- One page — roughly 380–450 words across the whole document, laid out to fit a single sheet.
- Standard — 2 to 10 pages, roughly 900–4,800 words.
- Full — 10 pages and beyond, roughly 5,000–15,000 words, for detailed or regulated documents.
Paper size defaults from your country — A4 in most of the world, Letter in North America, Legal where you need it. The canvas shows a live page estimate and warns you when a section is over its budget for the chosen length.
Length class changes the writing, not just the layout. Switching from Full to One page rewrites to the tighter budget rather than truncating.