What is the best AI model for writing product descriptions?
For product descriptions, Claude Sonnet 4.6 and GPT-5.4 consistently produce the cleanest commercial copy — concise, benefit-focused, and persuasive without sounding AI-generated. For very high volume (hundreds of SKUs), DeepSeek V3 is significantly faster and cheaper with comparable quality at scale.
Model comparison for product copy
| Model | Quality | Speed | Cost |
|---|---|---|---|
| Claude Sonnet 4.6 | Excellent | Fast | Medium |
| GPT-5.4 | Excellent | Moderate | Medium |
| Claude Haiku 4.5 | Good | Very fast | Low |
| DeepSeek V3 | Good | Very fast | Low |
| GPT-5.5 | Best | Slower | High |
Prompt template
Write a product description for [product name].
Key features: [list 3–5 bullet points].
Target audience: [e.g. home bakers, gym-goers, remote workers].
Tone: [friendly/professional/luxurious].
Length: 2–3 sentences + 3 bullet points.
For bulk generation
Use Kunya's Blog CMS bulk task feature to generate hundreds of product descriptions at once. Each description is checked for keyword inclusion and readability automatically.