Every AI writing tool has a voice, and it isn't yours. Ream learns yours from pages you've already written — then sharpens it by asking you to choose, one variable at a time.
Calibration is a sequence of small, deliberate questions. Never a slider, never a hidden weight.
Each has declared poles, so the model never invents what to vary. The most uncertain are asked first — most writers stop early, so the early rounds have to be the informative ones.
| Dimension | One pole | The other |
|---|---|---|
| Sentence rhythm | short & punchy | longer, clause-stacked |
| Asides | em-dash | parentheses or comma clause |
| Sentence openers | And / But / So | plain subject-verb |
| Address | second person | impersonal |
| Formality | contractions | none |
| Hedging | hedged | flat assertion |
| Emphasis | italics & bold | plain |
| Paragraph length | short | developed |
| Lists vs prose | bullets | running prose |
| Concreteness | abstract claim | concrete example |
| Closing move | aphoristic snap | summary |
| Humour | dry aside | straight |
Rewrite, continue and expand come back in your voice instead of the model's.
Drift check flags where a passage stopped sounding like you — useful on a chapter written at 1am, or six months later.
Voices belong to you, not to a project. Train one once and it is there in every book you start.
Ream won't generate prose in your voice until the six core dimensions are calibrated. Editorial notes work from day one — the gate is only on writing as you.
A voice is usable at zero rounds. Calibration improves it; it never unlocks it.
Every pick lands in the do / avoid list on the style card, in plain language. No opaque score, no hidden weight, nothing you can't overrule.
Nobody sits through twelve rounds in one go. Sessions persist and resume where you left them.
Free to write, forever. Free ink every day for 10 days to try your editors.
Download for macOSMore on how Ream works: The writers' room · Ream vs. Sudowrite vs. Scrivener · Docs