GPTZero vs Grammarly vs QuillBot vs ZeroGPT Plus
Which one fits you in 2026? Traffic, pricing, input → output, tasks and community side by side.
Your tool
GPTZero
vs GPTZero
Competitor 1
Grammarly
Grammarly
Competitor 2
QuillBot
QuillBot
Competitor 3
ZeroGPT Plus
ZeroGPT PlusCompare
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
Traffic estimated monthly website traffic
Monthly visits
11Mvisits/mo
49.3Mvisits/mo
31.4Mvisits/mo
92.5Kvisits/mo
MoM change
—
▲ 10.8%
▼ 8.4%
▼ 14.1%
6-month growth
—
-22.5%
-27.9%
+100.2%
Global rank web
—
#688
#1,318
#383,365
Avg. last 3 months
11M
46.5M
36.7M
85.7K
Bounce rate lower is better
—
40%
46%
38%
Pages / visit
—
7.8
5.5
1.9
Visit duration
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4m 41s
2m 52s
21s
Traffic sources
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● Direct 85% · ● Referral 9%
● Direct 76% · ● Referral 22%
● Direct 92% · ● Referral 4%
GPTZeroGrammarlyQuillBotZeroGPT Plus
Pricing
Model
Freemium
Freemium
Freemium
Freemium
Starting price
$12.99per month · free tier available
$12per month · free tier available
$19.95per month · free tier available
$9.9per month · free tier available
Free tier
Free trial
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–
–
API access
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–
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Plans
Free FreePremium $12.99/moProfessional $24.99/mo
Free FreePro Custom/moEnterprise Custom/mo
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Capabilities input → output
Input
DocumentsText
Text
DocumentsImagesText
DocumentsText
Output
DataText
Text
DocumentsImagesSlidesText
Text
Skill level
Beginner-friendly
Beginner-friendly
Beginner-friendly
Beginner-friendly
Categories
Tasks what each tool can do · 1 shared · core partial
Tasks covered
7
6
9
2
Detection
Grammar checking
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Plagiarism detection
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Paraphrasing
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–
Writing
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–
Proofreading
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–
AI authorship detection
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–
–
Content detection
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–
–
Hallucination detection
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–
–
Summarizing
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–
–
Content authenticity verification
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–
–
Document summarization
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–
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Undetectable content writing
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–
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Writing enhancement
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–
–
Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 1
▲ 1
▲ 2
▲ 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.