Product Description Writer
Convert specs into compelling copy
Transform raw product specifications, dimensions, and technical data into compelling, benefit-focused descriptions optimized for e-commerce listings. Handles tone variations for different channels — marketplaces, DTC sites, and wholesale catalogs.
GPT-6 Luna
for 400K tokens a month · 40% input / 60% output
Why this model
For this workload — 400K tokens a month, 40% of them input — it comes to about $0.14 a month, the lowest of the models suggested here.
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Implementation tips
- 1
Structure your input as a JSON spec sheet — feature name, value, and why it matters — so the model can selectively emphasize the right benefits for each audience rather than listing everything.
- 2
Generate three length variants per product (50-word, 150-word, 400-word) in one call — covers every channel need without redundant API calls.
- 3
Include competitor listing examples in the prompt and ask the model to differentiate, not just describe — this produces copy with genuine positioning rather than generic feature lists.