Copyleaks vs GPTZero vs QuillBot vs Slop Or Not AI

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

Your tool
Copyleaks
vs
Competitor 1
GPTZero
Competitor 2
QuillBot
Competitor 3
Slop Or Not AI
Compare
4 tools · best value per row highlighted
Your tool 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 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 QuillBot
quillbot.com
Rephrase until it sounds right
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Competitor Slop Or Not AI
slopornot.ai
AI detectors slam you with word limits
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Traffic estimated monthly website traffic
Monthly visits
—
11Mvisits/mo
31.4Mvisits/mo
23Kvisits/mo
MoM change
—
—
▼ 8.4%
▲ 116.9%
6-month growth
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-27.9%
+606.3%
Global rank web
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#1,318
#1,296,501
Avg. last 3 months
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11M
36.7M
12.9K
Bounce rate lower is better
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46%
40%
Pages / visit
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—
5.5
1.6
Visit duration
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2m 52s
9s
Traffic sources
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● Direct 76% · ● Referral 22%
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CopyleaksGPTZeroQuillBotSlop Or Not AI
014.9M29.9M44.8M59.8MGPTZero · 11MQuillBot · 59.8MQuillBot · 47MQuillBot · 42.9MQuillBot · 43.5MQuillBot · 49.6MQuillBot · 48.1MQuillBot · 44.6MQuillBot · 34.3MQuillBot · 31.4MSlop Or Not AI · 1.6KSlop Or Not AI · 446Slop Or Not AI · 2.5KSlop Or Not AI · 3.3KSlop Or Not AI · 1.8KSlop Or Not AI · 5.3KSlop Or Not AI · 5.2KSlop Or Not AI · 10.6KSlop Or Not AI · 23K1001K10K100K1M10M100MGPTZero · 11MQuillBot · 59.8MQuillBot · 47MQuillBot · 42.9MQuillBot · 43.5MQuillBot · 49.6MQuillBot · 48.1MQuillBot · 44.6MQuillBot · 34.3MQuillBot · 31.4MSlop Or Not AI · 1.6KSlop Or Not AI · 446Slop Or Not AI · 2.5KSlop Or Not AI · 3.3KSlop Or Not AI · 1.8KSlop Or Not AI · 5.3KSlop Or Not AI · 5.2KSlop Or Not AI · 10.6KSlop Or Not AI · 23KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Paid
Freemium
Freemium
Paid
Starting price
$13.99per month
$12.99per month · free tier available
$19.95per 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
Personal $13.99/moPro $74.99/moEnterprise CustomEducation Custom
Free FreePremium $12.99/moProfessional $24.99/mo
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Capabilities input → output
Input
VideoTextImagesDocumentsCode
DocumentsText
DocumentsTextImages
TextImages
Output
Data
TextData
TextSlidesImagesDocuments
Data
Skill level
Beginner-friendly
Beginner-friendly
Beginner-friendly
Beginner-friendly
Categories
AI Detection & SafetyAI DetectorAI Image DetectorAI Plagiarism Checker
AI Detection & SafetyAI DetectorAI Plagiarism Checker
AI Detection & SafetyWriting & ContentAI DetectorAI Grammar Checker+5 more
AI Detection & SafetyAI DetectorAI Image Detector
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
10
7
9
5
Detection
Content detection
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Plagiarism 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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Deepfake detection
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Image authenticity analysis
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Paraphrasing
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Hallucination detection
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Summarizing
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Writing
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APIs
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Content moderation
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Document summarization
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Proofreading
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Text cleaning
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Undetectable content writing
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 1
▲ 2
▲ 0
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.