AI grammar checker statistics, October 2026

Four numbers for October 2026, each counted over the month. Visits mean visits from Google search to the 21 AI grammar checker sites I track. Tap one for the details.

• Visits from Google78Mvisits+8% vs a year ago
• Google searches40.5Ksearchesfor "ai grammar checker"
• Most visited site29MvisitsClaude, 37% of all
• Expected in November78Mvisits-0.5% vs last month

• 78,192,141 Google visits went to the 21 AI grammar checker sites RankDude tracks in October 2026, 8% more than a year earlier (24% fewer without Claude).
• Shrinking: the AI grammar checker market is shrinking, but name searches are up 90% since October 2025.
• 40,500 searches a month for “ai grammar checker” worldwide, 37% of them in the US (Google Ads, 12-month average).
• 37% of all visits go to Claude, the most-visited AI grammar checker; the five most-visited take 83.8%.
• 14.6% of visits come from the United States, followed by India, the United Kingdom and Canada.
• 77,836,280 visits expected in November 2026, likely between 72M and 84M.

Source: DataForSEO, Google Ads and Google Trends, October 2026, compiled by RankDude.

Shrinking, but name searches are up 90% since October 2025.

Over two years, visits went from 38M in November 2024 to a high of 79M in September 2026, and stand at 78M in October 2026. Much of the year’s change is one site, Claude, which is why I also look at the market without it.

Visits, year on year

-24%

Visits, last six months

+3%

Name searches, US

+90%

Busiest month (2 years)

September 2026, 79M visits

Miles explains

I only call a market growing when visits and name searches agree. Here visits are down and name searches are up, so they don’t agree yet.

Open the AI grammar checker market demand page

“ai grammar checker” is searched about 40,500 times a month worldwide, 37% of it in the US.

Google Trends barely registered “ai grammar checker” until January 2023; interest then climbed to its peak in February 2025. Americans make 37% of the searches but only 14.6% of the visits, because the big sites also draw heavily from India, United Kingdom and Canada.

Searches a month, US

14,800

Google Trends now

49/100 -42%

Five-year peak

90/100 in February 2025

Miles explains

Google Trends shows direction, not volume. Interest is lower than a year ago, and I only trust that when the visits move the same way.

Open the AI grammar checker search trends page

More visits than a year ago only because of Claude, more people searching by name, and the next six months look flat.

The fastest growers over the year, Claude, Harper and Linguix, grew fastest, mostly from a smaller base. The losers, led by Wordtune, lost most of their search visits (-85%).

Visits vs September 2026

-2%

Biggest gain this month

WhiteSmoke +58%

Biggest loss this month

ZeroGPT -25%

Miles explains

Huge percentages like Claude’s +319% usually mean one site won a big Google ranking from a small start. I watch whether it holds the next month.

Open the AI grammar checker monthly analysis page

I expect November 2026 to be about the same as October 2026, and the next six months to look flat.

The forecast carries the level of recent months forward, not the trend line, because that version missed least when tested on past months. November is usually a busier month than average for searches, but the calendar did not improve the forecast, so it is left out.

Expected in November 2026

77,836,280 visits

Likely range

72M to 84M

Expected in May 2027

78M -0.5%

Past forecasts in range

6 of 6 months

Miles explains

Read the range, not the single number: tested on the last 6 months, my method landed inside its range 6 times.

Open the AI grammar checker monthly forecast page

The most visited is Claude, with 29 million visits a month, 37% of all visits.

Claude and Grammarly together hold 65% of all visits. Below the top five the market is long and thin: the other 16 sites share 16.2%.

Top five sites

83.8% of all visits

Visits from the US

14.6%

Largest markets outside the US

India, United Kingdom and Canada

Sites tracked

21

Miles explains

Claude alone has 37% of all visits. That’s a big lead, but one Google update can close it fast.

Open the AI grammar checker industry report page

Yes. Every number on these pages comes from two CSV files, free to download.

sites.csv has one row per site: its Google US position for “ai grammar checker”, Tranco rank, Chrome UX tier, visits from Google worldwide and in the US, name searches, Domain Rating and referring domains, with the month each figure covers. market.csv has the monthly totals across the tracked sites: visits worldwide and in the US, name searches and referring domains. Blanks mean the source had no figure, never zero.

Cite as: Miles Foster, “AI Grammar Checker Statistics, October 2026”, RankDude, https://rankdude.ai/statistics/ai-grammar-checker