O
OAI content detection, plagiarism and fact checking for publishers and educators
Free, from $12.95/mo
GPTZero vs Hemingway Editor
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
H
Choose Hemingway Editor if…
- you want to trial it before paying
- you work on macOS, Windows
- you're in its core audience: bloggers and content writers, students
Side by side
Feature GPTZero Hemingway Editor
Pricing modelFreemiumFree trial
Starting price—$8.33/mo
Free plan
Free trial
API
Open source
Trains AI on your content—No
Data retention—Eligible account records deleted within 30 days of deletion instruction; no automatic retention of editor writing
Security and complianceSOC 2 Type II, CCPA, GDPR—
Plagiarism checker—
Writing replay—
Docs/LMS integration—
PlatformsWeb, Chrome, APIWeb, macOS, Windows
CategoryAI Detection & HumanizersGrammar & Proofreading
CompanyGPTZero LLCBoondoggle Studio, LLC
Based inUnited 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
H
- Highlights wordy sentences, adverbs and passive voice
- Readability grade-level scoring
- AI sentence rewrites and tone adjustments
- Unlimited advanced grammar fixes
- AI synonym suggestions
- Style guide and target reading level
- Import .docx; export to text, PDF or Word
- One-click WordPress publishing in desktop app
Plans and prices
From each vendor's site. Prices change — confirm before buying.
GPTZero
FreeFree
Professional TeamPrice not shown on page
Hemingway Editor
Individual 5K$8.33/mo ($100 billed annually)
Individual 10K$12.50/mo ($150 billed annually)
Team 10K$12.50/user/mo ($150 billed annually)
EnterpriseCustom
Hemingway Editor Classic (desktop)$19.99
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
Hemingway Editor
- 2-week free trial with no credit card required
- Desktop app is a one-time $19.99 purchase and works offline
- Free web tools for grammar, paraphrasing and readability
- Team plan supports up to 50 users with admin controls
- Desktop Classic app does not include AI features
- AI usage is capped by monthly sentence allowances
- No mobile app listed
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Built from each vendor's public website; we haven't tested them hands-on. Editorial policy