Identifies low variance, smooth writing, safe sentence progression, and generalizations frequently found in outputs from OpenAI-like models.
Advanced AI Detector
Instantly analyze text or documents to detect AI, human, and mixed content with sentence-level highlights.
Content
Paste Text⌘Vor click
Upload DocumentTXT.DOCX.PDF
Try Example:
ChatGPT
Claude
Human
Human + AI
0 words
Result
AI-generated
?%
Mix-generated
?%
Human-written
?%
Add text and click "Detect AI" to see the results.
Highlighted AI-Generated/Paraphrased Sentences
List sentences likely AI-generated here
Recent History
350K+
Scans Performed Monthly
99%
Accuracy Rate
4.9
Average Rating from 12,589 Users
Why Lynote is the Best AI Detector?
99% Detection Accuracy
Designed to detect AI content with a high degree of confidence in human-written, AI-generated and blended content, with sentence highlighting to make the process of analysis easier.
Detect Text from Leading AI Models
Detect writing produced by ChatGPT, GPT-5, Gemini, Claude, LLaMA, Mistral and many others in just one tool.
Paraphrase Detection
Identify the writing that has been paraphrased, refined or humanized by AI instead of looking for exact duplicates only.
50+ Languages Supported
Run one free online AI writing detector for your essays written in English, Spanish, French, German, Portuguese, Chinese, Arabic and many others.
Safe and Confidential
Drafts, essays and even client texts will stay confidential. At Lynote we don't use any submitted texts for model training.
Specific AI Score
Get AI, human and blended scores with sentence highlighting to see exactly what needs reviewing next.
AI Detection You Can Explain
Lynote's AI detector is designed to do more than return a single percentage. It gives an overall score, highlights likely AI-written lines and helps you understand where the text needs closer human review.
Free AI Content Detector for Global Writing
Writing using AI occurs in all languages and workflows. Lynote is multilingual with 50+ languages; therefore, students, teachers, SEO experts, and publishers can examine essays, articles, reports, and applications without using different platforms. Whether you write in English, Spanish, Portuguese, German, Italian, French, Japanese, and many other languages, Lynote can identify the AI score in that particular language.
Sentence-Level AI Text Highlights
Instead of guessing what caused a high AI score, review the exact sentences Lynote flags as AI-generated, AI-edited or mixed. This makes the report easier to use for rewriting, feedback, editorial checks and content quality review.
How to Use the Free AI Detector
Paste Text or Upload a File
Add your text directly or upload a PDF, DOCX or TXT file to prepare it for AI detection.
Click Detect AI
Click Detect AI. Lynote checks sentence patterns, word choice, predictability and signals linked to AI writing tools.
Review the Results
See AI-generated, human-written and mixed scores, then review highlighted sentences before making a decision.
Paste Text or Upload a File
Add your text directly or upload a PDF, DOCX or TXT file to prepare it for AI detection.
Click Detect AI
Click Detect AI. Lynote checks sentence patterns, word choice, predictability and signals linked to AI writing tools.
Review the Results
See AI-generated, human-written and mixed scores, then review highlighted sentences before making a decision.
Lynote Detects AI Text Across All Major LLMs
Lynote does more than label a draft as AI or human. It identifies writing habits across leading frontier models and open-source LLMs, explaining why text feels synthetic and highlighting key patterns first.
Our detector is designed to catch common traits found in major AI models while still giving users practical, readable feedback. Instead of relying on one signal alone, Lynote compares rhythm, phrasing, predictability, and structure across a broader review workflow.
Identifies analytical, well-balanced structure and perfectly symmetrical paragraph progression that seems overly consistent.
Flags conversational but dense synthesis, fact-heavy compression, and transitions that sound smoothly generated.
Core review signals include repetition, sentence rhythm, lexical variance, predictability, and detector-aware phrase patterns.
ChatGPT Claude Gemini
Core detection signals
Pattern repetition
High
Sentence rhythm
Medium
Lexical variance
Medium
Model similarity
High
99% Benchmark accuracy for fast AI review workflows
50+Languages supported across global AI content checks
1 ViewClear detector summary with sentence-level clues
“The Best AI Detector”
This is what experts, periodicals, and industry insiders have to say about AI detector tools that facilitate the process of detection, originality review, and AI-generated text evaluation.
Lynote helps readers find real content online by making AI-written passages easier to spot.
★★★★★
AI detection is becoming a practical review step for teams working with AI-assisted drafts.
★★★★★
Better AI workflows help users filter, verify, and make clearer decisions from existing content.
★★★★★
Lynote focuses on the mathematics of language to support high-accuracy AI content detection.
★★★★★
Content integrity matters more as AI writing becomes a normal part of modern publishing.
★★★★★
Lynote checks text across major AI models, including GPT-5, Claude, Gemini, Llama, Mistral, and Perplexity.
★★★★★
Learners and researchers need clearer ways to review AI-heavy notes, summaries, and study content.
★★★★★
Creators need AI detection that can keep up as model-written text becomes harder to recognize.
★★★★★
Lynote helps bridge artificial efficiency and human authenticity in content verification.
★★★★★
Integrated AI detection and translation workflows make it easier to verify content across languages.
★★★★★
AI Detector FAQ
Answers to common questions about AI detector accuracy, AI checker results, false positives and privacy.
Yes. Lynote offers a free AI detector for checking text online. You can paste text or upload a document and run your first AI check without creating an account. Higher usage limits are available on paid plans.
AI detectors can be useful, but no detector is perfect. Lynote is built for high-confidence AI detection and gives sentence-level highlights so you can review the result instead of relying on one score alone.
AI detectors analyze writing patterns such as word choice, sentence rhythm, predictability and structure. AI-generated text often has smoother, more repeated patterns than human writing. Lynote checks those signals and returns AI-generated, human-written and mixed scores.
The best AI detector is accurate, transparent and easy to interpret. Look for sentence-level highlights, support for major AI models, privacy protections and clear guidance about false positives. Lynote is built for users who need fast results they can actually review.
Yes. Lynote is an AI detector free online for quick text checks. Paste your text, upload a supported file, or try an example to see AI-generated, human-written and mixed results in seconds.
An AI text detector, AI checker, AI content detector or AI writing detector analyzes writing and estimates whether it is AI-generated, human-written or mixed. Lynote also highlights the sentences that need closer review.
Yes. Lynote is designed to check writing from ChatGPT, GPT-5, Gemini, Claude, LLaMA, Mistral and other major AI tools. It also helps review text that has been edited or paraphrased after AI generation.
Yes. Lynote supports AI detection in 50+ languages, including English, Spanish, French, German, Portuguese, Chinese, Arabic and more.
Lynote processes text securely and does not use your submitted content to train detection models. This is important for essays, client drafts, unpublished articles, applications and internal documents.
Detect AI Content with Complete Confidence
Paste your text or upload a document now to get instant AI, mixed, and human content scores with precise sentence-level highlights.