GPTZero vs Originality.AI vs Grammarly vs Turnitin

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

Your tool
GPTZero
vs
Competitor 1
Originality.AI
Competitor 2
Grammarly
Competitor 3
Turnitin
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 Originality.AI
originality.ai
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Competitor Grammarly
grammarly.com
Writing confidence that follows you everywhere
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Competitor Turnitin
turnitin.com
Turnitin is an academic integrity suite that schools, universities, and research organizations use to verify originality and deal with AI-written text.
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Traffic estimated monthly website traffic
Monthly visits
11Mvisits/mo
1.7Mvisits/mo
49.3Mvisits/mo
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MoM change
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▼ 3.1%
▲ 10.8%
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6-month growth
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-37.9%
-22.5%
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Global rank web
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#37,307
#688
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Avg. last 3 months
11M
1.8M
46.5M
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Bounce rate lower is better
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56%
40%
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Pages / visit
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2.5
7.8
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Visit duration
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2m 31s
4m 41s
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Traffic sources
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● Direct 86% · ● Referral 13%
● Direct 85% · ● Referral 9%
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GPTZeroOriginality.AIGrammarlyTurnitin
015.9M31.8M47.7M63.6MGPTZero · 11MOriginality.AI · 2.6MOriginality.AI · 2.5MOriginality.AI · 2.2MOriginality.AI · 2.2MOriginality.AI · 2.7MOriginality.AI · 2.5MOriginality.AI · 2.4MOriginality.AI · 1.9MOriginality.AI · 1.7MOriginality.AI · 1.7MGrammarly · 58.8MGrammarly · 54.5MGrammarly · 55.9MGrammarly · 55.7MGrammarly · 63.6MGrammarly · 58.3MGrammarly · 54MGrammarly · 45.8MGrammarly · 44.5MGrammarly · 49.3M1M10M100MGPTZero · 11MOriginality.AI · 2.6MOriginality.AI · 2.5MOriginality.AI · 2.2MOriginality.AI · 2.2MOriginality.AI · 2.7MOriginality.AI · 2.5MOriginality.AI · 2.4MOriginality.AI · 1.9MOriginality.AI · 1.7MOriginality.AI · 1.7MGrammarly · 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
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Starting price
$12.99per month · free tier available
$12.95per month · free tier available
$12per month · free tier available
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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
Basic FreePro $12.95/moEnterprise $136.58/mo
Free FreePro Custom/moEnterprise Custom/mo
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Capabilities input → output
Input
DocumentsText
DocumentsTextWeb pages
Text
DocumentsText
Output
DataText
DataText
Text
Data
Skill level
Beginner-friendly
Intermediate
Beginner-friendly
Beginner-friendly
Categories
AI Detection & SafetyAI DetectorAI Plagiarism Checker
AI Detection & SafetyAI DetectorAI Plagiarism Checker
AI Detection & SafetyWriting & ContentAI DetectorAI Grammar Checker+4 more
AI Detection & SafetyAI DetectorAI Plagiarism Checker
Tasks what each tool can do · 2 shared · core   partial
Tasks covered
7
8
6
8
Plagiarism detection
Detection
Content detection
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Content authenticity verification
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AI authorship detection
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Grammar checking
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Proofreading
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Paraphrasing
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Writing
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Exam cheating
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Hallucination detection
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Academic integrity advising
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Editorial fact checking
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Exam grading
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Fact checking
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SEO
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 1
▲ 0
▲ 1
▲ 0
Saves
0
0
0
0
Reviews
0
0
0
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Prompts
0
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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.