UGC testimonial ad with an avatar: 10 variants of 15 s cost $27.60

A 15-second talking-head UGC ad costs $2.76 on Sume's Standard avatar tier, $3.68 on Plus and $8.25 on Max. Ten script variants cost $27.60, $36.75 or $82.50 respectively, before voice and captions.

Use this route when someone must speak to the camera. A video generation model such as Gemini Omni Flash 1.1 takes image and video references only, with no audio input, so it cannot speak a script you wrote.

Cost by tier

Avatar video is billed per second of output, and a script must come out between 4 and 60 seconds. The job needs a ready avatar, which is created separately from the clip.

What to vary across ten variants

The face is the same in every variant, so the script does the work. Keep each variant to one change.

• Opening line: a problem statement, a number, or a question.
• Proof: a result, a before-and-after, or a plain description of use.
• Call to action: the last three seconds.
• Length: 15 seconds against 10, since a shorter script is also cheaper per variant.

Cost levers

Length is the lever you control. Ten variants at 10 seconds on Standard cost $18.40, against $27.60 at 15 seconds. A tier change is the other: Plus is 1.33x Standard per second and Max is 2.99x.

Pick the tier on a single test clip. Pay for a higher tier only where the difference shows on a phone screen at the size viewers will see.

Be clear with viewers

An avatar is not a customer. Do not write a script that claims the speaker bought and used the product. Write it as a presenter explaining the product, and follow your ad network's rule on synthetic people.

Captions are a separate $0.20 job on video captions. Rates are from the Sume API price card on 2026-10-07, and the avatar docs hold the live request shape.