Which entries publish a square output
One platform in this register accepts square ads at 640x640 or more. Six entries publish a square output shape: one as a pixel pair at 960 by 960 and five as a named one by one. Everything else would have to be cropped. As of 2026-10-25.
| Item | What is published | Detail |
|---|---|---|
| 960:960, as a pixel pair | One entry | Clears the 640x640 minimum, checkable from the page |
| 1:1, as a named ratio | Five entries | Clears it if the resolution tier is high enough |
| No square published | The remaining entries | A square placement means cropping a wider frame |
Inclusion rule. Shapes each page publishes, compared only against a shape a platform states it accepts on its own help page. Order. The entry whose value can be checked directly first.
1A pixel pair settles the floor and a ratio name does not
The surface accepts square from 640 by 640. A pair reading 960:960 answers that in one step. A ratio reading one by one does not, because the page never states how many pixels a square frame comes back with.
On the five named rows the check is done through the resolution ladder instead, and every one of those ladders reaches well past 640 pixels at its top rung. The answer is the same and it takes a second figure to get there.
2Cropping into square costs a third of the width
Taking a square from widescreen throws away about a third of the frame horizontally. A subject composed off-centre for a wide shot moves to the edge or out of the picture, and no re-encoding fixes that.
That is why shape sits in its own column even though vendors publish it far less often than resolution. Resolution is a quality decision that can be revisited; shape is a hard gate at the placement.
3Six out of fifteen is the finding
Square is the rarest of the shapes any surface here accepts. Nine entries publish a shape at all, and only six of those include a square option, so a square campaign has a smaller set of rows to generate from.
Six entries publish nothing about shape, and for those the question cannot be answered from the page the rest of the row was read from. A hollow cell records that rather than assuming either answer.
- Gen-4.5 image-to-videoLandscape 1280:720, 1584:672 and 1104:832, portrait 720:1280, 832:1104 and 672:1584, square 960:960shape given as a pixel pair rather than a ratio
- Aspect ratio parameter1:1, 16:9, 9:16, 4:3, 3:4, 3:2 and 2:3, with 16:9 the default
- Aspect ratios row16:9, 4:3, 1:1, 3:4, 9:16, 2:3, 3:2 and 21:9 on v6 and c1
4Making the ad itself
For ad work around “The square option”, SceneMixer's pages explain how its ad projects are produced:
16:9 landscape (SceneMixer's default) and 9:16 vertical (the usual short-drama frame), chosen per project.
SceneMixer, Seedance 2.0 in a Real Short-Drama Pipeline — “Which aspect ratios does the pipeline generate?” (read 2026-10-13)
Character sheets are always portrait and scene images always widescreen, whatever ratio the videos use.
SceneMixer, Vertical 9:16 or Landscape 16:9 — “Will choosing 9:16 make my character images vertical?” (read 2026-10-13)
5Sources
Format requirements come from Google Ads Help, read 2026-09-12, and tool limits from each vendor page listed on published limits, read 2026-09-22 and 2026-10-25. The rule against mixing the two is on method. Nearby: Identifiers and ceilings, Nothing about shape, Cards, not products.