GPTZero vs ZeroGPT vs ZeroGPT Plus vs Undetectable AI
Which one fits you in 2026? Traffic, pricing, input → output, tasks and community side by side.
Your tool
GPTZero
vs
GPTZero
Competitor 1
ZeroGPT
ZeroGPT
Competitor 2
ZeroGPT Plus
ZeroGPT Plus
Competitor 3
Undetectable AI
Undetectable AICompare
4 tools · best value per row highlighted
Your tool
GPTZero
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
Competitor
ZeroGPT Plus
ZeroGPT Plus
zerogpt.plus
ZeroGPT Plus can detect if text came from AI with high accuracy
Competitor
Undetectable AI
Undetectable AI
undetectable.ai
Undetectable AI bundles an AI text detector, an AI humanizer and an AI image detector into one account.
Traffic estimated monthly website traffic
Monthly visits
11Mvisits/mo
20.5Mvisits/mo
92.5Kvisits/mo
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MoM change
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▲ 5.1%
▼ 14.1%
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6-month growth
—
-29.5%
+100.2%
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Global rank web
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#3,675
#383,365
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Avg. last 3 months
11M
20.5M
85.7K
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Bounce rate lower is better
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60%
38%
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Pages / visit
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2.2
1.9
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Visit duration
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2m 53s
21s
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Traffic sources
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● Direct 90% · ● Referral 9%
● Direct 92% · ● Referral 4%
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GPTZeroZeroGPTZeroGPT PlusUndetectable AI
Pricing
Model
Freemium
Paid
Freemium
Paid
Starting price
$12.99per month · free tier available
$7.99per month
$9.9per month · free tier available
$5per month
Free tier
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Free trial
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–
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API access
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Plans
Free FreePremium $12.99/moProfessional $24.99/mo
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10K words $5/mo20K words $9.50/mo35K words $15.75/mo50K words $21.25/mo+1 more
Capabilities input → output
Input
DocumentsText
VideoTextImagesDocuments
DocumentsText
TextImagesDocuments
Output
TextData
Text
Text
TextData
Skill level
Beginner-friendly
Beginner-friendly
Beginner-friendly
Beginner-friendly
Categories
Tasks what each tool can do · 1 shared · core partial
Tasks covered
7
2
2
3
Detection
Plagiarism detection
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AI authorship detection
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Content detection
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–
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Hallucination detection
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–
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Image authenticity analysis
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–
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Audio detection
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Content authenticity verification
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–
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Grammar checking
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–
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Writing enhancement
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–
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 1
▲ 0
▲ 0
▲ 0
Saves
0
0
0
0
Reviews
0
0
0
0
Prompts
0
0
0
0
Verified listing
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–
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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.