← All models Gemini 4 Argon editing test Google · Tested Oct 27, 2026 · 48s · $0.05
Four checks All in one 80/90 caught
Grammar & spelling 42/45 Repetitions 11/15 Redundancy 13/15 Consistency 14/15 82 comments · 3 extra flags
Gemini 4 Argon'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
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” 'one of those who' takes a plural verb: were “one of the last binders in New England who was still” Distinctive, chapters apart: meticulous “His records were meticulous” Distinctive, chapters apart: gleaming “a gleaming pair of shoes” Distinctive, chapters apart: sodden “carrying sodden leaves” Distinctive, chapters apart: brittle “a short, brittle sound” a sum is a total “The sum total” an agreement is mutual “By mutual agreement” Tomas beside him: two decades, then thirty years “for most of two decades”