A 31-second video is 1 s over the upscale cap: split it for $0.42

A 31-second clip cannot go through Sume video upscale in one job, because duration_seconds accepts 1 to 30. Split it into a 16-second and a 15-second part, upscale both, and join them: 31 x $0.009 = $0.279 for the upscale, $0.04 for two trims and $0.10 for a one-minute timeline render, so $0.419 in all. Trimming to 30 seconds instead costs $0.29.

Two ways out

The first route keeps every frame. Trim jobs are $0.02 each, and a timeline render is $0.10 per output minute with a minimum of one minute. For a 31-second result that is the minimum charge. The second route drops the last second, which is often a fade or a dead frame on ad creative, and saves the second trim and the render.

What the cap means

The cap is 30 seconds of input per job, and the catalog's top price for a single job is 30 x $0.009 = $0.27. There is no way to pay more to go over it. A longer clip means more jobs.

Trim reads a clip that already lives in your Sume workspace, so a file from elsewhere has to be imported first. Trim takes start and one of end or duration, and returns a new MP4. For the split route, cut at 0 to 16 and 16 to 31, or, better, at a scene change near the middle so the join is invisible.

Join without a visible seam

Two upscaled parts that meet in the middle of a shot can show a small change in sharpness or color. Choose the cut point at a hard cut or on a still moment. If the clip has no cut, keep the overlap at zero and use a short cross-fade in the timeline.

Also keep the audio in mind. If the clip has a spoken line, cut between sentences. Check the final file's length: it should equal 31 seconds to within a frame.

For anything much longer than this, the 30-second cap post and the 5-second hold note cover the pattern and the hold.

If you have 100 of these

A batch of 100 clips that are all 31 seconds long costs 100 x $0.419 = $41.90 by the split route and 100 x $0.29 = $29.00 by the trim-to-30 route. The $12.90 difference buys back 100 last seconds, so ask whether those seconds carry anything. On ad creative they are usually a logo hold that you can re-add in the timeline.

Timeline renders also have a floor of one minute, so joining is billed as a full minute whatever the output length.