Guide

How to Make a Video Ad With AI: 7 Steps From Brief to MP4

To make a video ad with AI, write a short brief that names the viewer, the product, the one benefit and the call to action, then pick the shape and length for the platform where the ad will run. Generate two or three versions with different openings, check the script and the on-screen text, and export an MP4 to upload to your ad account.

Checked October 2026. Sources are listed at the end of the page.

An AI video tool can turn a few lines of text into a finished ad: scenes, on-screen words, a voiceover and music. What it cannot do is decide what the ad should say. The ads that work still start with a clear offer, a strong first few seconds and the right shape for the placement. This guide gives the steps that work in any AI video tool, then shows how to do the same job in Infinall AI, where Motion is open on the Free plan and the full Video composer, with ad formats and several versions at once, is part of Pro.

Two ways to make a video ad in Infinall AI
MotionVideo
PlanFree and ProPro only
What it makesAnimated ad: moving text, logos and scenesAd from a brief in a chosen format, such as short-ad, story-ad, retargeting, hook, ugc or avatar
Length10 to 60 seconds when you pick it1 to 180 seconds
ShapePicked in the Motion boxAuto, 9:16, 16:9, 1:1, 4:5, 2:1 or Custom, or a platform preset
VersionsOne video per prompt1 to 20 versions at once
Your filesNo attach button: logo, colours and words come from your brand and promptUp to 10 files per video, each up to 100 MB
PriceUsage based, with an estimate in the quality menuExact price on a price card before Approve & render
DownloadExport MP4, freeOne MP4 per video, free

How to Make a Video Ad With AI: 7 Steps From Brief to MP4

  1. Decide the goal, the viewer and the offer

    Write down who the ad is for, what you want them to do and why they should do it now. A cold audience needs to learn what the product is. People who already visited your site need a reason to come back, such as an offer or an answer to an objection. One ad should carry one message.

  2. Pick the platform, shape and length first

    Vertical 9:16 suits Reels, Stories, Shorts and TikTok, 4:5 or 1:1 suits feeds, and 16:9 suits YouTube and the web. Choose the shape before you generate, because cropping a finished ad into another shape often cuts off the product or the text. Short ads of around 15 seconds are a common starting point for social feeds.

  3. Write a brief the AI can follow

    Describe the scenes in order, the exact words you want on screen and the call to action at the end. Name the product, the benefit and the tone, for example calm, playful or premium. Vague prompts get generic footage, so give the AI the facts it cannot guess, such as your price or your offer.

  4. Open with a hook

    The first few seconds decide whether people keep watching. Start with the problem, the result or a surprising visual, not your logo or a slow intro. Put the key line on screen as text so the ad still works with the sound off.

  5. Generate two or three versions

    Make versions that change one thing, such as the opening line, the visual style or the offer. That gives you something to test in your ad account instead of guessing. Keep the rest of the ad the same so you can tell what made the difference.

  6. Check the script, text and brand

    Read every spoken line and every word on screen. AI tools can misspell product names, invent claims or drift from your colours. Fix anything that is not true or not on brand before you export, and check the ad against the ad policies of the platform you will use.

  7. Export an MP4 and test it on a phone

    Export the finished ad as an MP4, a file type ad platforms such as TikTok and LinkedIn list in their video ad specs, and watch the file itself on a phone. Check that the text is readable, the product is in frame and the call to action is clear. Then upload it to your ad account and run the versions side by side.

How to make a video ad in Infinall AI

First add your brand from your website address, so your logo, colours and voice are saved once and used in every ad.

With Video (Pro): on Home, choose the Video tab and type your brief, 5 to 5000 characters, saying who it is for, what it shows and what it should say. Press Video format and pick an ad format: short-ad for punchy product footage with room for text, story-ad for a vertical story that follows one person, retargeting to lead with your offer, hook for a single 3 to 5 second opening, or comparison. Use the plus button to attach product photos and pick a Platform preset: Meta Feed is 4:5 and 15 seconds, TikTok is 9:16 and 15 seconds, LinkedIn is 16:9 and 30 seconds. Under Video quality and outputs, pick more than one output to get an A/B set. Press Create video, read the price card, then press Approve & render. Choose Storyboard instead of Generate if you want to read and edit the spoken lines before you see the price.

With Motion (Free and Pro): describe the scenes, the words on screen and the timing, pick your brand, a shape, a length and a quality level, then press Generate motion video. Motion is silent unless your prompt asks for a voiceover or music. When the card says Video ready, press Export MP4.

Common mistakes

  • Opening with a logo or a slow intro instead of the hook.
  • Writing a vague prompt and accepting generic footage that could be anyone's ad.
  • Making one version only, so there is nothing to test.
  • Generating in one shape and cropping to another later.
  • Relying on the voiceover, so the ad makes no sense with the sound off.
  • Shipping claims, prices or product names the AI got wrong because nobody read the script.

After the ad is made

Infinall AI does not buy media for you. You upload the MP4 to your own ad account, or add it to the calendar in the Social Hub and publish it as a post. Once a post is published, Boost post can turn it into a paid ad from a connected ad account, with a goal, a daily budget and 1 to 90 days. The ad platform charges the budget to your ad account, and a live boost uses 2 credits a month. Connecting ad accounts is a Pro feature.

If you want ideas first, Ad Spy shows the ads a brand is running, so you can see which openings and offers competitors use before you write your own brief.

Free vs Pro for video ads

The Free plan gives 1,000 credits every month with no card, and Motion is open on it, so you can make animated ads with moving text, your logo and a voiceover for free credits. Pro costs $10 for the first month, then $30 a month or $299 a year (in India, Rs 999 for the first month, then Rs 2,899 a month or Rs 33,999 a year), and gives 3,000 credits a month. Pro adds the Video composer with its ad formats, attached product files, avatars, platform presets and up to 20 versions at once. One credit is one US cent, and downloading a finished video never uses credits.

If you already have good footage and a video editor you like, editing your own clips may be quicker and cheaper. AI helps most when you need the footage, the script and several versions made for you.

Frequently asked questions

Can I make a video ad with AI for free?

Yes. Infinall AI's Free plan includes Motion, which makes animated videos of 10 to 60 seconds from a prompt, with 1,000 credits every month and no card. The Video composer, with ad formats and several versions at once, is part of Pro.

How long should a video ad be?

Short is usually better for social feeds. In Infinall AI the platform presets suggest 15 seconds for Meta Feed, Meta Stories and TikTok, 30 seconds for LinkedIn and YouTube Shorts, and 60 seconds for YouTube Standard.

How do I make a video with AI from my own product photos?

In the Infinall AI Video composer, press the plus button, choose Add photos & files and set each image's role to product_visual. The slideshow format puts your own images in sequence with motion. You must tick the rights and consent box before you can send.

Will Infinall AI run the ad for me?

No. It makes the ad and can publish it as a post or boost a published post from your own connected ad account. It does not buy media for you, and ad spend is charged by the ad platform.

Sources and checks

Every price, rating and number on this page comes from the source pages below, checked October 2026. Prices and plans change often, so confirm on the vendor's own page before you buy.

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