Scribbr AI Detector vs ZeroGPT Plus vs GPTZero vs Undetectable AI

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

Your tool
Scribbr AI Detector
vs
Competitor 1
ZeroGPT Plus
Competitor 2
GPTZero
Competitor 3
Undetectable AI
Compare
4 tools · best value per row highlighted
Your tool Scribbr AI Detector
scribbr.com
Scribbr AI Detector is a free checker that estimates whether a piece of writing was produced by an AI model.
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Competitor ZeroGPT Plus
zerogpt.plus
ZeroGPT Plus can detect if text came from AI with high accuracy
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Competitor 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 Undetectable AI
undetectable.ai
Undetectable AI bundles an AI text detector, an AI humanizer and an AI image detector into one account.
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Traffic estimated monthly website traffic
Monthly visits
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92.5Kvisits/mo
11Mvisits/mo
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MoM change
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▼ 14.1%
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6-month growth
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+100.2%
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Global rank web
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#383,365
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Avg. last 3 months
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85.7K
11M
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Bounce rate lower is better
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38%
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Pages / visit
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1.9
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Visit duration
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21s
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Traffic sources
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● Direct 92% · ● Referral 4%
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Scribbr AI DetectorZeroGPT PlusGPTZeroUndetectable AI
02.8M5.5M8.3M11MZeroGPT Plus · 107.3KZeroGPT Plus · 132.4KZeroGPT Plus · 53.1KZeroGPT Plus · 45.8KZeroGPT Plus · 46.2KZeroGPT Plus · 34.6KZeroGPT Plus · 24.8KZeroGPT Plus · 56.8KZeroGPT Plus · 107.7KZeroGPT Plus · 92.5KGPTZero · 11M10K100K1M10M100MZeroGPT Plus · 107.3KZeroGPT Plus · 132.4KZeroGPT Plus · 53.1KZeroGPT Plus · 45.8KZeroGPT Plus · 46.2KZeroGPT Plus · 34.6KZeroGPT Plus · 24.8KZeroGPT Plus · 56.8KZeroGPT Plus · 107.7KZeroGPT Plus · 92.5KGPTZero · 11MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Free
Freemium
Freemium
Paid
Starting price
Free
$9.9per month · free tier available
$12.99per month · free tier available
$5per month
Free tier
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Free trial
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API access
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Plans
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Free FreePremium $12.99/moProfessional $24.99/mo
10K words $5/mo20K words $9.50/mo35K words $15.75/mo50K words $21.25/mo+1 more
Capabilities input → output
Input
Text
DocumentsText
DocumentsText
DocumentsImagesText
Output
Data
Text
DataText
DataText
Skill level
Beginner-friendly
Beginner-friendly
Beginner-friendly
Beginner-friendly
Categories
AI Detection & SafetyAI DetectorAI Plagiarism CheckerHumanizer AI
AI Detection & SafetyAI DetectorAI Plagiarism CheckerHumanizer AI
AI Detection & SafetyAI DetectorAI Plagiarism Checker
AI Detection & SafetyAI DetectorAI Image DetectorHumanizer AI
Tasks what each tool can do · 3 shared · core   partial
Tasks covered
3
4
7
10
AI authorship detection
Detection
Content detection
Plagiarism detection
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Text humanization
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Hallucination detection
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Humanizing AI text
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Image authenticity analysis
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Undetectable content writing
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Audio detection
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Content authenticity verification
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Edited image detection
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Grammar checking
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Text enhancement
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
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▲ 1
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Saves
0
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Reviews
0
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Prompts
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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.