GPTZero vs Winston AI vs Grammarly

Which one fits you in 2026? Traffic, pricing, input → output, tasks and community side by side.

Your tool
GPTZero
vs
Competitor 1
Winston AI
Competitor 2
Grammarly
Competitor 3
Suggested competitors for GPTZero: Originality.AI88% Copyleaks84% ZeroGPT78% Turnitin74% Dechecker AI72% ZeroGPT Plus70% Detecting-AI.com70% isFake.ai68%
Compare
3 tools · best value per row highlighted
Your tool GPTZero
gptzero.me
Used by over 10 million teachers and students across more than 100 countries, GPTZero detects AI-generated text across major language models while providing a suite of writing verification tools
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Competitor Winston AI
gowinston.ai
Winston AI is an AI content detector and plagiarism checker built for education, SEO, and writing.
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Competitor Grammarly
grammarly.com
Writing confidence that follows you everywhere
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
11Mvisits/mo
—
49.3Mvisits/mo
MoM change
—
—
▲ 10.8%
6-month growth
—
—
-22.5%
Global rank web
—
—
#688
Avg. last 3 months
11M
—
46.5M
Bounce rate lower is better
—
—
40%
Pages / visit
—
—
7.8
Visit duration
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—
4m 41s
Traffic sources
—
—
● Direct 85% · ● Referral 9%
GPTZeroWinston AIGrammarly
015.9M31.8M47.7M63.6MGPTZero · 11MGrammarly · 58.8MGrammarly · 54.5MGrammarly · 55.9MGrammarly · 55.7MGrammarly · 63.6MGrammarly · 58.3MGrammarly · 54MGrammarly · 45.8MGrammarly · 44.5MGrammarly · 49.3M10M100MGPTZero · 11MGrammarly · 58.8MGrammarly · 54.5MGrammarly · 55.9MGrammarly · 55.7MGrammarly · 63.6MGrammarly · 58.3MGrammarly · 54MGrammarly · 45.8MGrammarly · 44.5MGrammarly · 49.3MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
Freemium
Starting price
$12.99per month · free tier available
$10per month · free tier available
$12per month · free tier available
Free tier
Free trial
–
API access
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Plans
Free FreePremium $12.99/moProfessional $24.99/mo
Free FreeEssential $10/moAdvanced $16/moElite $26/mo+1 more
Free FreePro Custom/moEnterprise Custom/mo
Capabilities input → output
Input
DocumentsText
DocumentsImagesText
Text
Output
DataText
Data
Text
Skill level
Beginner-friendly
Beginner-friendly
Beginner-friendly
Categories
AI Detection & SafetyAI DetectorAI Plagiarism Checker
AI Detection & SafetyAI DetectorAI Image DetectorAI Plagiarism Checker
AI Detection & SafetyWriting & ContentAI DetectorAI Grammar Checker+4 more
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
7
2
6
Detection
Grammar checking
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Plagiarism detection
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AI authorship detection
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Paraphrasing
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Writing
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–
Content detection
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–
Hallucination detection
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–
Image authenticity analysis
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–
Proofreading
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–
Content authenticity verification
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–
Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 1
▲ 0
▲ 1
Saves
0
0
0
Reviews
0
0
0
Prompts
0
0
0
Verified listing
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Traffic figures are third-party estimates for the tool's own domain; tools sharing a domain with a bigger product are not counted. Pricing is captured from each tool's site and may lag.