What is Undetectable AI?
Undetectable AI is a web-based AI humanizer and detection suite that rewrites text from ChatGPT, Claude or Gemini so it reads more naturally, then scores it against several AI detectors. It targets students, bloggers and marketers, and sells word allowances per month rather than unlimited use.
Drafts produced by large language models often share a recognizable rhythm, and many schools, clients and publishers now run them through AI detectors. Undetectable AI pairs a rewriter with a multi-detector check, so you can revise a draft and see how it scores in one place. Beyond text, the same account now covers image, voice and video detection, a plagiarism checker and a watermark remover, which makes it closer to a content-verification toolkit than a single paraphraser.
Main Features
- An AI Humanizer rewrites AI-generated text into more natural phrasing while keeping the original meaning.
- An AI Detector estimates whether text was machine-written and compares results across several popular detectors.
- A paraphrasing tool, AI essay writer and AI SEO content writer cover drafting as well as rewriting.
- An AI plagiarism checker and a text watermark remover sit alongside the humanizer.
- Separate detectors check images, voice recordings and video for AI generation or deepfakes.
- A Chrome extension brings the humanizer and detector into the browser.
- An API is available for teams that want to run humanizing or detection inside their own workflows.
How to Get Started with Undetectable AI
- Open Undetectable AI and paste a draft into the humanizer or detector box.
- Use the free trial words to run a first rewrite and review the detector scores.
- Pick a monthly word plan if you need more volume, then install the Chrome extension for in-browser use.
Undetectable AI Pricing
New users get a 250-word free trial; paid plans start at $5 per month for 10,000 words (Starter) and rise to $21.25 per month for 50,000 words, with custom Business plans.
Who Should Use It?
- Bloggers polishing AI-assisted drafts before publishing
- Marketers checking agency or freelancer copy for AI patterns
- Students reviewing how their own writing scores on AI detectors
- Content teams that want detection and plagiarism checks in one account
- Developers adding humanizing or detection through the API
Undetectable AI Alternatives
- Humanize AI: a narrower tool focused only on humanizing text
- ZeroGPT: detector-first, with a permanently free tier
- QuillBot: better for general paraphrasing and grammar fixes
Frequently Asked Questions
Is Undetectable AI free?
Only partly. You get a 250-word trial to test the humanizer and detector, then paid monthly plans add larger word allowances, starting at $5 per month for 10,000 words, with yearly billing and custom Business plans also offered.
What can it detect besides AI text?
The same account includes detectors for AI images, AI voice, AI video and deepfakes, plus tools that flag fake PDFs, receipts and IDs, alongside a plagiarism checker for written work.
Does it have an API or browser extension?
Yes. There is a developer API for running the humanizer and detector programmatically, and a Chrome extension that lets you use the tools directly on web pages and in online editors.