AI video generators for business: how to choose and test them
Kahu team·Updated 1 Oct 2026·7 min read
AI video tools fall into three groups: generators that create footage from a prompt, editors that cut and caption your own clips, and avatar tools that turn a script into a presenter video. Most small businesses get the most value from editors that speed up real footage. Test any tool on one short ad or reel before paying for a year.
Three kinds of tool
| Type | Good for | Examples |
|---|---|---|
| Prompt-to-video | Short b-roll, concepts, backgrounds | Veo, Sora, Runway |
| AI editors | Cutting, captions, reframing your own clips | CapCut, Descript |
| Avatar presenters | Training and explainers | Synthesia, HeyGen |
How to choose
- If you have phone footage of your work, start with an editor. Real footage builds trust.
- If you need short visuals you cannot film, try a generator for b-roll.
- If you need the same explainer in several languages, avatar tools save studio time.
- Check export length, resolution, watermark rules and commercial use terms on each plan.
A one-week test
- 1Pick one assetA 15-second reel or a 30-second ad.
- 2Make it in two toolsSame script, same footage where possible.
- 3Time the whole jobIncluding fixing anything odd the AI produced.
- 4Run both versionsCompare views, watch time and enquiries.
Frequently asked questions
Can AI video replace filming?
For some b-roll and explainers. For showing your actual work, people and place, real footage still performs better.
Do I need to label AI video?
Some platforms require disclosure for realistic AI content. Check each platform’s rules.
What does AI video cost?
Most tools have monthly plans with credit limits. Heavy generation uses credits quickly, so watch usage in the first month.

