GPTZero records 23,246,989 monthly visits with +32.5% month-over-month growth and Freemium, Paid pricing. Scribbr records 7,530,803 monthly visits with +14.6% growth and Freemium pricing.
AI detection and writing verification built for schools and editors
Academic proofreading, plagiarism checking and AI-powered writing tools in one place
| Dimension / Metric | | |
|---|---|---|
| Official Domain | gptzero.me | scribbr.com |
| Pricing Model | Freemium, Paid | Freemium |
| Monthly Visits | 23.25M (23,246,989) | 7.53M (7,530,803) |
| MoM Traffic Delta | +5.7M (+32.5%) | +957.01K (+14.6%) |
| Primary Market & Share | 🇺🇸 United States (54%) | 🇺🇸 United States (32.1%) |
| Direct Visits / mo | 7.53M | 2.47M |
| User Rating | 4.1 | 4.4 |
| Supported Platforms | Website | Website |
AI detection and writing verification built for schools and editors
Paste text or upload a document and get an overall AI probability score plus a sentence-by-sentence breakdown of which parts look machine-written.
Flags AI text from major model families including ChatGPT, Gemini, Claude, Llama, and others, rather than training for a single model.
A Chrome extension and Google Docs add-on bring scanning into Gmail, Docs, Classroom, and other surfaces you already work in.
Checks content for copied passages from outside sources so you can separate AI-generation questions from originality questions.
Academic proofreading, plagiarism checking and AI-powered writing tools in one place
A vetted academic editor reviews your paper within hours and returns tracked changes, comments and an explanation letter.
Scans your document against a large web and publication database to surface potentially unoriginal passages before submission.
Flags text likely generated by large language models and offers a rewriting mode aimed at making AI-assisted drafts sound more natural.
Creates and verifies references in APA, MLA, Chicago, AMA, IEEE and ACS styles from a URL, DOI or title search.
High-efficiency open-weight and hosted reasoning AI powered by DeepSeek-V4 and R1 at ultra-low token costs.
High-efficiency open-weight and hosted reasoning AI powered by DeepSeek-V4 and R1 at ultra-low token costs.
Enterprise-grade neural machine translation, AI writing refinement, and real-time voice translation across thirty-plus global languages.
Enterprise-grade neural machine translation, AI writing refinement, and real-time voice translation across thirty-plus global languages.
Cross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides.
Cross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides.
Paraphrase, proofread and summarize text with an AI writing workspace
Paraphrase, proofread and summarize text with an AI writing workspace
AI content detection and a full writing toolkit in one place
AI content detection and a full writing toolkit in one place
A friendly Vietnamese AI study assistant for homework, images and everyday questions
Free AI checker with probability scores and sentence-level signals
Free AI checker with probability scores and sentence-level signals
Free online design tool with AI-powered templates and photo editing
Free online design tool with AI-powered templates and photo editing
Privacy-first bot detection and fraud prevention for the web
All-in-one AI study tool for homework help, exam prep, notes, and flashcards
All-in-one AI study tool for homework help, exam prep, notes, and flashcards
All-in-one AI assistant across web, browser, desktop and mobile
All-in-one AI assistant across web, browser, desktop and mobile
Targeted research audiences with AI-verified data quality
Targeted research audiences with AI-verified data quality
