GPTZero records 23,246,989 monthly visits with +32.5% month-over-month growth and Freemium, Paid pricing. Surface Labs records 7,795 monthly visits with +10.3% growth and Contact for Pricing pricing.
AI detection and writing verification built for schools and editors
Marketing superintelligence that turns revenue context into better campaigns
| Dimension / Metric | | |
|---|---|---|
| Official Domain | gptzero.me | withsurface.com |
| Pricing Model | Freemium, Paid | Contact for Pricing |
| Monthly Visits | 23.25M (23,246,989) | 7.8K (7,795) |
| MoM Traffic Delta | +5.7M (+32.5%) | +731 (+10.3%) |
| Primary Market & Share | 🇺🇸 United States (54%) | 🇮🇳 India (50.4%) |
| Direct Visits / mo | 7.53M | 3.12K |
| 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.
Marketing superintelligence that turns revenue context into better campaigns
Bring buyer signals, campaign history, product context and CRM outcomes into one workspace your agents can reason over.
Deploy research, content, SEO/AEO and campaign agents that research, create, personalize and execute coordinated work across channels.
Run real-time enrichment, AI lead scoring and evidence-backed qualification, then route qualified buyers to the right rep in real time.
Convert more visitors with dynamic lead forms that support partial-response capture, plus traffic intelligence and intelligent scheduling.
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.
Free / Open-sourceAI-assisted email and SMS marketing that turns audiences into customers
Free / Open-sourceAI-assisted email and SMS marketing that turns audiences into customers
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.
Free / Open-sourceKnow what's actually working in your ecommerce business — and act on it instantly.
Free / Open-sourceKnow what's actually working in your ecommerce business — and act on it instantly.
Free / Open-sourceBuild GTM systems that turn data into revenue
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.
Free / Open-sourceEmail marketing with AI send-time optimization to lift opens
Free / Open-sourceEmail marketing with AI send-time optimization to lift opens
AI marketing agents that run your growth while you stay in control
AI marketing agents that run your growth while you stay in control
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.
