In short — To generate an ad with AI, start from your product page or photo, choose one angle and a framework (AIDA or PAS), let the tool write the copy or script, generate the visuals from your real product, export in each placement's format (9:16 for TikTok and Reels, 1:1 or 4:5 for feeds), check every claim and the product on screen, then test several versions. Static image ads, ad copy and video ads use different tools; for video, a three-clip ad with voiceover and music costs roughly $5 to $149 in generation, depending on the model and resolution.
Disclosure: Klaivo, which publishes this blog, generates video ads. This guide covers static and video ads and names other tools where they fit better.
What "generating an ad with AI" covers
Three different jobs hide behind the phrase:
- Ad copy: headlines, primary text, hooks. Any general AI assistant can draft it; the work is in choosing the angle.
- Static image ads: a product visual with a headline and a call to action, resized for each placement.
- Video ads: a short vertical ad with a hook, clips, a voiceover, music and an edit. This is where AI saves the most time, because it replaces a shoot.
The three kinds of AI ad tools
| Kind | What it does | Examples | Best for |
|---|---|---|---|
| Static ad generators | Image ads with layouts, brand kits and resizing | AdCreative.ai, Canva | Display and social statics |
| Video ad generators | Script, clips, voiceover, music and edit in one flow | Klaivo, Creatify, Arcads | TikTok, Reels and Meta video ads |
| Raw video models | One clip from a prompt or an image, nothing around it | Veo 3.1, Kling 3.0, Seedance 2.0 | Teams that write, voice and edit themselves |
A raw model is the cheapest per clip and the most work per ad. A video ad generator costs a subscription and gives you a finished ad. If your format is video, compare tools on the cost of a publishable ad, not of a clip: see the best AI video ad generators compared.
How to generate an ad with AI, step by step
1. Start from the product, not from a prompt
Give the tool your product page or a clean product photo. The page provides the facts (benefits, price, offer); the photo keeps the product on screen accurate. Starting from a blank prompt is how AI ads end up generic.
2. Pick one angle and one framework
One ad, one idea. Use PAS (problem, agitation, solution) when your customer already feels a pain you can name, and AIDA (attention, interest, desire, action) when you build desire by showing the outcome. The four beats of a video ad and the word counts that fit each clip are in the video ad structure that sells.
3. Generate the copy or the script
For video, keep it short: 8 to 12 spoken words per 5-second clip, the hook in the first 2 seconds. For statics, one headline and one benefit. Keep only claims your product page supports.
4. Generate the visuals from your real product
Image-to-video (or image-to-image for statics) starts from your photo, so the label and shape on screen are the ones you ship. Text-to-video invents a lookalike, which breaks trust at the exact moment you ask for the sale. See why image-to-video wins for product ads.
5. Assemble and export for each placement
- 9:16 for TikTok, Reels and Stories.
- 1:1 or 4:5 for feeds.
- 16:9 for YouTube.
For video, add the voiceover and music, and captions if your tool doesn't add them.
6. Review before you spend
Check three things on every ad: every claim is true and allowed in your category, the product on screen is yours, and any text inside the image or video is readable and spelled right (AI still distorts small text, such as labels). Platform ad policies apply to AI ads like any other, and TikTok and Meta both have AI-content labelling rules.
7. Test several versions and keep the winners
Generate 3 to 5 versions that differ by one thing (the hook, the angle or the offer). TikTok recommends 3 to 5 creatives per ad group. Keep what beats your current ads and refresh when results decline: see how many ad creatives you need.
What it costs
- Copy: close to free with a general AI assistant.
- Static ads: a static generator subscription; AdCreative.ai starts at $39 a month billed monthly.
- Video ads: in generation alone, a publishable three-clip vertical ad with voiceover and music costs roughly $5 to $149, depending on the model. Video ad generators start around $18 a month. The model-by-model breakdown is in what an AI video ad really costs.
The bigger saving is time: an AI-generated ad replaces a brief, a shoot and an edit, which is what makes testing ten versions realistic.
What AI still gets wrong
- Small text: labels and packaging text can come out distorted. Check every clip and regenerate the ones that fail.
- Invented facts: a tool that writes freely can add benefits your product doesn't have. Give it your product page and remove anything you can't prove.
- Generic angles: without a clear audience and offer, AI writes ads that could be for anyone.
- Lip sync with a voiceover: if a generated person speaks over a separate voiceover, the mouth won't match. Use silent motion with the voiceover, or a model with native audio.
Generating a video ad with Klaivo
Paste a product link into Klaivo's AI ad generator: it reads the page, gives you a product sheet and a clip-by-clip script you can edit, then generates each clip from the product photo and adds the voiceover, music and edit, in 9:16, 1:1 or 16:9 depending on the model. The credit cost is shown before each generation. New accounts get 3 free product-page analyses with no card; the video needs credits (a 7-day free trial with 32 credits, card required, then from $29 a month). Klaivo makes video ads only: for static banners, use a static generator.
FAQ
Can AI generate ads for free?
Copy, yes, with a general AI assistant. For image and video ads, most tools have a limited free plan, often watermarked; we checked which ones in free AI UGC video generators.
Are AI-generated ads allowed on Facebook and TikTok?
Yes, within each platform's advertising policies, which apply to AI ads like any other. TikTok and Meta also have AI-content labelling policies; check the current rules for your countries.
What is the best AI tool to generate ads?
It depends on the format: a static generator such as AdCreative.ai or Canva for image ads, a video ad generator such as Klaivo, Creatify or Arcads for video ads, and a raw model such as Veo 3.1 or Kling 3.0 if you write, voice and edit yourself.
How long does it take to generate an ad with AI?
Writing and reviewing the script takes minutes; generation time depends on the tool and the model. The part that saves the most time is skipping the shoot and the edit.