill each
Reels 3 min, TikTok 10 min recorded and 60 min uploaded (as reported). On Wan 3.0 that is 6, 20 and 120 jobs; only the first two fit Sume's 30-minute ceiling.
NapoleonCat reports Reels up to 3 minutes. Sociality.io reports TikTok recording in-app up to 10 minutes and uploads up to 60 minutes. The table turns each length into 30-second Wan 3.0 jobs, the longest single job Sume has, and the join cost.
Jobs and cost
Jobs = ceil(seconds / 30). Cost is jobs times 30 s times $0.125 a second at 720p, plus Timeline at $0.10 per started output minute. The Timeline spine ends at 1800 seconds.
| Length | Reported limit of | Jobs | Wan cost | Timeline | Fits Sume? |
|---|---|---|---|---|---|
| 60 s | - | 2 | $7.50 | $0.10 | yes |
| 3 min | Reels | 6 | $22.50 | $0.30 | yes |
| 10 min | TikTok recording | 20 | $75.00 | $1.00 | yes |
| 60 min | TikTok upload | 120 | $450.00 | $6.00 | no, over 1800 s |
Where the ceilings bite
The longer formats are a planning exercise as much as a generation one. Anything past 12 clips renders in chunks, and a 60-minute render is stopped first by the 1800-second spine ceiling. For the details see Timeline limits.
Use the maximum with care
Most posts that perform are far below these maxima. Take them as the edge of what is allowed, not a target.
Sources
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