Delivery primer: mixed-resolution timelines

An episode built from several generators, or several tiers of one, mixes resolutions: 720p clips beside 1080p and upscaled 4K. The timeline plays at one size, and everything below it is scaled up. From 7 source pages, read 2026-09-25; no maker pays to be listed.

An episode built from several generators, or several tiers of one, mixes resolutions: 720p clips beside 1080p and upscaled 4K. The timeline plays at one size, and everything below it is scaled up.

Scaled clips look softer next to native ones, most visibly in wide shots and text. Keeping each scene at one source resolution hides the join.

Where a vendor separates clip resolution from export resolution, the clip figure is the one that decides the picture.

1Vendor figures that bear on it

All videos are downloadable as MP4 files in resolutions up to 4K

Adobe Firefly, AI video generator page

Default value: 1080P. Valid values: 1080P 720P 480P

Alibaba Cloud Model Studio, Wan3.0 video generation API reference

"1280x720" is the only supported value currently.

Amazon Nova user guide, video generation access and usage

• FAQ
  MP4 downloads in resolutions up to 4Kclip length and downloadsAdobe Firefly, AI video generator page / recorded 2026-09-25
• Wan3.0 video generation
  1080P, 720P or 480P, with 1080P the defaultresolution parameterAlibaba Cloud Model Studio, Wan3.0 video generation API reference / recorded 2026-09-25
• Nova Reel
  1280x720, the only dimension currently supportedvideoGenerationConfig.dimensionAmazon Nova user guide, video generation access and usage / recorded 2026-09-25
• Seedance plans
  480P or 720P, as listed on each plan cardresolution optionsBytePlus, Dreamina Seedance product page / recorded 2026-09-25
• Model comparison
  1080p with the Kine 3.2 video model; Kine 1.1 and 2.2 are 720pKine 3.2Crreo, pricing / recorded 2026-09-25
• Omni Reference
  Omni Reference generates at 480P or 720Pper runDomoAI, AI drama generator scenario page / recorded 2026-09-25
• Model list
  A Seedance 2.0 4K model row for native 4K dailiesSeedance 2.0 4KDramaSo, home page and plans / recorded 2026-09-25

2How one pipeline outputs it

For a delivery question like “Mixed-resolution timelines”, SceneMixer states the following about what it produces:

The score is written for the episode and mixed to sit under the voices.

SceneMixer, Background Music in an AI Short Drama: The Built-in Score — “Can I choose the track, or change its volume?” (read 2026-10-13)

Its character becomes the tone of the episode’s own score, which is planned from the episode’s storyboard — usually one to three pieces — and mixed under the voices.

SceneMixer, Remake: How Spoken Lines and Music Are Read From the Clip, and What Ends Up in Your Episode — “Is the source music reused?” (read 2026-10-13)

3Continue the primer

• Letterboxing 21:9 inside 16:9
• What a streaming upload spec asks for

The primer reads printed figures; it does not measure any vendor's files.