O
OAI content detection, plagiarism and fact checking for publishers and educators
Free, from $12.95/mo
GPTZero vs MentoMind
Pricing, features, platforms and who each one suits — side by side.
G
Choose GPTZero if…
- you want a free plan to start with
- you need an API to build on
- you work on Chrome
- you're in its core audience: teachers and educators, students
M
Choose MentoMind if…
- you want to trial it before paying
- you're in its core audience: tutors and tutoring businesses, teachers
Side by side
Feature GPTZero MentoMind
Pricing modelFreemiumFree trial
Starting price—$4.08/mo
Free plan
Free trial
API
Open source
Data retention—Personal data kept as long as needed to provide services, plus reasonable time
Security and complianceSOC 2 Type II, CCPA, GDPRGDPR
Plagiarism checker—
Writing replay—
Docs/LMS integration—
PlatformsWeb, Chrome, APIWeb
CategoryAI Detection & HumanizersTools for Teachers
CompanyGPTZero LLCInnotrail, Inc.
Based inUnited StatesUnited States
Founded2023—
Part of——
Key features
G GPTZero
- Detects text from ChatGPT, Claude and Gemini
- Highlights passages likely to be AI-generated
- Writing Replay shows how a document was typed
- Plagiarism checker for unattributed content
- Hallucination detector
- Grammar check and writing feedback
- Google Docs, Google Classroom, Canvas and Zapier integrations
- API with code samples in 17 languages
M MentoMind
- White-label branding with your own domain, logo and colors
- SAT, ACT, HSPT, AP Math and PSSA course libraries
- Question bank built from PDFs with question generation
- Auto-grading with item analysis
- Skill maps and personalized practice plans
- 24/7 guided help with step hints
- Real-time student and parent reporting
- Payment collection and coupons
Plans and prices
From each vendor's site. Prices change — confirm before buying.
GPTZero
FreeFree
Professional TeamPrice not shown on page
MentoMind
Student Starter$49/year (about $4.08/mo)
Student Elite Performer$24.99/mo, $59.99 for 3 months, or $149.99/year
Academy Starter$49/mo (20% off billed annually)
Academy Growth$149/mo (20% off billed annually)
Enterprise / InstitutionsCustom
Strengths and limitations
GPTZero
- Free tier available to get started
- Integrates with Google Docs, Google Classroom, Canvas and Zapier
- Fully supports five languages
- States SOC 2 Type II, FERPA, GDPR and CCPA compliance
- Individual plan prices could not be read from the pricing page
- Team plan requires at least 2 seats and payment by card only
- No native mobile apps mentioned
MentoMind
- Large question banks, e.g. 3,500+ SAT questions and 11 adaptive tests
- Student plans start at $49/year
- White-label branding on academy plans
- Can get started free with no credit card
- Academy plans carry a one-time $500 white-label setup fee
- Only a web app is listed
- Enterprise and institution pricing requires contacting sales
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AI writing assistant for grammar, tone, rewrites and AI-text detection
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HReadability editor that flags wordy, unclear writing and offers AI fixes
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H
From $8.33/mo
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Grammar, spelling and style checker for 30+ languages, with AI rephrasing
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Built from each vendor's public website; we haven't tested them hands-on. Editorial policy