What is AI UGC? Meaning, how it's made, and how it differs
AI UGC is UGC-style video made with AI: a generated presenter speaks your script to camera, the way a creator would on a phone. How it differs.

AI UGC is UGC-style video made with AI: instead of paying a creator to film themselves talking about a product on their phone, you write the script and an AI avatar, a generated presenter, performs it in the same casual, to-camera style. UGC, user-generated content, is content that customers and fans make themselves; UGC-style ads borrow its look.
On Sume, the generated creator is an Avatar 1.0 avatar that speaks your script in a talking video, and the Format catalog includes ready-made Formats with UGC in their names, such as sume-close-camera-ugc. The Sume facts come from the Generate avatar video, Create new avatar and Format catalog docs and the Sume API reference, read on 2026-09-28. Anything called current behavior is read from Sume's code.
What is a UGC-style video?
One person talks straight to a phone camera in an ordinary room, in a vertical frame, with the product in hand or in use. As an ad, it can be scripted in three beats: a hook, the product in use, and a call to action; UGC ad script for AI avatar videos covers the words.
The label now covers three kinds of video that can look alike: organic UGC that customers post on their own, creator UGC that a brand pays someone to film in that style, and AI UGC, where the person on screen is generated.
How is AI UGC different from creator UGC?
The difference is in how the video gets made. The look can be the same; who appears, who writes the words, and what it takes to change a line are not.
| Creator UGC | AI UGC with a Sume avatar | |
|---|---|---|
| Who appears | A real creator or customer | An avatar you create once, from a prompt, a profile or a photo, and reuse by handle |
| The words | The creator's, working from your brief | Yours: a script, or scenes in video_inputs |
| The product | The creator holds the real thing | An optional product_image; leave it out for a productless video |
| Changing a line | A new take or a reshoot | A new render |
| Speech | Whatever the creator speaks | English only in the talking video |
| Length | Whatever the platform allows | An estimated 4–60 seconds per video |
Is AI UGC still UGC?
Not in the original sense. No customer or creator made it, and nobody filmed it: it is an ad made to look like UGC. It also changes differently: a new line, a new product shot or a new hook is a new render from the same avatar, not a new booking with a creator.
How do you make an AI UGC video?
Write a short script in a creator's voice, then render it with a generated presenter. On Sume that is an Avatar 1.0 talking video from your avatar's handle, your script and an optional product_image, or a run of a catalog Format such as sume-close-camera-ugc or sume-mobile-app-ugc; AI UGC ad generator API has both requests in full.
What should I watch out for?
- An AI presenter has never used your product. In current code the talking video's clips are prompted to speak only the exact words of your script, so write claims you can stand behind, and don't present the avatar as a real customer.
- Before you publish, check each platform's current policy on AI-generated people and endorsements in ads, and the rules where you advertise; this post is not legal advice.
- One avatar per video, with scene backgrounds that resolve to one shared scene: a second person or a new room is another video.
- In current code the talking video refuses
captions; add them on an avatar video preview instead.
Sources
Related posts
More in Sume Avatar 1.0
- What is an AI digital twin? Twins vs photo and stock avatars
An AI digital twin is a custom avatar of one real person that speaks new scripts in their likeness. HeyGen trains it on footage; Synthesia starts from a photo.
- Introducing Sume Avatar 1.0
Sume Avatar 1.0 is a multi-agent orchestration system as a single avatar model.
- Avatar Face Swap API (Beta): apply an avatar face to a video
Avatar Face Swap 1.0 is a Beta Sume endpoint that applies a ready avatar's face to a short public source video. Required fields, limits, and polling.
- Avatar video previews: approve the first frame before rendering
Create an avatar video preview to get first-frame stills, regenerate them if needed, then call generate-video on the preview id to render the final video.
Written by Sume