How to Write Product Descriptions with AI (Shopify Magic, ChatGPT and Claude)

AI can turn a list of product details into a readable description in seconds. The risk is just as fast: invented materials, wrong sizes and claims you can’t back up. The method below keeps the speed and removes most of the risk. It works with Shopify’s built-in tool or with any chat assistant.

Step 1: Collect the facts before you open any AI tool

The quality of an AI description depends on what you give it. For each product, write down:

• What it is and who it’s for
• Specifications: materials, dimensions, weight, capacity, ingredients, compatibility
• What’s in the box
• Care, usage or safety notes
• The two or three benefits a customer actually cares about
• Words you must avoid (for example, health or performance claims you can’t prove)

Keep this in a spreadsheet. It becomes your single source of truth, and it makes bulk work much easier later.

Step 2: Choose your tool

Shopify Magic (if you sell on Shopify)

Shopify’s built-in generator works inside the product editor, with no app to install. According to Shopify, you enter a few product details, pick a predefined tone or describe your own brand voice, and generate as many versions as you need before publishing. Shopify lists it as included with Shopify.

Its App Store page also lists what it does not do: SEO titles and meta descriptions, alt text, bulk editing, import/export and translation (Shopify points to its Translate & Adapt app for translations). So plan to write your SEO title and meta description separately.

A chat assistant (ChatGPT or Claude)

ChatGPT and Claude are better when you want more control: a detailed brand voice, several variations at once, or descriptions for a whole spreadsheet of products. Both have free plans and paid plans. Before pasting supplier documents or customer data, check each tool’s data settings.

A marketing writing tool

Tools such as Jasper and Copy.ai add brand-voice and team features on top of AI writing. They make sense once several people write copy for you; a solo store owner rarely needs them to start.

Step 3: Use a fact-first prompt

Paste your facts and ask for a description that uses only those facts:

You are writing a product description for [store name], which sells [what you sell] to [customer].
Brand voice: [three adjectives, e.g. warm, practical, no hype].

Use ONLY the facts below. If a detail is missing, leave it out. Do not invent materials,
measurements, certifications, reviews or health claims.

Facts:
[paste your product facts]

Write:
1. A 2-sentence opening that says what it is and who it's for.
2. 4–5 bullet points of benefits, each tied to a fact above.
3. A short "Details" list with specifications exactly as given.
Keep it under 150 words. American English.

Our AI Prompt Generator can help you build a reusable version of this prompt, and the ecommerce template pack includes a facts-only product description template.

Step 4: Check before you publish

Read every description against your fact sheet. Look for:

• Invented details: materials, sizes, origins or certifications that aren’t in your facts
• Claims you can’t support: “the best”, “clinically proven”, “cures”, “guaranteed results”
• Wrong units or numbers copied incorrectly
• Repetition across products: if every description opens the same way, rewrite the first line

Some claims carry legal risk, especially for food, supplements, cosmetics and children’s products. When in doubt, cut the claim.

Step 5: Add SEO basics

AI description tools don’t usually handle search metadata, so finish each product with:

• A product title that includes the words customers search for
• A meta title and meta description — try our free Meta Title Generator and Meta Description Generator
• Descriptive image alt text written by you

A simple weekly routine

For a store adding products regularly: keep the fact sheet up to date, generate two versions per product, pick the better one, check it against the facts, then add SEO fields. Most stores find the checking step is where the time goes, which is a good sign that it’s working.

For the bigger picture of where AI helps an online store, see AI tools for ecommerce.