By PixelloAI Team · 24 September 2026

A short video ad has a predictable structure regardless of platform: a hook in the first second or two, a clear look at the product, one concrete benefit, and a call to action at the end. If you keep that shape in mind, an AI video tool can handle most of the production.

Start from the brief, not the prompt. Decide what you are advertising, who it is for, which platform it is going on, and what you want the viewer to do. PixelloAI's Ad Creator turns those answers into a structured prompt (hook, product introduction, visual action, camera movement, benefit, brand moment, CTA) so you are not staring at an empty text box trying to describe a whole ad at once.

Match the format to the placement before you generate. A feed ad is usually square or 4:5, a Reel or Short is 9:16, and a pre-roll ad is 16:9 — generating in the wrong shape means re-cropping later and losing framing. Platform presets set aspect ratio, duration, and pacing for you.

Prefer post-production text over asking the model to render on-screen words. AI video models are still unreliable at spelling and legibility, so add your headline, price, and CTA as a text overlay after generating rather than putting them in the prompt.

Finally, be honest about what the footage is. Do not present AI-generated video as real customer footage or a real demo — label it where the platform expects it, and use it for stylised or conceptual shots rather than claims that need to be literally true.

For feed and Stories placements, six to fifteen seconds is a strong starting length: long enough for one idea and a call to action, short enough that people see the end. Two generated scenes plus an end screen gives you that shape without stretching the model.

• A visual hook in the first second

• One clear benefit, shown rather than listed

• Your logo and a single call to action on the end screen

• Captions so the ad works with the sound off

Make three versions that change only the opening scene, run them with the same small budget, and keep the one with the best view-through rate. Because each AI clip costs credits rather than a shoot day, testing several hooks is realistic even for a small account.