← All models DeepSeek V4 Pro editing test DeepSeek · Tested Oct 28, 2026 · 21s · $0.03
Four checks All in one 43/90 caught
Grammar & spelling 30/45 Repetitions 4/15 Redundancy 6/15 Consistency 3/15 44 comments · 2 extra flags
DeepSeek V4 Pro'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 · 47
who, not whom: subject of 'was' “whom she guessed was the owner” raise/rise: rents had risen “where rents had raised every year” Counterfactual takes the past perfect: If she had called “If she would have called ahead” 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” Indirect question, statement order: how the lawyer had been “asked how had the lawyer been” Missing auxiliary: had been “The fuse box by the back door been painted shut” Unpaired comma: Marsh, stood “who introduced herself as Rebecca Marsh stood” Indirect question ends with a period “had even noticed she was gone?” Restrictive clause, no commas: the entries that held “The entries, which held only a single word, were” in to, not into “turned his uniform into the quartermaster” an MBA: said 'em-bee-ay' “Daniel had a MBA” stationery, not stationary “a box of cream stationary” 'one of those who' takes a plural verb: were “one of the last binders in New England who was still” Comma splice “open on her chest, she woke at dawn” Close: careful … careful “his careful hands” Close: silence … silent “The silence in the workshop” Distinctive, chapters apart: meticulous “His records were meticulous” Close: neatly … neat “neatly labeled” Distinctive, chapters apart: gleaming “a gleaming pair of shoes” Distinctive, chapters apart: sodden “carrying sodden leaves” Close: in earnest … in earnest “the rain had started in earnest” Distinctive, chapters apart: brittle “a short, brittle sound” Distinctive, chapters apart: stubbornly “which stuck stubbornly” Close: remembered … memory “her hands remembered” Close: stiffness … stiff “some of the stiffness” twins are two “the two twins” one shrugs with the shoulders “shrugged his shoulders” the reason … was because “was because he had never paid himself” a sum is a total “The sum total” an agreement is mutual “By mutual agreement” planning is in advance “no advance planning” a haven is safe “a safe haven” began is first “the week we first began” join together “wants them to join together” The bakery has three tables; she sits at the fourth “three small tables” Grandfather's eyes: grey, then blue “the same gray eyes as her grandfather” Said on Friday: the day after tomorrow is Sunday “On Friday a woman knocked” Daniel is younger, yet born a year before her “her younger brother, Daniel” The ledger: green, then red “a ledger bound in green leather” Tea becomes coffee “poured her a mug of tea” Tomas beside him: two decades, then thirty years “for most of two decades” The bakery: two doors down, then a ten-minute walk “BAKERY TWO DOORS DOWN” Nora's home: Chicago, then Boston “the firm in Chicago” Opening year: 1962, then 1971 “opened the shop in 1962” Grandmother: Ruth, then Rose “her grandmother, Ruth” Writes left-handed, then with his right “He had been left-handed”