AI TV Show Maker

Delivery specs for landscape AI video, as each vendor states them

Broadcast term: aspect ratio (16:9 and 21:9)

Aspect ratio is the frame's width to its height. 16:9 is the television and desktop standard, 21:9 the cinema-wide frame, 9:16 the vertical phone frame. From 9 source pages, read 2026-09-25; no maker pays to be listed.

Aspect ratio: reference and vendor useAspect ratio is the frame's width to its height. Vendors whose figures use it: Adobe Firefly, Alibaba Cloud Wan, DramaSo, Dreamina, Filmora, Google Veo, Grok Imagine and LTX Studio.TermAspect ratioDefined for this sheet.ReferenceYouTube upload encoding settingsVendorsAdobe Firefly, Alibaba Cloud Wan, DramaSo, Dreamina and more
Fig. 1 Definitions written for the sheet; reference and vendor lines are quoted.

1Reference

The standard aspect ratio for YouTube on a computer is 16:9.

YouTube Help, recommended upload encoding settings

Nineteen vendors on the sheet print shapes; two include 21:9.

YouTube calls 16:9 the standard ratio on a computer and adapts its player to other shapes.

2Vendors whose figures use it

Spec lines each vendor fillsA filled cell means the vendor states a value for that spec line; an empty one means no figure was found, or the page would not load.Spec lines each vendor fillsFigure as printedAdobe FireflyAdobe Firefly — Figure as printed: 16:9 and 9:16 in the generator's ratio control; the FAQ says ratios for any platformAlibaba Cloud WanAlibaba Cloud Wan — Figure as printed: Adaptive by default; fixed shapes run from 21:9 cinema width through 16:9, 4:3 and square 1:1 to 3:4 and 9:16 portraitDramaSoDramaSo — Figure as printed: Native 9:16 vertical; no landscape shape is namedDreaminaDreamina — Figure as printed: 16:9 for widescreen or 9:16 for vertical, chosen before generatingFilmoraFilmora — Figure as printed: Projects can be switched to vertical 9:16Google VeoGoogle Veo — Figure as printed: Landscape 16:9 by default, or portrait 9:16Grok ImagineGrok Imagine — Figure as printed: Seven shapes, from the default 16:9 through 3:2, 4:3 and square 1:1 to 3:4, 2:3 and 9:16 portraitLTX StudioLTX Studio — Figure as printed: 16:9 landscape or 9:16 portrait at each resolution
Fig. 2 A filled cell means the vendor states a value for that spec line; an empty one means no figure was found, or the page would not load.
Aspect ratio in vendor figures, one line per tool, checked 2026-09-25.
ToolFigure as printed
Adobe Firefly16:9 and 9:16 in the generator's ratio control; the FAQ says ratios for any platform
Alibaba Cloud WanAdaptive by default; fixed shapes run from 21:9 cinema width through 16:9, 4:3 and square 1:1 to 3:4 and 9:16 portrait
DramaSoNative 9:16 vertical; no landscape shape is named
Dreamina16:9 for widescreen or 9:16 for vertical, chosen before generating
FilmoraProjects can be switched to vertical 9:16
Google VeoLandscape 16:9 by default, or portrait 9:16
Grok ImagineSeven shapes, from the default 16:9 through 3:2, 4:3 and square 1:1 to 3:4, 2:3 and 9:16 portrait
LTX Studio16:9 landscape or 9:16 portrait at each resolution

Inclusion rule. Tools on the sheet whose recorded figure uses the term or its usual shorthand. Order. Alphabetical by tool name.

3Adjacent terms

  • Aspect ratios across twenty-nine tools

    • 4The production side of the spec

    For a delivery question like “Aspect ratio”, SceneMixer states the following about what it produces:

    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)

    Typically 60–120 seconds, always 9:16 vertical, ending on a hook. SceneMixer's episode outlines are generated with that pacing, and setting a project to 9:16 makes every segment vertical (the default is 16:9).

    SceneMixer, How to Make ReelShort-Style Dramas with AI — “How long is a ReelShort-style episode?” (read 2026-10-13)