Alibaba Cloud Wan and BytePlus Seedance, spec by spec

Alibaba Cloud Wan and BytePlus Seedance both print figures on 3 spec lines, resolution, frame shape and length; their readings differ on resolution and frame shape. 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.

Alibaba Cloud Wan and BytePlus Seedance, reading by spec line, checked 2026-09-25.
Spec line	Alibaba Cloud Wan	BytePlus Seedance
Maximum resolution	1080p	720p
Frame rate	One rate stated	N/A, unread
HDR and bit depth	No figure	N/A, unread
Aspect ratios	21:9 included	None listed by name
Longest single output	16 to 30 s	16 to 30 s
Watermark on output	Off by default	N/A, unread

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

1Where the two sheets part

Both print 30 seconds as the top of their range. Wan3.0 lists 1080P by default and six ratios including 21:9; BytePlus lists 480P or 720P on its plan cards and says only 'multiple aspect ratios'.

Maximum resolution

Alibaba Cloud Wan: 1080P, 720P or 480P, with 1080P the default. BytePlus Seedance: 480P or 720P, as listed on each plan card.

Aspect ratios

Alibaba Cloud Wan: 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 portrait. BytePlus Seedance: Multiple aspect ratios, not listed on the product page.

Longest single output

Alibaba Cloud Wan: 2 to 30 seconds per generation without video input; 5 seconds by default. BytePlus Seedance: 4 to 30 seconds per video; Seedance 2.5 is described as 30-second direct output.

2Figures on file

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
Seedance plans
480P or 720P, as listed on each plan cardresolution optionsBytePlus, Dreamina Seedance product page / recorded 2026-09-25
Wan3.0 video generation
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 portraitratio parameterAlibaba Cloud Model Studio, Wan3.0 video generation API reference / recorded 2026-09-25
Seedance
Multiple aspect ratios, not listed on the product pagecustomizable outputBytePlus, Dreamina Seedance product page / recorded 2026-09-25
Wan3.0 video generation
2 to 30 seconds per generation without video input; 5 seconds by defaultduration parameterAlibaba Cloud Model Studio, Wan3.0 video generation API reference / recorded 2026-09-25
Seedance plans
4 to 30 seconds per video; Seedance 2.5 is described as 30-second direct outputvideo durationBytePlus, Dreamina Seedance product page / recorded 2026-09-25

3One more delivery sheet beside Alibaba Cloud Wan and BytePlus Seedance

SceneMixer's printed figure on the checks where Alibaba Cloud Wan and BytePlus Seedance 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
Aspect ratios	16:9 landscape by default, or 9:16 portrait, chosen once per project	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.