Citely records 62,271 monthly visits with -6.1% month-over-month growth and Freemium pricing. GPTZero records 23,246,989 monthly visits with +32.5% growth and Freemium, Paid pricing.
Verify every reference against real academic databases — and find the sources you're missing
AI detection and writing verification built for schools and editors
| Dimension / Metric | | |
|---|---|---|
| Official Domain | citely.ai | gptzero.me |
| Pricing Model | Freemium | Freemium, Paid |
| Monthly Visits | 62.27K (62,271) | 23.25M (23,246,989) |
| MoM Traffic Delta | -4.06K (-6.1%) | +5.7M (+32.5%) |
| Primary Market & Share | 🇺🇸 United States (25.9%) | 🇺🇸 United States (54%) |
| Direct Visits / mo | 9.64K | 7.53M |
| User Rating | 4.2 | 4.1 |
| Supported Platforms | Website | Website |
Verify every reference against real academic databases — and find the sources you're missing
Paste a claim or paragraph and Citely returns matching academic papers with verified metadata, ready to cite in APA, MLA, or Chicago style.
Submit a reference list and Citely tests each entry against scholarly databases, marking entries that cannot be confirmed or that point to the wrong work.
Citely targets the specific errors AI models make when inventing references, including chimera citations, invented DOIs, and citations that drift across years.
Checks run against CrossRef, PubMed, arXiv, and OpenAlex, so verification reflects real indexed scholarship rather than a single narrow database.
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.
Offers broad multilingual AI detection and text humanization, but lacks GPTZero's detailed deep-scan reporting features.
Offers broad multilingual AI detection and text humanization, but lacks GPTZero's detailed deep-scan reporting features.
SpecialistCombines AI detection with professional human proofreading and citation tools, but functions primarily as an editing service.
SpecialistCombines AI detection with professional human proofreading and citation tools, but functions primarily as an editing service.
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.
The AI workspace where researchers read, write, and cite with every claim traceable to its source
The AI workspace where researchers read, write, and cite with every claim traceable to its source
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.
SpecialistAI answers grounded in 300M+ scholarly full texts
SpecialistAI answers grounded in 300M+ scholarly full texts
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
SpecialistTailors detection specifically for academic institutions and LMS integrations, but is less optimized for casual web users.
SpecialistTailors detection specifically for academic institutions and LMS integrations, but is less optimized for casual web users.
AI academic writer with real sources and automatic citations
AI academic writer with real sources and automatic citations
