Mask AI Detector is a web tool for checking text for AI-generated content. It analyzes a scan with six detection engines, returns sentence-level results, and highlights sentences it considers suspicious. Each scan can contain up to 2,500 words. Sample text buttons let users try examples associated with ChatGPT, Claude, Gemini, and Grok. The detector sits within Mask AI’s broader set of writing tools, which includes an AI humanizer, AI writer, plagiarism checks, and citation verification. The humanizer offers Light, Medium, and Aggressive rewrite levels, with a way to compare the revised text against the original. Mask AI describes uses such as editing AI-assisted reports, proposals, and blog posts, and reviewing work from freelancers and contributors. Mask AI lists a Free plan and an Unlimited plan. Unlimited costs 10.99 USD per month and covers unlimited humanizations, plagiarism removals, AI content detection, plagiarism checks, and content generations, subject to fair-use terms. The Free plan has limited AI features, 600 AI humanization words, and 250 words per generation; its billing detail says $131.88 / year after a 7 day trial. The product is web-based and has no browser extension.
Who it is for
Mask AI may suit people who want sentence-level AI detection alongside rewriting, plagiarism checks, and citation verification in a web-based writing toolkit. Its described uses include editing AI-assisted reports, proposals, and blog posts, or reviewing work from freelancers and contributors.
What is good
- Analyzes text with six detection engines.
- Highlights suspicious sentences and gives sentence-level results.
- Supports scans of up to 2,500 words.
- Humanizer includes three rewrite levels and original-text comparison.
- Unlimited plan includes detection, plagiarism checks, and content generations.
What to know first
- Scans are limited to 2,500 words.
- The Free plan has limited AI features and word quotas.
- Unlimited is subject to fair-use terms.
- No browser extension is available.
Verdict
Choose Mask AI if you want web-based AI detection with sentence highlights and a wider set of writing tools. The Unlimited plan adds unlimited detection and other listed tools for 10.99 USD per month, subject to fair-use terms. Look elsewhere if you need a browser extension or scans longer than 2,500 words.
Get started with Mask AI Detector
- Open https://www.mask.ai/ai-detector in a web browser.
- Choose the Free plan or the Unlimited plan.
- Use the detector’s sample text buttons or provide text for a scan of up to 2,500 words.
- Review the sentence-level results and highlighted sentences.
What the free plan stops at
The Free plan includes 600 AI humanization words, 250 words per generation, and limited AI features. Its billing detail says $131.88 / year after a 7 day trial. Detector scans are limited to 2,500 words; the Unlimited plan is subject to fair-use terms.
Questions about Mask AI Detector
What does Mask AI Detector do?
It checks text for AI-generated content using six detection engines, then provides sentence-level results and highlights suspicious sentences.
How much text can it scan?
The detector page shows a limit of 2,500 words per scan.
Is there a free plan?
Yes. The Free plan includes 600 AI humanization words, 250 words per generation, and limited AI features. Its billing detail says $131.88 / year after a 7 day trial.
How much does Unlimited cost?
Unlimited costs 10.99 USD per month and includes unlimited humanizations, plagiarism removals, AI content detection, plagiarism checks, and content generations, subject to fair-use terms.
Which platforms are available?
Mask AI is available on the web and has no browser extension.
What information does Mask AI collect and where is it processed?
Its privacy policy says it collects account details, device information, and usage information. It says its servers are in the United States and information may be transferred, stored, and processed there; payment data is stored by Stripe, Inc.
Mask AI Detector plans and pricing
All plansCompared on AI content detectors
- Free plan
- No
- Paid from
- $10.99/mo
- Word limit
- 2,500 words
- Browser extension
- No
