AI similarity percentage
Checks text for signs of AI-generated writing and estimates how likely it is to be human-written or AI-written.
AI Detector
RevendiquerAI Detector is a free web-based checker that estimates whether text is human-written or AI-generated, with percentage results for students, writers, editors, and businesses.
Overview
AI Detector is a web-based AI text detection tool that checks whether content appears to be written by a human or by an AI writing tool such as ChatGPT, Gemini, or Claude. The site presents the result as an AI similarity percentage and a human-written percentage, with a simple interface for pasting text and running a check.
The product’s stated purpose is to help users review text for originality, AI-generated plagiarism, and content quality. Its pages position the tool for students, teachers, writers, webmasters, journalists, PR specialists, businesses, and other users who need a quick way to assess whether a piece of writing looks machine-generated.
Features
Multi-layer text analysis
Analyzes writing patterns, vocabulary, syntax, semantics, and sentence structure to flag content that resembles AI output.
Flexible text length support
Supports text inputs from a single sentence up to 1000+ words, with a note that 50+ words can improve consistency.
Pattern and coherence checks
Highlights repetition, paraphrased content, and contextual coherence issues that may indicate AI-generated text.
NLP and machine learning model
Uses NLP and machine learning models trained on human and AI-written text, with the site claiming up to 99% accuracy.
Readable result summary
Shows simple result fields such as AI percentage, human-written percentage, similarity, sentence count, words, and characters.
Use cases
Student assignment review
Students can check essays, assignments, and other submissions for signs of AI assistance before turning work in.
Classroom originality checks
Teachers can evaluate student writing for originality and look for text that appears heavily AI-generated.
Editorial and publishing review
Writers, webmasters, journalists, and PR specialists can review drafts before publishing to reduce the risk of releasing machine-like copy.
Business content QA
Businesses and organizations can screen marketing or internal content for AI-generated phrasing that may affect accuracy or brand voice.
Fast draft triage
Users can paste a sentence, paragraph, or longer draft to get a quick estimate of AI similarity and decide what to rewrite.
Pros and Cons
Pros
- Provides a percentage-based readout instead of a simple yes/no judgment.
- Accepts text from short sentences to longer passages, making it usable for quick checks and larger drafts.
- Covers several analysis angles, including semantics, style, vocabulary, repetition, and coherence.
- Positions itself as free to use, based on the pricing page description.
- Supports common content-review scenarios across education, publishing, and business use.
Cons
- The source does not confirm exact pricing tiers, usage limits, or paid-plan features.
- Team collaboration, integrations, and account-management capabilities are not described in the collected pages.
- The site warns that shorter samples may be less consistent and recommends using 50+ words for better results.
FAQ
What does AI Detector do?
The site presents AI Detector as a free tool for checking how likely a piece of text is AI-generated versus human-written. It also shows a percentage-style output for AI similarity and human writing likelihood.
How much text can I check?
The homepage says the tool can check text from a single sentence to 1000+ words, and it recommends using 50+ words for more accurate and consistent results.
How does it work?
According to the about page, the detector uses natural language processing, machine learning, semantic analysis, and other text-pattern analysis methods to estimate whether text was written by AI or a human.
Is there a paid plan?
The pricing page is titled “Pricing” and the page description says the product can be used for free. No paid tiers, limits, or billing details are shown in the collected text.
Can teams manage shared accounts?
The source does not show team features, multi-user controls, or account management beyond a login page, so those capabilities are not confirmed from the available pages.
Quick Facts
- Category
- AI detection
- Platform
- Web app
- Primary output
- AI similarity percentage and human-written percentage
- Source domain
- ai-detector.info
- Pricing
- Free use mentioned; no detailed tiers shown
- Typical users
- Students, teachers, writers, webmasters, journalists, PR specialists, and businesses
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