The short verdict
- The subscription is the visible cost. It is often not the largest one.
- Edits by prompt, extra services and developer time add up month by month.
- Your own hours are a cost too. Count them.
01Why it looks cheap at the start
Building the first version feels nearly free: a monthly plan and an afternoon. That part really is cheap, and it is why these tools are so useful. The costs arrive later, spread across small bills and lost hours, so they are easy to miss.
02The costs, one by one
The builder plan and credits
Most AI builders charge a monthly plan with a set number of credits or messages. Long edit sessions, where each prompt fixes one thing and breaks another, use them up quickly. Teams often move up a tier just to keep editing the site.
Hosting
Some builders include hosting. Exported projects need their own, on Vercel, Netlify or similar. Free tiers are generous, but commercial use and traffic limits can move you onto a paid plan.
The backend
If forms or features use Supabase or a similar service, that is another account, with a free tier and limits. Pausing on the free tier, or exceeding it, has caught people out.
Add-on services
A form tool, an email sending service, a newsletter platform, a booking widget, analytics with consent, a headless CMS for the blog. Each one is small. Together they can cost more than the builder.
Developer time
For the things the tool cannot do, or broke: a custom domain setup, a redirect, a fix the AI keeps getting wrong, an update to dependencies. Even a few hours a month at freelance rates adds up over a year.
Your time
The founder or marketer prompting changes, checking them on mobile, re-prompting when something regresses. If a text change that should take two minutes takes forty, that is the most expensive line on the list.
03Adding it up
- List every subscription the site depends on, with its monthly cost.
- Check last quarter’s credit usage and any plan upgrades.
- Add up developer invoices related to the site.
- Estimate your own hours per month on site edits, honestly, and put a rate on them.
- Multiply by twelve. Compare that with the yearly cost of a platform built for editing, plus a one-off rebuild spread over two years.
“A site that is cheap to build and expensive to change is not a cheap site.”
04What the alternative costs
A site on a platform like Webflow has running costs too: a site plan for hosting and the CMS, and seats for people who edit. Those are paid to Webflow, and plans change, so check their pricing page. What usually drops away is the patchwork: separate hosting, separate forms, a headless CMS, and most developer hours for routine changes. Whether that adds up to a saving depends on your numbers, which is why it is worth doing the sum.
05Questions people ask
Is an AI builder ever the cheapest option long term?
For a simple site that rarely changes, it can be. The costs grow with how often you edit and how much the site does.
How do I reduce credit usage on edits?
Make small, specific prompts, and edit the code directly for tiny text changes if you can. Better still, keep content that changes often out of code.
What about the cost of a rebuild?
It is a one-off, and our rebuild cost post breaks down what drives it. Spread over two years, it often compares well with the running costs above.
Can you help me compare?
Yes. Send us the link and a rough list of what you pay for, and we will tell you how it compares.
