Undetectable AI is a freemium platform that combines AI detection, AI text humanizing, and media authenticity checks for students, writers, and professionals.
About
Undetectable AI is a web platform built around two related problems: knowing whether a piece of text will be flagged as AI-generated, and rewriting that text so it reads more naturally. It bundles an AI detector, an AI humanizer, and a set of related creation and detection tools in one place, so users do not have to move between separate applications. The company states that more than 24 million people have used the service.
The core workflow works in two steps. First, the AI detector analyzes pasted or uploaded text and points to the specific sentences likely to be flagged. Second, the humanizer rewrites those sections by varying sentence structure, adjusting vocabulary, and changing tone so the result reads as human-written. Beyond text, the platform offers an AI image detector and a Chrome extension that brings the tools into Google Docs, Gmail, and other pages. The service is operated by Undetectable Inc., based in Sheridan, Wyoming.
Key Features
Pricing & Fees
- Pricing: Paid plans start at $9.99/month discounted to $5.00/month (10,000 words, billed annually at $60.00), with tiers at $19.00 → $9.50/month (20K words), $31.00 → $15.75/month (35K words), and $42.50 → $21.25/month (50K words); business plans are custom-priced.
- Free tier: A free trial is available and limited to 250 words; detection tools such as the AI image and voice detectors are advertised as free to use.
- Refund policy: The company offers a money-back guarantee if humanized output is flagged as not human.
- Plan limits: Paid plans are word-capped per month and include unlimited AI detecting and the Human Auto Typer; business plans can carry non-expiring credits.
Who It's For
The platform targets several groups. Students and educators use the detector to check drafts before submission and the humanizer to clarify stiff writing. Content writers and business owners use it to keep published copy readable and consistent at higher volume. Professionals apply it to emails, reports, proposals, and pitches. Journalists, trust-and-safety teams, and fraud reviewers can also use the media detection tools for images, audio, video, and documents.
FAQ
What is Undetectable AI?It is a platform that combines AI detection, AI humanizing, and content-improvement tools so users can check, refine, and rewrite AI-assisted text in one place.
Is Undetectable AI free to use?Yes, a free tier exists, including free detection tools, but the free trial for humanizing is limited to 250 words and ongoing use requires a paid plan starting at $5.00/month billed annually.
What platforms and integrations does it support?The tools run on the web and through a Chrome extension that works in Google Docs, Gmail, LinkedIn, and other pages; an API is available for business integrations.
Does it check anything besides text?Yes, it offers detectors for AI-generated images, voice recordings, videos, deepfakes, and manipulated PDFs, receipts, and IDs.
What happens if humanized text is still flagged as AI?The company states it will refund the cost of humanization if its output is flagged as not human, with details in its help center.
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