AI B-roll for video ads
Generated B-roll is the best use of AI video in an ad: nobody scrutinises a 1.5 second establishing shot. Genyad generates clips from text or an image at 2 credits per second and indexes them next to your real footage so they compete for slots like anything else.
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How to do it in Genyad
- Identify the gap. It is usually an establishing shot, a texture, an ambience beat or a transition.
- Generate 1.5 to 3 seconds with a simple prompt. Complexity is what breaks.
- Let it index into the library.
- Brief normally. The clip gets used where it fits rather than being forced in.
- Reuse it across campaigns, since the cost was paid once.
What good looks like
- Short. Under 3 seconds is where generated footage is indistinguishable in a feed.
- Peripheral. Landscapes, textures, abstract motion, empty rooms, weather.
- Consistent with the real footage's grade, or close enough that a viewer does not register the cut.
- Never carrying the claim. B-roll supports the argument, it does not make it.
Mistakes that cost you the test
- Generating the product. Use image to video from a real photo instead, so the product is right.
- Generating people. Faces and hands are where the eye goes and where the artefacts are.
- Long generated sequences. Cost climbs at 2 credits per second and quality drifts.
Frequently asked questions
What is AI B-roll good for?
Establishing shots, textures, ambience and transitions, in clips under about 3 seconds. It is poor at products, hands and faces.
How much does generated B-roll cost?
2 credits per second, so a 2 second cutaway is 4 credits against 1 credit for a whole variation assembled from your own footage.
Does generated B-roll hurt performance?
Not when it is peripheral and short. Ads built mostly of generated footage do tend to underperform ads that show the real product.
Can I reuse the same B-roll across campaigns?
Yes. It is a library clip like any other once generated.