How to Write Website Copy With AI That Doesn't Sound Like AI

Give the AI raw material it cannot invent: exactly what you sell, who buys it, the words your customers use, proof you can verify and the things you refuse to do. Then edit out the habits that mark machine-written copy, such as stacked adjectives, padded lists of three, rhetorical questions and claims nobody can check. Copy stops sounding like AI when the specifics come from you and the AI only arranges them.

Why AI copy sounds like AI

A language model writes the most likely words for the prompt it gets. Ask for "a homepage for a bookkeeping firm" and the most likely homepage is an average of every bookkeeping homepage it has seen. That average is what readers recognize as AI: "reliable, tailored solutions," "your trusted partner," "take the stress out of your finances." None of it is false, and none of it says anything.

The fix is not a cleverer instruction like "sound human." It is better input. The rest of this post uses one running example, a bookkeeper who works only with independent restaurants and cafes, and shows the brief, the prompts and the edits.

If you build your site with FNJ's AI website builder, the same brief goes into your first prompt, and the copy on every page is written from it.

Step 1: Write a copy brief before you prompt

Spend twenty minutes on this before you write a single prompt.

• What you sell, exactly. "Monthly bookkeeping, payroll and VAT returns for independent restaurants and cafes."
• Who it is for, and who it is not for. "Owner-run places with one to three sites. Not chains or franchises."
• How it works. "Owners photograph receipts on their phone. We reconcile weekly and send a one-page report on the 5th of each month."
• How pricing works. "A fixed monthly fee based on the number of sites." You do not have to publish numbers, but say how it is priced.
• Proof you can stand behind. Years in the work, qualifications, a real review you have permission to quote, a client who agreed to be named.
• Your customers' own words. Phrases from emails, calls and reviews: "I dread the VAT deadline," "my accountant only talks to me once a year."
• Objections. "Switching sounds like a lot of work." "I already pay for accounting software."
• What makes you different, including what you refuse to do. "We only work with hospitality businesses."
• Voice samples. Two or three sentences you have written in real emails that sound like you.
• The one action you want. "Book a 20-minute call."

Find customer language in your reviews, your sent emails and the questions people ask before they buy.

Step 2: Prompt page by page, and forbid invention

Paste the brief, then ask for one page at a time. Tell the AI what to do when it lacks a fact, because otherwise it will fill the gap with something plausible and untrue.

Using only the facts in the brief above, write the homepage copy.
Sections: hero (headline + one-sentence subhead + button),
three reasons to choose us, how it works in three steps,
one testimonial (use the review in the brief word for word),
pricing summary, final call to action.
Use the customers' phrases where they fit.
Match the tone of the voice samples: short sentences, first person plural.
Do not invent numbers, clients, awards or reviews.
If a section needs a fact that is not in the brief, write [TK: what's missing].
Give me 5 headline options before the full page.

Asking for several headlines matters. The first option is usually the most average one, and the third or fourth is often where something specific appears.

For more prompt patterns, see our AI website builder prompts with 20 examples.

Step 3: Edit out the patterns

Read the draft once just hunting for these. The rewrites use the running example and are illustrations: any number, time or claim in your version must be true for your business.

Pattern	Typical AI line	Rewrite with specifics
Adjective stacks	"Reliable, efficient and tailored bookkeeping solutions."	"Your books reconciled every week by someone who knows how a restaurant makes money."
Empty superlatives	"World-class service you can trust."	"We reply to email the same working day."
Rhetorical openers	"Tired of drowning in receipts?"	"Photograph a receipt and it is in your books by Friday."
"We're passionate about"	"We're passionate about helping businesses thrive."	One true sentence about why you started, in your words.
Padded triplets	"Save time, reduce stress and grow your business."	Pick the one benefit you can prove and prove it.
Throat-clearing	"Welcome to our website! We are a dedicated team of professionals..."	Delete it and start with what you do.
Vague process	"Our streamlined process makes it easy."	"1. Connect your bank. 2. Photograph receipts. 3. Get your report on the 5th."
Invented proof	"Trusted by hundreds of businesses."	The real number, a named client with permission, or nothing.
Filler intensifiers	"We truly, really care about getting it right."	Delete "truly" and "really," then ask whether the sentence is needed at all.

Words worth searching for and questioning in any AI draft: innovative, solutions, tailored, world-class, one-stop shop, passionate, dedicated team, peace of mind, hassle-free, state-of-the-art, streamlined, thrive, journey, next level. Each one is a sign that a specific detail is missing.

Headline formulas that hold up

A good headline says what you do and who it is for, or makes one specific promise. The subhead does the explaining.

• [What you do] for [who]: "Bookkeeping for independent restaurants and cafes"
• [Outcome] without [the pain]: "Month-end numbers without the shoebox of receipts"
• [A promise you keep, with a number or a time]: "Your books closed by the 5th of every month"
• [The customer's own words]: "For restaurant owners who dread the VAT deadline"
• [Category] who [real differentiator]: "A bookkeeper who only works with hospitality"

Before and after, across different businesses

The "after" lines show the shape of specific copy. Swap in your own real details.

• Dentist. Before: "Exceptional dental care for the whole family." After: "Family dentist with weekday appointments until 8pm and a play corner in the waiting room."
• Wedding photographer. Before: "Capturing your special moments forever." After: "Documentary wedding photography. Few posed shots, and your full gallery within six weeks."
• Restaurant. Before: "A culinary experience you won't forget." After: "Wood-fired Neapolitan pizza until 11pm, with walk-ins welcome at the bar."
• Electrician. Before: "Quality electrical services at competitive prices." After: "Rewires, fuse boards and EV chargers across north Leeds, with a fixed quote after one visit."
• Software product. Before: "The all-in-one platform for modern teams." After: "Shift scheduling for small clinics, with swap requests approved from your phone."

Notice what changed each time. The after line names a specific customer, a specific thing and a concrete detail a competitor could not copy without it being false.

A page-by-page copy checklist

Home

• The headline says what you do and for whom, in about ten words or fewer.
• The subhead adds how, where, or how it is priced.
• One primary button, repeated after the main sections.
• Real proof near the top: a review, qualifications, years in business, client names with permission.
• Each reason to choose you carries one specific detail.

Services

• One section or page per service: what is included, who it suits, how it is priced and what happens first.

About

• Who is behind the business, a real photo, why it exists and what you are qualified to do.

Pricing

• Prices, or how pricing works, plus what is included and what costs extra.

Contact

• What happens after someone gets in touch, and how quickly you reply, if you will keep that promise.

FAQ page

• Questions customers actually ask, answered in the first sentence.

Edit with follow-up prompts

After the first draft, short follow-ups do more than a long rewrite request:

• "List every claim on this page that is not in the brief." Then delete or verify each one.
• "Remove every adjective that is not backed by a fact in the brief."
• "Rewrite the hero headline in under eight words using the phrase 'dread the VAT deadline'."
• "Replace the three benefit cards with the three objections from the brief, each answered in two sentences."
• "Rewrite the About section to match the voice samples: shorter sentences, first person."

The final read

1. Read it aloud. You will hear the brochure voice before you see it.
2. Run the swap test. If a competitor could paste a sentence onto their site unchanged, rewrite it.
3. Ask "so what?" after every benefit. If the answer is not on the page, add it.
4. Check every claim against the brief, and search for [TK and other placeholders.
5. Check who, how and why. Google's guide to creating helpful, people-first content asks whether readers can tell who made the content and why it exists. A real name, a real photo and a clear reason for the page answer both. For the search side of AI-written pages, see whether AI-built websites are bad for SEO.

Where FNJ fits

FNJ's AI builder writes copy for your business from your description, and it takes only the look of any reference you give it, never its words. That makes the copy brief above the most useful thing you can paste into your first prompt. After the first build, you can ask for changes in plain words ("rewrite the hero using our customers' phrase about the VAT deadline") or select any text on the canvas and rewrite it yourself. Start with your brief and build your site with FNJ's AI website builder.

Frequently asked questions

Can people tell when website copy was written by AI?

Often, yes, because unedited AI copy repeats recognizable patterns: stacked adjectives, lists of three, rhetorical questions and claims with no specifics. Copy built from real details and edited by the business owner reads like any other good copy.

Is it OK to use AI to write my website copy?

Yes, as long as the result is accurate and useful. Google's guidance focuses on whether content helps people rather than how it was produced, and you remain responsible for every claim on the page.

What should I give an AI to write website copy?

A short brief: what you sell, who it is for and not for, how it works, how pricing works, proof you can verify, your customers' own phrases, common objections, a few sentences in your voice and the one action you want visitors to take.

Should I let AI write testimonials or reviews?

No. Only publish real reviews from real customers, with their permission, word for word. Invented testimonials mislead visitors and may break consumer protection rules, which vary by country.