Google Veo and OpenAI Sora, spec by spec

Google Veo and OpenAI Sora both print figures on 3 spec lines, resolution, frame shape and length; their readings differ on resolution and length. From 2 source pages, read 2026-09-25; no maker pays to be listed.

Fig. 1 Filled: the vendor prints a figure. Empty: no figure, or not read.

Google Veo and OpenAI Sora, reading by spec line, checked 2026-09-25.
Spec line	Google Veo	OpenAI Sora
Maximum resolution	4K, generated	1080p
Frame rate	One rate stated	No figure
HDR and bit depth	No figure	No figure
Aspect ratios	Landscape and portrait	Landscape and portrait
Longest single output	15 s or less	16 to 30 s
Watermark on output	Invisible mark	No figure

Inclusion rule. The six spec lines every deliverable page carries. Order. Sheet order of the spec lines.

1Where the two sheets part

Both offer landscape and portrait. Veo 3.1 generates up to 4k at 24fps for 4, 6 or 8 seconds; Sora prints 1920x1080 or 1080x1920 on sora-2-pro and generations of 16 or 20 seconds. Veo names its SynthID watermark; Sora's guide names no mark.

Maximum resolution

Google Veo: 720p, 1080p or 4k generated directly; 4k is not available for Veo 3.1 Lite. OpenAI Sora: 1080p exports, 1920x1080 or 1080x1920, on sora-2-pro; 1280x720 in the examples.

Aspect ratios

Google Veo: Landscape 16:9 by default, or portrait 9:16. OpenAI Sora: Landscape and portrait sizes: 1920x1080 or 1080x1920 on sora-2-pro.

Longest single output

Google Veo: 8 seconds per generation, with 4 and 6 also offered; 8 is required at 1080p and 4k. OpenAI Sora: Up to 20 seconds; both models support 16- and 20-second generations.

2Figures on file

Veo 3.1
720p, 1080p or 4k generated directly; 4k is not available for Veo 3.1 Litecontrol the resolutionGoogle AI for Developers, Veo 3.1 in the Gemini API / recorded 2026-09-25
Models
1080p exports, 1920x1080 or 1080x1920, on sora-2-pro; 1280x720 in the examplessora-2-proOpenAI API docs, video generation with Sora / recorded 2026-09-25
Veo 3.1
Landscape 16:9 by default, or portrait 9:16control the aspect ratioGoogle AI for Developers, Veo 3.1 in the Gemini API / recorded 2026-09-25
Models
Landscape and portrait sizes: 1920x1080 or 1080x1920 on sora-2-prosizesOpenAI API docs, video generation with Sora / recorded 2026-09-25
Model parameters
8 seconds per generation, with 4 and 6 also offered; 8 is required at 1080p and 4kdurationSecondsGoogle AI for Developers, Veo 3.1 in the Gemini API / recorded 2026-09-25
Choose size and duration
Up to 20 seconds; both models support 16- and 20-second generationsOpenAI API docs, video generation with Sora / recorded 2026-09-25

3One more delivery sheet beside Google Veo and OpenAI Sora

SceneMixer's printed figure on the checks where Google Veo and OpenAI Sora differ, read 2026-11-04.
Check	SceneMixer	Source
Maximum resolution	Resolution is set by the tier: Wan 3.0 at 480P (the default), 720P and 1080P, and a MiniMax H3 tier at 2K	SceneMixer MiniMax H3 tier guide
Longest single output	Segments of 15 or 30 seconds, chosen per episode; the tier table's longest clip is 30 seconds	SceneMixer, what comes out (video specs guide)

Inclusion rule. Checks on which the two tools differ and SceneMixer prints a figure; checks it prints nothing on are not shown. Order. The order checks take on every tool page.