Undetectable AI

Freemium

人間らしい文章化やブラウザ機能に対応したAI検出・書き換えツール

Undetectable AIとは？

Undetectable AI is a web-based AI detection and rewriting product centered on checking whether text will be flagged as machine-generated. The main detector lets users paste text, upload a file, or try sample content, and it presents results from multiple AI checkers at once.

The site also positions the product as a broader writing workflow tool, with an AI Humanizer, a Sentence Rewriter, a Word Counter, a Chrome Extension, and business offerings for white-label use, affiliate partnerships, and API-based integration. Pricing includes monthly and yearly plans, plus a business contact flow for custom needs.

Undetectable AIでできること

AI text detection

Paste text, upload a file, or start from sample text to check whether content is likely to be flagged as AI-generated.

Collective detector results

See results from multiple major AI detectors at once instead of relying on a single checker.

Broad model coverage

The site says the detector recognizes content from ChatGPT, GPT-5, Gemini, Claude, Llama, DeepSeek, and paraphrased text.

Chrome extension

A browser extension is available for checking text while working in places like social media, email, and Google Docs.

Business and API options

Business pages describe white-label solutions, affiliate partnerships, and API access for organizations that want to embed the tools.

Rewrite and humanize tools

The AI Humanizer and Sentence Rewriter extend the workflow beyond detection to rewriting and humanization tasks.

利用シーン

“Pre-publish content review”

Writers can run drafts through the detector before publishing to see whether the text is likely to trigger AI flags and then revise with the humanizer or sentence rewriter if needed.

“Academic integrity checks”

Students, teachers, and researchers can check essays, assignments, and research writing to understand whether content appears AI-generated before submission or review.

“SEO and content QA”

SEO teams and marketers can evaluate landing pages, articles, and product copy to reduce the chance that content looks machine-written.

“Team and product integration”

Businesses can add detection or humanization into their own services through white-label options, affiliate programs, or APIs.

“In-workflow checking”

People working in browsers can use the Chrome Extension to check text in emails, documents, and social posts without leaving the page.

よくある質問

How does the AI detector work?

The site presents Undetectable AI as a free AI detector that lets you paste text, upload a file, or try sample text to check whether content is likely to be flagged as AI-generated. It also says the detector combines results from multiple major AI checkers.

What kinds of AI-generated text can it detect?

The homepage says the detector can identify text from ChatGPT, Gemini, Claude, Llama, DeepSeek, and paraphrased content. The pricing page also notes a free trial is limited to 250 words, with additional usage requiring a paid plan.

Is there a business or team offering?

Yes. The site includes a Chrome Extension and a Business Solutions page for teams, white-label use, affiliate partnership, and developer API access. The business page also mentions internal humanization, redistribution, white-label services, and a Check for AI API.

Does Undetectable AI offer tools beyond detection?

The service includes an AI Humanizer that rewrites text to make it appear more human-like, and a Sentence Rewriter for free sentence rewriting. The business page also mentions an SEO Content Writer and Human Typer in its solutions list.

Is there a paid plan or guarantee?

The pricing page lists monthly and yearly plans, plus a business option with custom pricing. It also states that if the company’s humanization is flagged as not human, it will refund the cost of humanization, with more details in Help.

クイック情報

Category: AI detector and text rewriting tool
Primary use: Check whether text is likely to be flagged as AI-generated
Platform: Web app with Chrome Extension
Business options: White-label, affiliate, and API access
Pricing model: Free detector with paid plans and custom business contact flow
Source domain: undetectable.ai