GPTZero records 23,246,989 monthly visits with +32.5% month-over-month growth and Freemium, Paid pricing. IzzyAI records 0 monthly visits with -100% growth and Freemium, Free pricing.
AI detection and writing verification built for schools and editors
AI speech-therapy companion for practice between sessions
| Dimension / Metric | | |
|---|---|---|
| Official Domain | gptzero.me | izzyai.com |
| Pricing Model | Freemium, Paid | Freemium, Free |
| Monthly Visits | 23.25M (23,246,989) | 0 (0) |
| MoM Traffic Delta | +5.7M (+32.5%) | -2.78K (-100%) |
| Primary Market & Share | 🇺🇸 United States (54%) | 🌐 Global (—) |
| Direct Visits / mo | 7.53M | 0 |
| User Rating | 4.1 | 3.9 |
| 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.
AI speech-therapy companion for practice between sessions
A conversational avatar leads practice sessions, so users can rehearse speaking goals at any time of day without waiting for a clinician.
The engine listens as the user speaks and evaluates pronunciation, fluency and articulation on the spot.
Camera and microphone signals are used together to read delivery cues such as mouth movement and voicing during exercises.
Session results are logged and summarised so users, parents or therapists can see improvement and sticking points over time.
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.
SpecialistAI English speaking coach with instant pronunciation feedback
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.
SpecialistLearn a new language by talking to lifelike AI tutors
SpecialistLearn a new language by talking to lifelike AI tutors
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.
SpecialistAccent training with Hollywood coaches and real-time speech AI
SpecialistAccent training with Hollywood coaches and real-time speech AI
SpecialistAI Quran companion for recitation, memorization, and real-time mistake detection
SpecialistAI Quran companion for recitation, memorization, and real-time mistake detection
AI detector that highlights evidence, not just a score
AI detector that highlights evidence, not just a score
