GPTZero vs Detecting-AI.com vs Copyleaks vs Grammarly

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

Your tool
GPTZero
vs
Competitor 1
Detecting-AI.com
Competitor 2
Copyleaks
Competitor 3
Grammarly
Compare
4 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 Detecting-AI.com
detecting-ai.com
The free plan hands you 5,000 characters per check
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Competitor Copyleaks
copyleaks.com
Copyleaks is a content authenticity platform that checks whether text was written by AI and whether it copies existing sources.
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Competitor Grammarly
grammarly.com
Writing confidence that follows you everywhere
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Traffic estimated monthly website traffic
Monthly visits
11Mvisits/mo
57.4Kvisits/mo
—
49.3Mvisits/mo
MoM change
—
▼ 39.7%
—
▲ 10.8%
6-month growth
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-11.1%
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-22.5%
Global rank web
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#312,638
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#688
Avg. last 3 months
11M
86.9K
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46.5M
Bounce rate lower is better
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38%
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40%
Pages / visit
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5.3
—
7.8
Visit duration
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2m 21s
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4m 41s
Traffic sources
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● Direct 83% · ● Referral 17%
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● Direct 85% · ● Referral 9%
GPTZeroDetecting-AI.comCopyleaksGrammarly
015.9M31.8M47.7M63.6MGPTZero · 11MDetecting-AI.com · 211.3KDetecting-AI.com · 192.2KDetecting-AI.com · 121.5KDetecting-AI.com · 63.8KDetecting-AI.com · 64.6KDetecting-AI.com · 66.6KDetecting-AI.com · 69.4KDetecting-AI.com · 108.1KDetecting-AI.com · 95.2KDetecting-AI.com · 57.4KGrammarly · 58.8MGrammarly · 54.5MGrammarly · 55.9MGrammarly · 55.7MGrammarly · 63.6MGrammarly · 58.3MGrammarly · 54MGrammarly · 45.8MGrammarly · 44.5MGrammarly · 49.3M10K100K1M10M100MGPTZero · 11MDetecting-AI.com · 211.3KDetecting-AI.com · 192.2KDetecting-AI.com · 121.5KDetecting-AI.com · 63.8KDetecting-AI.com · 64.6KDetecting-AI.com · 66.6KDetecting-AI.com · 69.4KDetecting-AI.com · 108.1KDetecting-AI.com · 95.2KDetecting-AI.com · 57.4KGrammarly · 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
Paid
Freemium
Starting price
$12.99per month · free tier available
$7per month · free tier available
$13.99per month
$12per month · free tier available
Free tier
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Free trial
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API access
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Plans
Free FreePremium $12.99/moProfessional $24.99/mo
Free FreeYearly $7/moMonthly $14/mo
Personal $13.99/moPro $74.99/moEnterprise CustomEducation Custom
Free FreePro Custom/moEnterprise Custom/mo
Capabilities input → output
Input
DocumentsText
DocumentsText
CodeDocumentsImagesTextVideo
Text
Output
DataText
Text
Data
Text
Skill level
Beginner-friendly
Beginner-friendly
Beginner-friendly
Beginner-friendly
Categories
AI Detection & SafetyAI DetectorAI Plagiarism Checker
AI Detection & SafetyAI Detector
AI Detection & SafetyAI DetectorAI Image DetectorAI Plagiarism Checker
AI Detection & SafetyWriting & ContentAI DetectorAI Grammar Checker+4 more
Tasks what each tool can do · 2 shared · core   partial
Tasks covered
7
7
10
6
Detection
Plagiarism detection
Content detection
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Grammar checking
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AI authorship detection
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Content authenticity verification
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Paraphrasing
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Writing
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Hallucination detection
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Proofreading
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APIs
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Bypassing AI content detection
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Content moderation
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Deepfake detection
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Essay grading
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Fact checking
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Image authenticity analysis
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Text analysis
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 1
▲ 0
▲ 0
▲ 1
Saves
0
0
0
0
Reviews
0
0
0
0
Prompts
0
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.