Recast the 9:16 and 16:9 cuts of one ad: same price, no ratio field

H3 Max Recast takes no aspect_ratio; output follows the source. A 15-second 9:16 cut and 16:9 cut are $5.63 each at 768p, $11.26 for the pair on Sume.

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H3 Max Recast has no aspect ratio setting, so a 9:16 cut and a 16:9 cut of the same ad are recast as two ordinary jobs priced by length and resolution only. For 15 seconds each that is $5.63 at 768p, or $11.26 for the pair, and $8.44 each at 1080p, $16.88 for the pair.

Why no aspect ratio is needed

Sume's catalog entry lists no aspect ratios for h3-max-recast, and the API refuses aspect_ratio with "H3 Max Recast does not support aspect_ratio." The model keeps the source's motion, camera and cuts, so the frame shape is whatever the source file has. If you send a vertical file you get a vertical result.

The pair, priced

Both cuts need their own job and their own photo upload, or the same photo URL twice. The price depends on seconds and resolution only.

One ad, two cuts, 15 seconds each, as of 2026-10-08
CutResolutionArithmeticBilled
9:16 vertical768p15 x $0.30 x 1.25 = $5.625$5.63
16:9 landscape768p15 x $0.30 x 1.25 = $5.625$5.63
9:16 vertical1080p15 x $0.45 x 1.25 = $8.4375$8.44
16:9 landscape1080p15 x $0.45 x 1.25 = $8.4375$8.44

One master or two

If you shoot one master and crop to vertical later, recast the master once and crop the result: that is $5.63 instead of $11.26. The risk is that the crop cuts off the new person. If the presenter is centered, one master works. If the presenter stands on one side in 16:9, recast the vertical cut separately, so that the face is where the vertical framing needs it.

  • Recast the file you will publish, not an earlier draft of it.
  • Check that the new person is inside the frame in each shape.
  • Use the same photo and prompt for both jobs.
  • Keep each job at 15 seconds or less per shot.

Limits that do not change

Each file must be 5 to 30 seconds with no shot over 15 seconds, and each job takes 1 to 4 photos. A 15-second file is at the shot limit exactly and is accepted.

Choosing which cut to recast

Recast the shape that you will spend the most media on. If most spend goes to vertical placements, recast the vertical file and treat the landscape version as secondary. A common pattern is to recast the 9:16 cut at 1080p for $8.44 and the 16:9 cut at 768p for $5.63, for a total of $14.07, because the vertical cut will fill a phone screen and the landscape cut will be used in a small embedded player. Both files can be queued at the same time, and each result is its own downloadable file.

Compare these figures with the nearby lengths when you finalize. Twelve seconds would cost $1.20 on H3 Max at 768p and fifteen would cost $1.50. Thirteen seconds is $1.30. The price is linear in seconds, so you can price any whole length from 5 to 15 by multiplying the per-second rate by the length.

Sources

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