Veo offers two shapes on a three tier ladder

The documentation publishes sixteen by nine, the default, and nine by sixteen. The shape column is the one field on this row that carries no condition, while the length and resolution columns next to it are bound together. As of 2026-09-22.

Inclusion rule. Values this documentation page states for Veo 3.1, with the conditions it attaches. The table shows the shape column beside the two that constrain each other. Order. The unconditional column first, then the two that constrain each other.

1The plainest column on a heavily conditioned row

Two shapes, one of them a stated default, no annotation. That makes shape the only field on this row a brief can fix without checking anything else, which is worth saying because the two columns beside it cannot be read independently at all.

A vertical eight second piece is therefore an eight second piece with all the tier conditions that implies, and the shape contributes nothing to the constraint. A planner who expects shape to be the difficult axis here will look in the wrong column.

2Two shapes and a 4k tier is an odd combination

The register's other 4k figure sits on a page that names no shape at all. Here a very high tier coexists with a short list of two, which describes a product aimed at the two surfaces that dominate short-form rather than at every frame a campaign might need.

Square is absent, as it is on most rows here. Only three entries in this column publish a one by one option, and a campaign that needs it has to pick from those rather than crop into it from widescreen.

3Where the default lands for advertising

Sixteen by nine as the default matches the Masthead and matches nothing else in the short-form set. Feed and Shorts placements are vertical, so the common case for advertising requires the field to be set and the uncommon case is the one that arrives free.

Three other rows in this register also default to widescreen, and one defaults to adaptive instead. Where a default is published at all it is almost always the horizontal shape, which is a fact about how these products were built rather than about where the advertising runs.

4Where this cell sits in the column

Inclusion rule. Every generator in the register, carrying whatever its own page says about output shape. Six rows say nothing and are marked hollow rather than dropped. Order. Alphabetical by generator name.

• Aspect ratios offered
  16:9, the default, and 9:16Google AI for Developers, Veo 3.1 / recorded 2026-09-22
• Resolutions
  720p, 1080p (8s length only), 4k (8s length only)tied to the lengthGoogle AI for Developers, Veo 3.1 / recorded 2026-09-22

5Sources

Read from Google's Veo documentation, checked 2026-09-22. The column itself is described on aspect ratio, and the rule that keeps surfaces and generators apart is on method. Next along this column: MiniMax, Wan 3.0.