How to build a website with AI: what to write so it turns out the way you want
For an AI-built website to turn out the way you want, write concrete details—prices, hours, address—in a running paragraph, as if you were explaining it to someone over the phone, instead of asking for adjectives like "modern" or "professional."
Two people with the same kind of business can build a website with AI on the same afternoon and end up with very different results. One ends up with a pretty page that could belong to anyone. The other ends up with theirs: their prices, their hours, their street, their WhatsApp button.
The tool was the same. What changed was the text they wrote. Because building a website with AI is exactly that: describing your business in words to a tool that puts the site together from what you tell it.
And almost nobody talks about that part. They’ll show you where to click, but not what to say. Here’s what actually works.
What information should your business website include?
The same stuff you already give fifteen times a day over WhatsApp: how much it costs, what time you open, where you are, whether you deliver, and whether you take cards. Those five questions, answered with real numbers, are basically your whole page.
Don’t start from a blank page. Open your WhatsApp, scroll through the last week of conversations, and notice what people ask you over and over. That’s not “company information” — it’s exactly what people want to know before they decide.
If you’re answering “what time do you close?” fifteen times a day, that answer deserves to be right at the top, in big letters. Your page doesn’t have to impress anyone — it has to stop you from answering the same question all day.
How do you keep your website from looking generic?
By writing facts instead of adjectives. When you ask for “something modern, elegant and professional,” you’re asking for the same thing everyone else asks for, which is exactly why you get the same thing everyone else gets. No adjective sets your business apart from the one across the street.
Compare:
- ❌ “A modern, eye-catching website for my laundromat that looks professional.”
- ✅ “Laundromat. Wash by the kilo at 22 pesos, 3-kilo minimum, same-day pickup if dropped off before 11am. Free pickup and delivery within a 3 km radius.”
The first one can be filled in with any template. The second one only you could have written, and it’s the one that answers what the customer is actually looking for on their phone at 8pm.
There’s a tell that shows up fast: when all you give it is adjectives, what comes back gets filled with whatever sounds good for “a business” — a stock photo of an office with people in suits, some “quality and service” copy, and zero actual details about you. None of that sells a comforter wash.
Prices feel scary to put in writing, and they’re the first thing people look for. Put them in. If they vary, just say so: “starting at $180, depending on size.”
What do you actually tell the AI to build a website? The full paragraph
You tell it the same thing you’d say to someone on the phone: what you do, how much it costs, where you are, when you’re open, and how to reach you. It’s not a form or code — it’s a running paragraph.
Here’s what a description that works looks like:
“I have a laundromat in Mérida, on Calle 60 number 415, Colonia Centro. It’s called Lavandería Aqua. I do wash by the kilo at 22 pesos with a 3-kilo minimum, ironing at 15 pesos per garment, comforter washing starting at 180 pesos depending on size, and sneakers at 120 pesos a pair. Same-day delivery if dropped off before 11am. Free pickup and delivery within a 3-kilometer radius; farther than that is 40 pesos. I’m open Monday to Saturday from 8 to 8, and Sundays from 9 to 2. I want the prices shown in a clear list, a big WhatsApp button linking to 999 123 4567, and a map of where I’m located.”
That paragraph took less time to write than the line at the bank, and it covers everything that matters: what you do, how much it costs, where, when, and how to reach you. From there comes a real, published site with its own link — the one you can send over WhatsApp that same afternoon.
Don’t worry about order or polish. Write it the way you talk. A messy paragraph full of real numbers beats a perfectly organized list with none.
What doesn’t need to go on your website?
Three things: the design, sections you won’t fill in, and the usual filler. Include them and they just get in the way.
The design. You don’t need to specify colors, fonts, or where the menu goes. If you have a logo, upload it and the colors will follow from that. Asking for “navy blue with gold lettering” before you’ve seen anything is deciding blind on something you’ll adjust in two seconds once it’s actually in front of you.
Sections you won’t fill in. A blog you’re never going to write, testimonials you don’t have, a “meet our team” page when the team is you and your sister. An empty section looks worse than no section at all — it reads as an abandoned page, and that’s what actually scares customers off.
Filler. “We are a company committed to excellence and customer satisfaction” — nobody reads it and it says nothing. Swap it for “I’ve been on the same corner for 12 years” — that, people believe.
What if I don’t like the first result?
You ask again, one change at a time, and be specific. You’re going to get something that doesn’t quite click — that’s normal, and fixing it is the fast part.
“I don’t like it” isn’t an instruction. It doesn’t say what to change or in which direction. Instead, try:
- “Move the prices to the top, before the photos.”
- “Remove the testimonials section.”
- “The WhatsApp button should say Request pickup instead of Contact us.”
- “Sundays I’m open 9 to 2, not 9 to 6.”
Three or four changes like that and it already looks like what you had in mind. It’s like asking something of someone who’s already helping you: the clearer you are, the fewer rounds it takes.
Why does the AI make up details you never gave it?
Because when a detail is missing, it fills the gap. If you didn’t give hours, it’ll put some in. If you didn’t say what services you offer, it might add one that sounds logical for your line of work but that you don’t actually provide. Sometimes it’ll toss in “20 years of experience” just because it sounds good there.
It’s not lying on purpose. It’s filling in blanks — and you’re the one who left them.
That’s why the last check before publishing is simple and unforgiving: any detail that didn’t come out of your own mouth, you either confirm it or cut it. Read it like you’re the customer, and go line by line through the hours, the prices, the phone number, and the address.
Extra text doesn’t hurt anyone. Made-up hours do: someone drives all the way to your shop on a Sunday at 9am because your page said you’d be open, and finds the shutter down. That customer doesn’t come back, and they won’t tell you why.
Start with what you already know by heart
You don’t need to gather material or hire a photographer. Open the notes app on your phone and answer the five questions people ask you most over WhatsApp, with real numbers. If it takes you more than ten minutes, you’re overthinking it.
Paste that paragraph into proyecta.dev and see what comes out. That’s the point where building a website with AI stops being a technical thing — you tweak it by talking, and if it works for you, you publish it with its own link.