Offers broad multilingual AI detection and text humanization, but lacks GPTZero's detailed deep-scan reporting features.
GPTZero records 23,246,989 monthly visits with +32.5% month-over-month growth and Freemium, Paid pricing. Lkin records 328 monthly visits with -91.5% growth and Freemium pricing.

Manage every website you own from one workspace
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | gptzero.me | lkin.io |
| Pricing Model | Freemium, Paid | Freemium |
| Monthly Visits | 23.25M (23,246,989) | 328 (328) |
| MoM Traffic Delta | +5.7M (+32.5%) |
| -3.51K (-91.5%) |
| Primary Market & Share | 🇺🇸 United States (54%) | 🌐 Global (—) |
|---|
| Direct Visits / mo | 7.53M | 127 |
|---|
| User Rating | 4.1 | 3.6 |
|---|
| 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.

Manage every website you own from one workspace
Group every site you manage into one workspace with status at a glance, instead of bookmarking separate admin logins and analytics dashboards.
Reach the CMS or admin panel of stored sites without hunting for credentials, driven partly by a browser extension that keeps access one click away.
Run PageSpeed and website diagnostics from the same place you manage sites, so performance and health issues surface alongside the site they belong to.
An AI advisor reviews your site data and diagnostics to suggest improvements, helping translate technical findings into concrete next steps.
Offers broad multilingual AI detection and text humanization, but lacks GPTZero's detailed deep-scan reporting features.

AI-powered YouTube ideas, SEO scoring and coaching that grows your channel faster

SpecialistCombines AI detection with professional human proofreading and citation tools, but functions primarily as an editing service.
#3SpecialistCombines 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.


Delivers strong fact-checking and comprehensive site-wide plagiarism audits, but has stricter paywalls than GPTZero.

The composable content platform for structured, multi-channel, AI-assisted publishing

Provides detailed sentence-level analysis for multilingual text, but lacks GPTZero's broad academic brand recognition.
150+ free online SEO tools and AI writing assistants in one place

An extendable launcher that puts your tools, AI, and automations one keystroke away

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
Offers broad multilingual AI detection and text humanization, but lacks GPTZero's detailed deep-scan reporting features.
AI-powered YouTube ideas, SEO scoring and coaching that grows your channel faster
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.
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.
The composable content platform for structured, multi-channel, AI-assisted publishing
Provides detailed sentence-level analysis for multilingual text, but lacks GPTZero's broad academic brand recognition.
150+ free online SEO tools and AI writing assistants in one place
An extendable launcher that puts your tools, AI, and automations one keystroke away
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