GPTZero vs Grammarly vs QuillBot vs Dechecker AI

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

Your tool
GPTZero
vs
Competitor 1
Grammarly
Competitor 2
QuillBot
Competitor 3
Dechecker AI
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
Remove
Competitor Grammarly
grammarly.com
Writing confidence that follows you everywhere
Make main Remove
Competitor QuillBot
quillbot.com
Rephrase until it sounds right
Make main Remove
Competitor Dechecker AI
dechecker.ai
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
11Mvisits/mo
49.3Mvisits/mo
31.4Mvisits/mo
99.7Kvisits/mo
MoM change
—
▲ 10.8%
▼ 8.4%
▼ 17.6%
6-month growth
—
-22.5%
-27.9%
-73.5%
Global rank web
—
#688
#1,318
#387,035
Avg. last 3 months
11M
46.5M
36.7M
153.8K
Bounce rate lower is better
—
40%
46%
43%
Pages / visit
—
7.8
5.5
1.5
Visit duration
—
4m 41s
2m 52s
24s
Traffic sources
—
● Direct 85% · ● Referral 9%
● Direct 76% · ● Referral 22%
● Direct 82% · ● Referral 17%
GPTZeroGrammarlyQuillBotDechecker AI
015.9M31.8M47.7M63.6MGPTZero · 11MGrammarly · 58.8MGrammarly · 54.5MGrammarly · 55.9MGrammarly · 55.7MGrammarly · 63.6MGrammarly · 58.3MGrammarly · 54MGrammarly · 45.8MGrammarly · 44.5MGrammarly · 49.3MQuillBot · 59.8MQuillBot · 47MQuillBot · 42.9MQuillBot · 43.5MQuillBot · 49.6MQuillBot · 48.1MQuillBot · 44.6MQuillBot · 34.3MQuillBot · 31.4MDechecker AI · 766Dechecker AI · 24.5KDechecker AI · 170KDechecker AI · 302.1KDechecker AI · 376.1KDechecker AI · 423.6KDechecker AI · 410.8KDechecker AI · 240.8KDechecker AI · 121KDechecker AI · 99.7K1001K10K100K1M10M100MGPTZero · 11MGrammarly · 58.8MGrammarly · 54.5MGrammarly · 55.9MGrammarly · 55.7MGrammarly · 63.6MGrammarly · 58.3MGrammarly · 54MGrammarly · 45.8MGrammarly · 44.5MGrammarly · 49.3MQuillBot · 59.8MQuillBot · 47MQuillBot · 42.9MQuillBot · 43.5MQuillBot · 49.6MQuillBot · 48.1MQuillBot · 44.6MQuillBot · 34.3MQuillBot · 31.4MDechecker AI · 766Dechecker AI · 24.5KDechecker AI · 170KDechecker AI · 302.1KDechecker AI · 376.1KDechecker AI · 423.6KDechecker AI · 410.8KDechecker AI · 240.8KDechecker AI · 121KDechecker AI · 99.7KNov '25DecJan '26FebMarAprMayJunJulAug
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
$5per month · free tier available
Free tier
Free trial
–
–
–
API access
–
–
–
Plans
Free FreePremium $12.99/moProfessional $24.99/mo
Free FreePro Custom/moEnterprise Custom/mo
—
Free Custom/moPlan 2 $5/moPlan 3 $9/moPlan 4 $19/mo+1 more
Capabilities input → output
Input
DocumentsText
Text
DocumentsImagesText
DocumentsText
Output
DataText
Text
DocumentsImagesSlidesText
Text
Skill level
Beginner-friendly
Beginner-friendly
Beginner-friendly
Beginner-friendly
Categories
AI Detection & SafetyAI DetectorAI Plagiarism Checker
AI Detection & SafetyWriting & ContentAI DetectorAI Grammar Checker+4 more
AI Detection & SafetyWriting & ContentAI DetectorAI Grammar Checker+5 more
AI Detection & SafetyAI DetectorAI Plagiarism CheckerHumanizer AI
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
7
6
9
1
Detection
Grammar checking
–
Plagiarism detection
–
Paraphrasing
–
–
Writing
–
–
Proofreading
–
–
AI authorship detection
–
–
–
Content detection
–
–
–
Hallucination detection
–
–
–
Summarizing
–
–
–
Content authenticity verification
–
–
–
Document summarization
–
–
–
Undetectable content writing
–
–
–
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
–
–
–
–

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.