Create a video ad with AI

You want a video ad for your product, but you have no camera, no actor and no €3,000 agency budget. That's exactly the gap generative AI tools have been filling for the past two years: from a simple piece of text, you get video shots, a voice-over, music and an edit that's ready to run on Instagram, TikTok or YouTube. There's nothing magical about the result and it won't replace a good idea, but it does let you test ten hooks in an afternoon instead of one a month.

This guide gives you three concrete methods, from the simplest to the most hands-on, with the timings, the formats and the real budget for each one. You'll also see how to write the script, because that's where most of an ad's performance is decided — far more than in pixel quality. No technical skill required: if you can write a message and click a button, you can do this.

How AI actually builds a video ad

An AI-generated video ad is built from four blocks: the script, the animated shots, the voice-over and the final edit. Each block matches a type of tool, and once you understand that breakdown you stop hunting for the magic button that doesn't exist.

The first block is text. A language model (an AI that writes, like ChatGPT or Claude) turns your product description into a 15- or 30-second script, broken down shot by shot.

The second block is visual. Video models like Veo, Kling, Runway or Sora generate 5- to 10-second clips from a sentence of description, called a prompt. You don't make a 30-second ad in one single block: you generate 4 to 6 short clips and then assemble them. That's the principle we explain in detail in our article on generating a video from text.

The third block is sound: a synthetic voice-over reads your script with natural intonation in a matter of seconds, and a music AI produces a royalty-free backing track.

The fourth block is the edit: you drop the clips in order, lay in the voice, the music and the subtitles, then export in the right format.

Budget 45 minutes to 2 hours for your first complete ad, then 20 to 30 minutes once you've got the method down. The real win isn't the speed of a single spot: it's being able to produce five variants and test which one converts.

Method 1: create your video ad in Skilzy's AI Lab

This is the most direct route for a beginner: one account, one subscription, and all the video, voice and music tools already wired up in the same place. The main obstacle when you're starting out isn't technical difficulty, it's the stacking: one subscription for video generation, another for voice, a third for music, and €80 a month gone before you've published anything at all.

Skilzy brings together the two missing pieces: the training that tells you what to do, and the built-in AI Lab where you use the real tools with credits included. The program dedicated to creating video ads with AI walks you through producing a complete spot from script to export, with the prompts already written for you to adapt to your product.

A typical run looks like this:

1. You describe your product, your audience and your offer in the Lab.
2. You generate three different script angles and keep the clearest one.
3. You generate the shots one by one, rewriting any prompt that doesn't deliver.
4. You add the voice-over and the music.
5. You export in 9:16 for Reels and TikTok, then in 1:1 or 16:9 for everything else.

On budget, access starts at €29.90 a month, no commitment. To look before you pay, the discovery demo gives you 7 days with 1 image, 1 video, 1 music track and 10 messages, no credit card: enough to understand the mechanics and check that the output works for you.

Two state-recognized certifications round out the setup, including the RS7439 certification in AI content marketing registered with France Compétences, which is useful if you want your upskilling funded.

Method 2: assemble the specialist tools yourself

You can absolutely do everything by hand by subscribing to the tools directly, as long as you accept that you're your own project manager. This method gives you maximum control over quality, and it's the one used by creators who produce ads at scale.

The most common combination in 2026:

Things to watch out for. First, consistency: from one clip to the next, the same character changes face and the same product changes label. The workaround is to start from a fixed reference image and then animate it, rather than generating each shot from scratch.

Next, commercial rights. Not every subscription allows advertising use, especially the free tiers, which often add a watermark. Check the terms of use before you launch a paid campaign.

Finally, the real cost. A failed generation burns credits anyway, and you should budget three to five attempts per shot at the beginning. That's the expense beginners systematically underestimate.

If your target format is a talking-head testimonial rather than a cinematic spot, take a look at UGC video created with AI instead — it uses talking avatars and often costs less in credits.

Method 3: shoot on your smartphone and let AI finish the job

The hybrid method gives the best results on physical products: you shoot 30 seconds of real footage with your phone, and AI handles everything else. The shooting side is free, and it solves the credibility problem in one move, since your product actually appears as it really is.

In practice:

• Shoot 5 to 8 short shots in 9:16, in daylight, near a window: the product in your hand, the unboxing, real-world use, a close-up on a detail.
• Import everything into an editor, then let AI generate the automatic subtitles, cut the silences and propose a first assembly.
• Add a synthetic voice-over if you don't like your own voice, or record it yourself.
• Fill in with one or two AI-generated shots for the settings you can't film: a beach, a New York office, an aerial view.

This approach demands real attention to sound. A phone's built-in mic is fine under a meter, and catastrophic at three meters in a room that echoes. If you're speaking on camera, get closer or use a €20 lavalier mic. For the assembly side, our guide to video editing with AI details what these automatic features handle well, and where they still fall down.

The script, the formats and the mistakes that sink your results

A video ad that works follows a four-block structure: hook, problem, proof, action. Here's the template to copy for a 20- to 30-second spot.

Block 1, the first 3 seconds. A line or an image that stops the thumb. No logo, no introduction. Example: „Your coffee goes cold in 8 minutes."

Block 2, seconds 3 to 10. You name the concrete frustration, using words your customer would actually use.

Block 3, seconds 10 to 22. You show the product in action and you give proof: a number, a before/after, a review.

Block 4, the last 5 seconds. One single action requested, shown on screen and spoken out loud.

On formats, the standard durations are still 6 seconds for a non-skippable bumper, plus 15 seconds and 30 seconds for social. The official Google Ads video format documentation covers the specific constraints for YouTube. Export at 1080 x 1920 pixels for vertical formats, in H.264, and always plan a version with burned-in subtitles: most mobile views happen with the sound off.

The most common beginner mistakes: generating a 30-second spot in one block instead of six short clips; putting the logo at the top; stacking spectacular shots without ever showing the product; producing only one version, which makes it impossible to know which hook works. Make three, run them on a small daily budget, and keep the one that performs.

What to remember

An AI video ad comes down to four blocks and a solid script. Start with method 1 if you want a framework and a single subscription, move to method 2 when you're producing at volume, and keep method 3 in your pocket whenever your product is physical. In every case, the first version is never the right one: you learn fastest by publishing three variants and watching the numbers. Once your spot is ready, think about automating its publication on social media too, so you don't lose the time you just saved.