What is an AI Facebook ad generator?
An AI Facebook ad generator makes an ad for Meta's placements from a description of what you sell; Probably's makes UGC-style video ads, reviewed before you see them.
Meta ads run on Facebook and Instagram, in feeds, Reels and Stories, so one video can serve several placements. Probably's AI creative crew writes the script, casts an actor, films each scene and edits the cut. It makes video only, not static image ads.
It doesn't connect to Meta, build audiences or set a budget. It makes the creative you take there.
Write the brief
Say what you sell and who it's for, and add product photos or a reference video from Reels, TikTok or YouTube.
Choose the format
9:16 for Reels and Stories, 1:1 for feeds, or 16:9 if you need a landscape cut.
The crew makes it
A script, an AI actor and voice, scenes in UGC styles and an edit with captions.
Critics review it
AI critics check the script and the cut against your brief before you see it.
Download and upload
Download the video and add it in Meta Ads Manager. Probably doesn't publish ads.
| Format | Where it fits | Note |
|---|---|---|
| 9:16 | Reels, Stories and Instagram Feed | The usual master for UGC ads. |
| 1:1 | Facebook and Instagram feeds | Square, for placements that don't need full screen. |
| 16:9 | Landscape placements | Less common for UGC; keep it for when you need it. |
| 4:5 | Facebook Feed, per Meta's guide | Not made by Probably. Crop a 9:16 or 1:1 video, or check Meta's current spec. |
Finished videos are 720p or 1080p. Placement limits differ by objective and change over time, so check the video ad specs guide, which links Meta's own pages, before you launch.
Frame for 9:16 with the actor and product centred, so a crop keeps what matters.
A hook in the first seconds, since people decide before they hear a word; see the hook guide.
Captions, because many people watch with the sound off (captions).
A person, not a pack shot: a creator style that feels native to Reels.
More than one version. Make variants with different hooks and test them; see how to test UGC ad creatives.
To see ads already running on Meta before you brief, search Meta's Ad Library, then paste one into Probably as a reference and name what to borrow.
Does Meta need AI ads to be labelled?
Probably's actors and voices are made with AI. Meta and the law may ask you to label AI-generated content, and the rules change, so read Meta's current policy before you run an ad. Our AI content policy says what Probably expects of you.
How much does an AI Facebook ad cost?
Your first draft is free with a new account: 480p, up to 30 seconds, no credit card. After that, plans give you monthly credits. This is the cost of making the video, not Meta's ad spend.
Starter
Price: $19/mo
- Credits each month
- 2,000
- Finished 15 s ads a month
- About 2
- Videos at once
- 2
Creator
Price: $49/mo
- Credits each month
- 5,500
- Finished 15 s ads a month
- About 7
- Videos at once
- 5
Studio
Price: $149/mo
- Credits each month
- 17,000
- Finished 15 s ads a month
- About 21
- Videos at once
- 10
One credit is $0.01 of work, and you see an estimate before paid work starts. See pricing.
See what the studio makes
The ad examples are illustrations of the styles, not customer ads. For another channel, see the AI TikTok ad generator.
Frequently asked questions
Is there a free AI Facebook ad generator?
Probably's first draft is free with a new account: a 480p video ad up to 30 seconds, within 30 days of sign-up, with no credit card. Finished videos are 720p or 1080p and use credits; see pricing.
Does it make Instagram and Reels ads too?
Yes. Make a 9:16 video for Reels and Stories or a 1:1 video for feeds, and upload it to Meta Ads Manager, which runs it on Facebook and Instagram placements you choose.
Does Probably make static image ads?
No. Probably makes video ads only, in 9:16, 1:1 or 16:9.
Does Probably make 4:5 videos for the Facebook feed?
No. Make 9:16 or 1:1 and crop to 4:5 if you want that shape, and check Meta's current spec in the video ad specs guide.
Does Probably publish to Meta for me?
No. You download the finished video and upload it to your Meta ad account. Probably has no connection to it.
What is the best AI Facebook ad generator?
It depends on the ad. For UGC-style videos you steer in a chat and that are reviewed before you see them, try Probably; to weigh it against named tools, see the comparisons.
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