Comparison
| Tool | Why it fits (from official info) | Pricing | Official pricing | Checked |
|---|---|---|---|---|
 Shopify Sidekick | Built into the Shopify admin and reads your store data; 'Write me product descriptions for SEO' is one of its listed prompts. Included with Shopify plans. | See official site | Per the official FAQ, Sidekick costs nothing extra: it's included with your Shopify plan, with features and usage limits varying by plan. Requires a Shopify store. | |
 Jasper | Jasper IQ applies your brand voice, style guide and product knowledge to every output, useful when several people write listings. | Paid | Pro $69/seat/month billed monthly or $59/month billed yearly; Business is custom-priced via sales. Pro has a 7-day free trial. | |
 Copy.ai | Chat plan gives 5 seats and unlimited chat words with OpenAI, Anthropic and Gemini models; higher plans add workflow automation. | Paid | From the official pricing page (2026-11-02): Chat $29/month billed monthly or $288/year ($24/month), 5 seats; Growth $1,000/month ($12,000/year, 75 seats); Expansion $2,000/month ($24,000/year, 150 seats); Scale $3,000/month ($36,000/year, 200 seats); Enterprise via sales. | |
 ChatGPT | Free tier for drafting; file uploads and data analysis let you work from a supplier spreadsheet. | Freemium | Free, Go, Plus and Pro plans plus Business/Enterprise, billed monthly or yearly; prices are shown per region, see the official page. | |
 Claude | Free plan for drafting; the pricing page also lists API prices if you want to generate listings in bulk. | Freemium | Official pricing (2026-11-13, excludes tax): Free $0 (usage limits every 5 hours and every week); Pro $20 monthly or $17/month billed annually ($200 up front); Max $100/month (5x Pro usage, $100 a month in API credits); new Ultra $200/month (10x Pro weekly usage, no 5-hour limit for verified accounts, $200 a month in API credits); Team (2–150 people) and Enterprise plans are listed, but seat prices were not shown on the page we fetched. | |
 Google Gemini | Free plan; works with Gmail and Docs if your product notes already live in Google Workspace. | Freemium | US pricing: Free $0; Google AI Plus $4.99/month; Google AI Pro $19.99/month; Google AI Ultra in two tiers, $99.99/month (5x AI Pro usage limits) and $199.99/month (20x). Business plans are separate. Other regions vary. | |
 DeepSeek | Free web chat and a low per-token API price, handy for bulk-generating descriptions for many SKUs. | See official site | API is billed per 1M tokens (official page, 2026-11-14): deepseek-flash input (cache miss) $0.30 peak / $0.15 off-peak, cache hit $0.006 / $0.003, output $1.20 peak / $0.60 off-peak; deepseek-v4-pro input (cache miss) $1.32 peak / $0.66 off-peak, output $3.96 peak / $1.98 off-peak. Off-peak is half the peak rate (peak = 01:00–04:00 and 06:00–10:00 UTC on weekdays). Web search and web fetch $0.75 per 1,000 each; file parsing/OCR $0.225 per 1,000 pages. Check the site for chat app pricing. |
How to do it with AI
- Write a fact sheet for the product: materials, dimensions, capacity, use cases, certifications, what's in the box. Only include what you can prove.
- Paste the fact sheet with the prompt below and ask for a title, five bullet points and a description.
- Generate two versions with two tools, then merge the best phrasing.
- Check every number, unit and claim against the real product and your marketplace's listing rules. Remove anything the AI added that you didn't supply.
- For many SKUs, put the fixed prompt plus each SKU's specs in a spreadsheet and run it through an API, then spot-check the results.
Prompt template (our suggested wording, not a test output)
I sell [product] on Amazon US. Specs: [list each spec]. Write in English: 1) a product title under 200 characters; 2) five bullet points, each starting with a short phrase; 3) a product description of about 80 words. Use only the specs I gave you. Don't add features or certifications I didn't list, and avoid exaggerated or unprovable claims.
How the Chinese edition of this guide compares
The Chinese version of this guide covers a different set of tools for the same task. Here they are side by side.
| Need | This page | Chinese edition |
|---|---|---|
| Draft copy for free | Free plans of ChatGPT, Claude, Gemini | DeepSeek (free web chat) |
| Bulk-generate for many SKUs | Claude API, DeepSeek API | DeepSeek API |
| Work from supplier spreadsheets and PDFs | ChatGPT (file uploads and data analysis) | Kimi (Excel and PDF) |
| Generate inside your store admin | Shopify Sidekick | Not listed yet |
| Keep one brand voice across a team | Jasper, Copy.ai | Not listed yet |
FAQ
What is the best AI tool for writing Shopify product descriptions?
Shopify's own Sidekick is the most direct option: it lives in the Shopify admin, can read your store data, and 'Write me product descriptions for SEO' is one of its listed prompts. Shopify's FAQ says it's included with your plan, with features and limits varying by plan.
Is there a free AI tool for Amazon listings?
ChatGPT, Claude and Gemini all have free plans you can use to draft titles, bullet points and descriptions, and DeepSeek's web chat is free. Paid plans raise usage limits.
How much do Jasper and Copy.ai cost?
Jasper Pro is $69 per seat per month billed monthly or $59 billed yearly, with a 7-day free trial; Business is custom-priced. Copy.ai's Chat plan is $29/month billed monthly or $288/year ($24/month) and includes 5 seats. Prices checked on 2026-10-21 on the official pricing pages.
How can I generate descriptions for hundreds of products cheaply?
Use an API billed per token. DeepSeek's pricing page lists deepseek-flash at $0.30 per 1M input tokens (cache miss, peak) and $1.20 per 1M output tokens at peak, with off-peak at half price. Claude's pricing page also lists API rates.
Can I publish AI-written product descriptions as they are?
Review them first. AI can add features you never mentioned or use exaggerated claims, so check every number, unit and certification and follow your marketplace's listing rules. Telling the AI to use only the specs you supply helps.
Head-to-head comparisons
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