An AI video generator promises a video in minutes, while a freelancer or an agency asks for $1,500 to $20,000 and one to two months. Each keeps its promise, in different cases: the agency when the film carries your brand for a long time and goes through your sign-off shot by shot, the generator when you need clear videos, often.
You still have to pick the right generator. The term covers four families of tools that make very different things, and only one shows your real product without you editing the video yourself.
Why an agency video cannot keep up with a SaaS
An agency does custom work, and custom work takes time: a script, a storyboard, the animation, then revisions. Expect four to eight weeks for 60 seconds, and from $1,500 with a freelancer to $20,000 at a professional agency.
That pace suits a homepage video. It breaks as soon as you need several: one for the launch, then one per major feature. At a few thousand dollars and six weeks per video, most teams give up, and the feature ships with a line in the changelog.
Doing it yourself does not solve everything. With a template tool, expect 10 to 20 hours of work for a non-designer. Those hours come out of product time, for a result that often looks like the original template. Every way of doing it is laid out side by side in our guide to motion design video for SaaS.
What does “AI video generator” cover?
Under the same name you will find four families of tools. The difference shows from the first video.
Models that invent the image
OpenAI's Sora, Google's Veo, Runway or Kling build a video pixel by pixel from a sentence or an image. They excel at a mood or an illustrative shot. Each generation gives one short shot, to be edited together afterwards. Their limit for a SaaS: they do not know your interface, so they invent one, and on-screen text is unreliable from one shot to the next.
Avatars that present
Synthesia or HeyGen have a synthetic presenter speak in front of slides. It works well for training or a tutorial. Your product only appears through the screenshots you add, and the result looks more like a filmed presentation than a launch video.
Template editors
Canva or Animoto offer animated templates where you swap the text and images. The tool helps, but you are the one editing the video, scene by scene.
Motion design generators
A newer family, which includes Genmotion.design, writes the animation in code from your content: your copy, colors, fonts and site screenshots. Text stays sharp because it is set in real fonts, as on a web page, and the video carries your identity. The trade-off: these tools make motion design, so no filmed people and no realistic sets. Their strengths and limits are covered in our article on AI motion design.
Agency or generator: the comparison
| Option | Price | Timeline | Your product on screen | Revisions |
|---|---|---|---|---|
| Motion design agency | A few thousand dollars, up to $20,000 | 4 to 8 weeks | Yes, from your screenshots | Rounds in the quote, then billed |
| Freelancer | Around $1,500 | Depends on availability | Yes, from your screenshots | Negotiable |
| Model that invents the image | Subscription or credits | A few minutes per shot, then editing | No, the interface is invented | New generation |
| Presenter avatar | Subscription | Time to prepare the slides | Through your screenshots only | You edit the text |
| Template editor | A few dozen dollars a month | 10 to 20 hours of work | Through your screenshots | Yourself |
| Motion design generator (Genmotion.design) | A few dozen to a few hundred dollars | Under an hour | Yes, as your site shows it | New generation |
The line-by-line breakdown is in our article on explainer video cost.
When an agency is still the best choice
Keep the agency for films that must last and carry the whole brand: a two-minute brand film, a video with filmed people, custom-drawn characters, or a campaign where every shot goes through approval.
A good agency also brings an outside view of your message. It will tell you whether your promise lands, and no tool does that work for you.
When a generator does the job better
The generator wins as soon as speed and volume matter: a launch video to ship this week, or several versions of an ad to test before putting budget behind it.
It also fits a young startup's budget: early-stage teams usually spend less than $2,000 per minute of video, below a studio's price.
Many teams combine both: the agency for the homepage film, a generator for everything after.
How to judge an AI video generator before paying
Test it on your own site, and watch the video with these questions in mind:
- Does it show your real product, or an invented interface?
- Is the on-screen text sharp and error-free from start to finish?
- Do you recognize your logo and colors?
- Does the voice-over speak your language, and pronounce your brand name correctly?
- Are you allowed to use the video commercially? Read the terms of use.
- How long did it really take, from link to finished video?
- What happens if the result does not suit you: a free new generation, a paid one, or edits?
Genmotion.design in action
Here is the film Genmotion.design made from its own website. The software read the homepage, wrote the script, generated the English voice-over, added the music and animated each scene in code.
For your site, it works the same way. You paste the address and pick one of five goals: present the product, explain how it works, announce a feature, run a social media ad or convince investors. Then you pick the voice-over language, English or French. The video, about 30 seconds long in 16:9, is ready in under an hour.
Prices range from a few dozen to a few hundred dollars depending on the plan: one video at a time, or a subscription sized to the number of videos. Access opens first to the first 100 early stage sign-ups.
Frequently asked questions
Can an AI video generator replace an agency?
For short, frequent videos, yes: feature announcements and ads. For a long brand film or a live shoot, no. Most SaaS companies need both, at different times.
Can you use an AI-made video in an ad?
It depends on each tool's terms: check that they allow commercial use, and what they say about rights to the music and voice. On Genmotion.design, the videos you generate and unlock belong to you, and the final video comes without a watermark.
Does an AI video generator match my brand identity?
Only if it reads your colors and logo. Models that invent the image get close without matching them exactly; template editors let you set them by hand; Genmotion.design picks them up from your site before animating.
How much does an AI video generator cost?
Template editors cost a few dozen dollars a month. Models that invent the image are paid by subscription or credits. On Genmotion.design, expect a few dozen to a few hundred dollars depending on the plan.
In short
The right choice depends on what the video has to do and how many videos you will need. An agency remains the best option for a film that carries your whole brand. To keep up with a SaaS that keeps shipping, an AI video generator that shows your real site does the job in under an hour instead of several weeks.
Always test a generator on your own site before paying, with the seven questions above.
Your SaaS video, ready in under an hour
Paste your website address: script, voice-over, music and animation are made for you. Access opens first to the first 100 sign-ups.
Join the early stage