Key takeaways
- A 30 second ad script should be under 80 words to leave room for pacing and pauses.
- You do not need to film anything: AI tools can generate voice, visuals and captions from text alone.
- Doing the steps in the right order (script, voice, visuals, edit) saves the most time.
- Spending around $20 to $40 a month on two or three tools is usually enough for a beginner.
Quick answer
To make an AI video ad in under an hour, you write a tight 30 second script, generate a voiceover and visuals with AI tools, then assemble everything in a simple video editor. Most beginners use ChatGPT for the script, ElevenLabs or Google's text to speech for voice, and a tool like Canva, CapCut or Runway for the clips. The whole process takes 45 to 60 minutes once you know the order to do things in.
How to make an AI video ad: the basic workflow
Making an AI video ad is really four small jobs done in order: write, speak, show, assemble. Skipping ahead, like jumping to visuals before you have a script, is the main reason people get stuck for hours.
Here is the full workflow broken into steps you can follow today, even with zero video experience.
- Write the script. Open ChatGPT or a similar chatbot and ask it to write a 30 second ad script for your product, aiming for 70 to 80 words.
- Record or generate the voice. Paste the script into ElevenLabs or a similar text to speech tool and pick a natural sounding voice.
- Generate or source visuals. Use Canva's AI video tools, CapCut templates, or an AI video generator like Runway to create clips that match each line of the script.
- Add captions. Most editors, including CapCut, can auto generate captions from your voiceover in one click.
- Assemble and export. Drop the voice, visuals and captions into a timeline, trim to exactly 30 seconds, and export in 1080p.
Writing a script that actually sells in 30 seconds
A good 30 second ad script has four parts: a hook, a problem, a solution and a call to action. Each part gets roughly one sentence.
Ask ChatGPT something like: 'Write a 30 second video ad script for [product], aimed at [audience], with a hook in the first line and a clear call to action at the end.' Then edit it yourself so it sounds like a real person, not a brochure.
Keep sentences short. Long sentences are harder for AI voices to read naturally and harder for viewers to follow on a small phone screen.
Which AI tools do you actually need?
You do not need a dozen subscriptions. Three tools cover most of the workflow for a beginner, and all of them have free or low cost tiers at the time of writing.
| Job | Tool examples | Typical cost |
|---|---|---|
| Script | ChatGPT, Google Gemini | Free to around $20 a month |
| Voiceover | ElevenLabs, Google text to speech | Free tier, paid plans around $5 to $22 a month |
| Visuals and editing | Canva, CapCut, Runway | Free to around $12 to $30 a month |
Start with free tiers. Only upgrade once you know which tool you will actually keep using every week.
How do you turn the script and voice into visuals?
Once you have a voiceover file, break your script into three or four beats, roughly one visual per sentence. This keeps the ad moving and stops any single shot from dragging.
In Canva or CapCut, search their template library for '30 second ad' or 'product promo' and swap in your own text, colors and any product photos you have. If you want fully generated video rather than templates, a tool like Runway can turn short text prompts into short video clips you can stitch together.
For most beginners, templates are faster and look more polished than fully AI generated footage, at least for a first attempt.
Putting it all together: the final edit
With your voice, visuals and captions ready, the last step is assembly. CapCut and Canva both let you drag these onto a single timeline.
- Add the voiceover track first. This sets the total length of your ad.
- Layer visuals underneath, trimming each clip so it changes roughly every 3 to 5 seconds.
- Turn on auto captions, then check them for typos, since AI captioning tools sometimes mishear brand names.
- Add a simple end screen with your call to action, like 'Shop now' or 'Learn more', held for at least 2 seconds.
- Export in 1080p and check how it looks on a phone screen before you post it anywhere.
FAQ
Can I really make an AI video ad for free?
Yes, for a first attempt. ChatGPT, Canva and CapCut all have free tiers that can take you from script to finished ad, though you may hit limits on voice minutes or watermarks that push you toward a paid plan later.
How long should an AI video ad be?
30 seconds is the standard length for most social and search video ad placements. Some platforms also support 15 second versions, which work well as a shorter cut of the same script.
Do I need any filming equipment?
No. The whole point of this workflow is generating voice and visuals with AI tools, so you can make a complete ad using just a laptop or phone and no camera or microphone.
Which AI voice sounds the most natural?
ElevenLabs is widely used for natural sounding AI voiceovers, with a range of accents and tones. Google's text to speech tools are a decent free alternative if you are just testing the workflow.
How much should a beginner budget for tools each month?
Around $20 to $40 a month is usually enough to cover a script tool, a voice tool and an editing tool at the time of writing, assuming you stick to one or two paid subscriptions.