GPTZero records 23,246,989 monthly visits with +32.5% month-over-month growth and Freemium, Paid pricing. WriteTone records 7,461 monthly visits with -9.2% growth and Freemium pricing.
AI detection and writing verification built for schools and editors
Write in the right tone for every audience, every time
| Dimension / Metric | | |
|---|---|---|
| Official Domain | gptzero.me | writetone.com |
| Pricing Model | Freemium, Paid | Freemium |
| Monthly Visits | 23.25M (23,246,989) | 7.46K (7,461) |
| MoM Traffic Delta | +5.7M (+32.5%) | -756 (-9.2%) |
| Primary Market & Share | 🇺🇸 United States (54%) | 🇬🇧 United Kingdom (56.9%) |
| Direct Visits / mo | 7.53M | 3.57K |
| User Rating | 4.1 | 4.2 |
| 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.
Write in the right tone for every audience, every time
Rewrite any text in 90+ tones — academic, formal, confident, persuasive, casual, friendly, and more — with options to shorten, expand, or simplify while keeping your meaning.
Turn AI-generated drafts into text that reads more naturally, with a companion detector that flags which sentences look machine-written, why, and lets you download the report.
Proofread for grammar, spelling, and punctuation, and check text against online sources with detailed match reports and similarity scores.
Condense long documents into the points that matter, and keep to word or page limits without losing the argument.
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
Academic proofreading, plagiarism checking and AI-powered writing tools in one place
Academic proofreading, plagiarism checking and AI-powered writing tools in one place
SpecialistCombines AI detection with robust text humanization tools, but focuses more heavily on rewriting than pure verification.
SpecialistCombines AI detection with robust text humanization tools, but focuses more heavily on rewriting than pure verification.
Provides robust enterprise-grade content integrity and cross-media detection, but can be more expensive for individual users.
Provides robust enterprise-grade content integrity and cross-media detection, but can be more expensive for individual users.
Delivers strong fact-checking and comprehensive site-wide plagiarism audits, but has stricter paywalls than GPTZero.
Delivers strong fact-checking and comprehensive site-wide plagiarism audits, but has stricter paywalls than GPTZero.
SpecialistOne workspace to write, check and summarize
SpecialistOne workspace to write, check and summarize
Provides detailed sentence-level analysis for multilingual text, but lacks GPTZero's broad academic brand recognition.
Provides detailed sentence-level analysis for multilingual text, but lacks GPTZero's broad academic brand recognition.
Humanize AI text and detect it — one clean, all-in-one writing suite
Humanize AI text and detect it — one clean, all-in-one writing suite
Excels at scanning both text and images with high accuracy, but offers fewer free daily checks than GPTZero.
Excels at scanning both text and images with high accuracy, but offers fewer free daily checks than GPTZero.
AI detector that highlights evidence, not just a score
AI detector that highlights evidence, not just a score
Free AI paraphraser with seven rewriting modes
Free AI paraphraser with seven rewriting modes
