← All models GPT-6.1 Sol editing test OpenAI · Tested Oct 27, 2026 · 1m 9s · $0.08
Four checks All in one 80/90 caught
Grammar & spelling 42/45 Repetitions 10/15 Redundancy 13/15 Consistency 15/15 82 comments · 2 extra flags
GPT-6.1 Sol's comments when asked for all 4 checks in one prompt on our 6,000-word test story, where it left it. Click a missed mistake to find it in the text. The checks come from icanwrite , a markdown editor for writers.
Missed · 10
who, not whom: subject of 'was' “whom she guessed was the owner” any other shop: the bakery is on Wharf Street “longer than any shop on Wharf Street” Fragment: the survey has no verb “The survey from twelve years ago, which an engineer from the county” Distinctive, chapters apart: gleaming “a gleaming pair of shoes” Distinctive, chapters apart: sodden “carrying sodden leaves” Distinctive, chapters apart: brittle “a short, brittle sound” Distinctive, chapters apart: stubbornly “which stuck stubbornly” Close: remembered … memory “her hands remembered” an agreement is mutual “By mutual agreement” began is first “the week we first began”