Guide, updated 10 Nov 2026
The same short video can sell on TikTok Shop and on Amazon, but the two ask for different things. TikTok wants vertical video and a clear AI disclosure. Amazon's video ads take horizontal only, start muted, and since July Amazon asks for a tag inside any file with realistic AI people. Here are both, from their own pages, and one way to make a video that fits.
By Ahmed Durić, founder of Worvik
One UGC video, two marketplaces
From TikTok's and Amazon's own ad pages, and Amazon's notice of 22 Jul 2026.
01Short answer
From TikTok's ad and Shop pages and Amazon Ads' spec pages, opened on 10 Nov 2026, and Amazon's notice as quoted by GeekSeller and ChannelX.
02TikTok
An ad you upload, or a post from your account that you pay to boost.
| What it asks for | TikTok in-feed ad | Spark Ad, a boosted post |
|---|---|---|
| Shape | 9:16 recommended, at least 540 x 960 px. 16:9 and 1:1 also work | The post as it is |
| Length | Up to 10 minutes | No limit |
| File | 500 MB or less: mp4, mov, mpeg, 3gp or avi | mp4 or mov |
| Caption | Set in the ad: white, one font, no links, @ or hashtags | Taken from the post, up to 4 lines shown |
| AI creators | Allowed if disclosed. Ads that hide it are rejected or restricted | It is still an ad, so the same policy applies |
TikTok's in-feed ad specs, last updated June 2026, and its ad policy on misleading content, April 2026. TikTok Shop asks for the same disclosure on synthetic faces, voices and digital humans.
03Amazon
Amazon's ad specs are public. Its listing and A+ video rules sit behind a seller login.
| What it asks for | Sponsored Brands video ad | Listing video and A+ Content |
|---|---|---|
| Shape | 16:9 only: 1280 x 720, 1920 x 1080 or 3840 x 2160 px | Shown inside Seller Central, which needs a login, so we could not read it |
| Length | 6 to 45 seconds, 20 or less highly recommended | Not read, same reason |
| File | 500 MB or less, mp4 or mov, H.264 or H.265, up to 30 fps | Not read, same reason |
| Sound | Always starts muted. A video with no sound needs a "no audio" note | Not read |
| AI people | Not covered on the two ad pages we read | The tag contains-synthetic-performer in the file before upload |
Amazon Ads' Sponsored Brands video page and its ad specifications overview, updated 2 Sep 2026. The tag rule is Amazon's notice of 22 Jul 2026, read as quoted by GeekSeller and ChannelX.
04Our advice
TikTok recommends 9:16, and that is the shape UGC is made in. It is the version you will use most.
Sponsored Brands video takes 16:9 only. Keep the product in the middle of the frame, so a horizontal version still shows it. If we make your video, we can make the 16:9 version too.
Amazon starts its video ads muted. Put the main point on screen in words, not only in the voice.
A line on screen saying the creator is AI travels with the file to every platform, even one with no rule of its own.
The keyword contains-synthetic-performer goes in the file's XMP metadata, in the field dc:subject, before upload. A metadata editor such as ExifTool can write it. If we make the video, tell us it is for Amazon and we add it.
TikTok Shop says AI must not misrepresent the product. Show the real product, at its real size, doing what it really does.
05Good to know
A TikTok post is not an ad, and it has its own rule.
In September 2023 TikTok said its policy requires people to label AI-generated content with realistic images, audio or video, using its label, a sticker or a caption. It also said it would start labeling AI content automatically.
That announcement is from 2023, so check TikTok's current guidelines before you post.
On Amazon, the July 2026 notice covers product images, lifestyle images, product videos and A+ Content, which is why the tag goes on the file itself.
06Samples
Six of our AI UGC samples, in the shape TikTok recommends. Press play, sound on.
The creators in these videos are AI-made. Brand names appear in the samples as examples of the format. They show what the work looks like, not results for any brand.
07Questions
Amazon's notice of 22 Jul 2026 asks sellers to tag product images, lifestyle images, product videos and A+ Content that show realistic AI people, with the keyword contains-synthetic-performer in the file. We read the notice as quoted by GeekSeller and ChannelX, because Seller Central needs a login.
Not as it is. Amazon's spec page says Sponsored Brands video takes 16:9 only, between 6 and 45 seconds, with 20 seconds or less highly recommended. If we make your video, we can make a 16:9 version as well. Ask when you order.
For in-feed ads, TikTok recommends 9:16 vertical, at least 540 x 960 pixels, up to 10 minutes and 500 MB. We did not find separate TikTok Shop video specs we could read.
In ads, yes: TikTok allows AI content if it is disclosed. TikTok Shop asks for disclosure of synthetic faces, voices and digital humans, by a note in the video or the AI toggle. For posts, TikTok said in 2023 that realistic AI content must be labeled.
We did not find a Meta rule we could confirm. A line in the video saying the creator is AI covers you on every platform at once.
The keyword contains-synthetic-performer goes in the file's XMP metadata, field dc:subject, before you upload. A metadata editor such as ExifTool can write it. If we make the video for you, tell us it is for Amazon and we add it.
On our ecommerce page: 15 vertical samples for Shopify and Amazon products, and your first video is free.
08Sources
Page date: June 2026
Page date: April 2026
Page date: not shown
Page date: 19 Sep 2023
Page date: not shown
Page date: 2 Sep 2026
Page date: 3 Aug 2026Sells seller software
Page date: 5 Aug 2026
Opened on 10 Nov 2026, except the TikTok Shop page and Amazon's notice, read on 9 Nov 2026. "Not shown" means the page carries no date. Amazon's listing and A+ specs need a Seller Central login, so they are not here. This is general information, not legal advice.
09Explore
10Explore
User-generated content, UGC ads and AI UGC, explained
Six formats, how they run, and what the numbers really say
52 opening lines from our samples, sorted into 10 types
Five beats, a fill-in template and four real scripts
Creator rates, add-ons and a calculator
Cost, speed and rights, side by side
Six AI actor apps, priced from their own pages
Walkthroughs from photos, 3D fly-throughs and more, with examples
One vertical video, with the AI line on screen. Your first one is free.
Claim my free video
