Pastelboard: what Claude and GPT would buy
Two AI models chose on their own, with no web access. Nobody tested these products: this is what each one says, and how to check it.
Claude and GPT choose the same product: Ampersand Pastelbord
In Arts, Crafts & Sewing, Claude and GPT choose the same brand in 46 of 83 categories.
Claude Opus 5.5 · October 27, 2026
Ampersand Pastelbord (line)
A gritty, sanded clay ground on hardboard that holds many layers of soft pastel and tolerates wet underpainting.
Not for: Artists who use pastel pencils on a light touch, or who dislike how fast an abrasive surface wears down sticks.
GPT 6.1 Sol · November 10, 2026
Ampersand Pastelbord (line)
Its rigid, archival panel and toothy surface support layered pastel work without the flex of paper.
Not for: Artists wanting a smooth surface or easily trimmed sheets.
Check before you buy
Where to find Ampersand Pastelbord
- Dick Blick Art Materials
- Jackson's Art Supplies
- eBay
Shops seen in search results on November 5, 2026. A shop missing here may sell it too. Nothing was checked by a person.
Brands that matter
- Ampersand: Pastelbord comes in white and several tinted grounds.
- Art Spectrum: Colourfix pastel primer lets you make your own sanded boards.
What to avoid
- Using smooth hardboard for heavy pastel layering