Meta ads video creatives with AI for Facebook and Instagram
How to build Facebook and Instagram video ads with AI: which aspect ratios to export, hooks, captions, placements, testing and a full ad brief.
The short answer
For Meta ads, make each video in two shapes: 9:16 vertical for Reels and Stories, and 4:5 or 1:1 for Feed. Open with the product or the problem in the first second, add captions, and keep text away from the edges where Meta's interface sits.
AI video helps you make enough variants to test. Meta's delivery system works better when it has several creatives to choose from, so a set of hooks and formats usually beats one perfect ad.
Placements and shapes
Meta ads can show in Facebook Feed, Instagram Feed, Reels, Stories and other placements. Each has its own best shape.
- Reels and Stories: 9:16 vertical, 1080x1920.
- Feed: 4:5 vertical or 1:1 square. 4:5 takes more screen on a phone.
- Right column and some other placements: square or landscape may be used.
Meta can auto-crop one video for several placements, but auto-crops can cut off products and text. Exporting a native 9:16 and a native 4:5 version gives you control. Meta's ads guide lists current recommended ratios, lengths and safe zones per placement; check it before a big export.
Plan for the crop when you generate
If you generate in 9:16 and plan a 4:5 cut, keep the important content in the center. A 4:5 crop from a 9:16 frame removes a band from the top and bottom. Prompt for it: ask for the product centered with extra space above and below.
Sample prompt: "Vertical 9:16, a reusable glass water bottle on a gym bench, bright natural light, product centered with clear space above and below, slow push in, shallow depth of field."
Try this prompt in Create VideoThis one render gives you a 9:16 Reels ad and a clean 4:5 crop for Feed.
Structure of an ad that holds attention
- Hook (first 1-3 s): the product in action, a surprising visual or a sharp line of text.
- Problem or desire: show the moment the viewer recognizes.
- Product as the answer: show it working, not a feature list.
- Proof you can stand behind: a real feature, a guarantee you offer, a demo. Do not invent reviews or quotes.
- Call to action: one action, said on screen and in the ad's button.
Add burned-in captions. Many people watch Feed with sound off. Keep captions to a few words per line and place them in the center area, not at the bottom edge.
An ad brief for a candle brand
Copy this brief and swap in your product.
- Product: soy candle in a ceramic jar, three scents.
- Audience: people decorating a small apartment.
- Offer: bundle of three.
- Hooks to test: (1) a match strikes in a dark room, text "The cheapest room makeover"; (2) a cluttered shelf becomes a styled shelf, text "Your shelf is missing one thing"; (3) three jars lined up, text "Pick your scent".
- Body: candle lit on a coffee table, slow orbit, warm evening light; a hand sets the jar on a bookshelf; close-up of the flame.
- End card: three jars centered, text "Bundle of three".
- Shapes: 9:16 for Reels and Stories, 4:5 for Feed.
- Captions: burned in, center area.
- Disclosure: if the scene looks like a real home, use Meta's AI disclosure when required.
That is three hooks across two shapes, so six ads from one shoot. In ClickPop, Ad Studio generates ad variants and hooks for testing, and if you want the same presenter in every ad, design a fictional character once in Characters so the face and outfit stay the same.
Testing on Meta
Put your variants in one ad set and let Meta's delivery system spread spend. Look at cost per result over several days, then turn off the clear losers and add new variants of the winner. Change one element at a time when you want to learn: the hook, the first shot, the offer or the format.
Watch for creative fatigue. When cost per result climbs on an ad that used to work, it is time for fresh hooks, not a bigger budget.
A useful rhythm is to plan new creative before you need it. Keep a small queue of tested hook ideas and untested bodies so that when a winner fades, a replacement is ready to launch the same day.
Budget the creative, not only the media
Small advertisers often spend carefully on media and then run one video for months. Set a creative budget too: a fixed number of new variants each week or month.
With AI video the cost of a variant is mostly credits and your editing time. In ClickPop the price of each clip shows before you generate, and failed renders are refunded, so you can plan a monthly batch. For example, if a 10-second 720p clip on Auto costs about 72 credits, six new 10-second variants cost about 432 credits. Draft on a cheap model, then re-render only the winner on a higher-quality model if you need it.
Mistakes to avoid
- One file for all placements, auto-cropped with the product cut in half.
- Fake testimonials or invented star ratings. These mislead buyers and break ad policies.
- Health, weight loss or body claims, which Meta restricts.
- Using a real person's face or another brand's logo.
- Text right at the edges where the interface covers it.
- Judging a test after one day.
Questions
What aspect ratio should Meta video ads be?
9:16 for Reels and Stories, 4:5 or 1:1 for Feed. Check Meta's ads guide for current recommendations per placement.
Can I run AI-generated video ads on Facebook and Instagram?
Yes, if they follow Meta's ad policies. Avoid real people's likeness without permission and disclose AI content where Meta requires it.
How many creatives should I test on Meta?
Several is better than one. Start with three hooks in two shapes, then replace losers with new variants of the winner.
Do Meta ads need captions?
Captions are strongly recommended because many people watch Feed with sound off. Burn them in, centered, a few words per line.