Product pages generated by ChatGPT, Claude or Gemini have a problem. They're correct, readable, often well structured. But they all look alike. Shoppers, even without theorizing about it, recognize them. Too many hollow adjectives, too many superlatives, too many "crucial" and "essential". The result: your conversion rate stalls, even though you published 200 pages in a week.

Here is how to turn an AI product page into a page that sells, in a few minutes.

What gives away an AI product page

Before you can fix it, you have to spot it. The most common patterns in an LLM-generated product page:

  • A long-winded intro. "Discover our magnificent product X, designed to meet all your needs when it comes to…". Three sentences before getting to anything concrete.
  • A string of adjectives with no content. "Elegant, refined, premium, essential, modern." Five words that say nothing.
  • A uniform bullet-point structure. The LLM loves bullet lists, even when flowing prose would read better.
  • A formulaic call to action. "Order now to enjoy its many benefits." No conviction, no contextual urgency.
  • Recopied specs. Dimensions and material repeated three times across three different paragraphs.

These patterns aren't just ugly. Google spots them too. When all your product pages follow the same template, the algorithm sees them for what they are: content cranked out on an assembly line.

The 4-step rewriting framework

1. Start with a concrete benefit, not a description

A human-written page doesn't open with "Merino wool jacket, straight cut, careful finish". It opens with: "A jacket you'll keep for ten years, because the wool holds its shape and the cut outlasts every trend."

The reader's brain needs a hook, not an inventory. You put the spec sheet lower down.

2. Remove the generic vocabulary

List the words that come out of ChatGPT too often: crucial, pivotal, optimal, revolutionary, essential, one of a kind, bespoke, premium, high-end. Unless a precise fact justifies them, they disappear.

In their place, write what the object actually does. Not "premium material", but "19-micron wool" or "GRS-certified recycled polyester". Figures and certifications speak louder than adjectives.

3. Vary sentence length

By default the LLM writes medium-length sentences, all similar. A human alternates short and long. That's what creates rhythm, what keeps you reading.

A quick exercise: reread your paragraph and count the sentences under 8 words. If you have zero, you have an AI text. Add two or three.

4. Anchor with a detail

One concrete detail transforms a page. "This teapot keeps tea hot for 1h30 at 80°C, tested in our kitchen" beats "Excellent heat retention" every time. A detail is a commitment. The reader understands that someone tested, weighed, measured.

If you don't have a measured detail, invoke a precise use: "Long enough to wrap a newborn, fine enough to machine-wash every day."

The specific tics to hunt down

On top of the classic flaws, a few formulas that are typical of LLMs flag the text as AI instantly:

  • "It's important to note that…"
  • "In today's world…"
  • "Indeed" used as a crutch
  • "Not only X, but also Y"
  • Starting everything with "Our product is…"
  • The transitions "Moreover…", "Furthermore…"

And the punctuation. AI copy leans hard on em dashes (—) where a human writer would use a comma or a period. One or two em dashes read as a choice; one per sentence reads as a machine. The em dash has its place in literature, not in a Shopify product page. Rephrase reins them in automatically, except in the literary presets you explicitly choose.

The Rephrase case

With Rephrase, you paste your AI-generated product page, select the "Web · Shopify product page" preset, and click. In 3 seconds the text is rewritten: the hollow adjectives drop out, the sentences diversify, the rhythm comes back. You can also create a Custom Voice from three pages you wrote yourself: the result will imitate your style, not a generic one.

Credits used: 1 credit per 100 words. A 300-word page = 3 credits. An 80-word page = 1 credit minimum. Credits never expire.

Two rules to keep in mind

  1. Don't let the AI invent specs. An LLM can hallucinate: invent a dimension, a composition, a certification. Check the facts after humanizing. The micron count of a wool, the origin of a material, a European standard: if you didn't provide it in the prompt, be wary.

  2. Make the pages differ from one another. Even humanized, each page needs its own hook. Otherwise you slide right back into the soup. The Custom Voice helps here: because it learns your style without locking in a single template, the pages keep different hooks.

Expected outcome

On a store we tested (natural cosmetics, 140 SKUs), running the AI pages systematically through Rephrase with the Shopify preset made it possible to:

  • Gain 22% in time spent on page (source: Umami)
  • Stay indexed by Google despite a high volume of new pages
  • Reduce returns phrased as "the description didn't quite match"

Nothing magic: just pages that respect the reader.

Frequently asked questions

Does Rephrase keep the technical specs? Yes. The prompt explicitly forbids changing facts, figures, proper nouns and quotes. Only the style and the prose change.

Can I humanize 200 pages at once? Through the API (POST /v1/api/humanize), yes. Each page is billed by word count. The history stays available in your workspace.

Are my product pages confidential? Yes. Your texts are never used to train a model, and we ask our AI providers not to retain them. In the Rephrase database, the pages are encrypted with AES-256-GCM. For the full details, see our privacy policy.