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Polygraf AI Content Detector is available as a Chrome Extension and a web tool, offering over 98% detection accuracy, so you can always trust the results.
Why Choose Polygraf?
* The Best Detection Accuracy: Our AI Detector boasts an impressive >98% accuracy rate in internal tests, setting a benchmark in the industry. Polygraf is trusted by government agencies and businesses worldwide for its ChatGPT detector and plagiarism detector capabilities.
* Unique Features: Did you know that Polygraf is the only AI detector that can tell if the content was enhanced by Grammarly or created by generative AI models like ChatGPT? This can be critical, protecting you against misinformation, propaganda, and claims of academic misconduct & copyright infringement with our advanced plagiarism checker.
* Trust & Data Security: We don’t train our models on your data. This means we never store your information, making Polygraf a trusted, 100% secure AI Detector. Our ChatGPT detector, Grammarly detection, and plagiarism checker functionalities ensure your content remains original and credible.
Key Features:
* AI Checker Free Version: Enjoy robust detection capabilities at no cost with the free version of our AI detector, including features like the ChatGPT detector and Grammarly detection with monthly renewing limited tokens.
* AI Detection: Add Polygraf Google Chrome extension in seconds and use Polygraf AI Detection to identify Human or AI-generated content in real-time, including a precise ChatGPT detector for pinpointing AI-created text, and a plagiarism checker for identifying unoriginal content. Polygraf accurately shows ChatGPT, Claude, Gemini, Llama, and other gen-AI
* AI Source Detection: Patent-pending Polygraf AI Content Detector will tell you whether the content was artificially generated, enhanced by Grammarly, or created by specific AI models like ChatGPT, functioning as an effective plagiarism detector as well.
* Humanized Text Detection: Our extension can immediately tell you whether the content is original or has been altered by AI-powered humanizers, paraphrasers, or tools like Grammarly.
* Writing Style Analysis: Evaluates text on 6 parameters:
* Perplexity: measures text complexity. (Higher tends to be Human)
* Readability: indicates sentence structure complexity.
* Vocabulary richness: reflects word diversity. (Higher tends to be AI, especially if altered by Grammarly)
* Syntactic tree depth: assesses text predictability. (Higher tends to be AI)
* Average sentence length: shows typical word count per sentence. (Higher tends to be AI)
* Average word length: represents the average length of words used. (Higher tends to be AI)
* Unmatched Accuracy: Boasts over 98% accuracy with a minimal false positive rate.
* Versatile LLM Detection: Recognizes content generated by top AI models, including ChatGPT 3.5, 4; Google Gemini, Meta Llama 3, Mistral AI, Grammarly, and Claude.
* Detailed Reports: Generates comprehensive reports to verify the originality of your content, leveraging both ChatGPT checker and plagiarism checker functionalities.
* Deception Filter (Web interface only): Detects intentional and unintentional text modifications aimed at deceiving AI models, such as empty spaces between words, deliberate grammatical errors, or alterations by Grammarly.
* Copyright Detector (Web interface only): Detects the original source of the content, providing URLs and exact sentence or phrase matches from the source, acting as a powerful plagiarism detector.
How It Works:
* Proprietary AI Protocols: Our proprietary AI protocols have been trained extensively on human and AI-generated content, identifying patterns and nuances in text to distinguish between the two with remarkable precision, even if the text has been enhanced by Grammarly.
* Real-time Detector: Detects and verifies the origin of content in real-time, against multiple generative AI models, including ChatGPT, Google Gemini, Meta Llama 3, Mistral AI, Grammarly, Antrophic’s Claude, and other LLMs.
* Probability Assessment: Provides insights into content's origin, reliability, trustworthiness, and whether it's human or AI-generated, modified, or enhanced by Grammarly, including identification of the specific AI models used, such as ChatGPT.
* Forensic Linguistic Analysis: Traces machine-generated text back to the source material used to train AI models, even detecting enhancements by Grammarly.
* Intuitive Interface with In-Depth Analytics: Easy-to-use dashboards and clear scores. Dive deep into potential matches with direct source links and similarity percentages using our advanced plagiarism checker.
Premium Features:
Unlock the full potential of Polygraf with a premium and enterprise subscription:
* Humanized Text Analysis - see if the content was humanized;
* AI Source Detector - find out which AI tool created the given content;
* Copyright Detector - identify the original copyright holder of your AI-generated content;
* AI Highlighter - see which part of your content is AI generated;
* Advanced Plagiarism Detector (Web interface Only) - check your content against possible plagiarism failures;
* Deception Filter (Web interface only) - find out if the content is intentionally hiding its digital footprint;
* Uploading Documents (Web interface only) - upload documents and run Polygraf on them;
* Youtube AI Context Detector (Web interface only) - see which tools your favorite Youtuber is using for their script writing;
* Website AI analysis - enable auto verification, and see instantly which website is using AI content without taking any extra steps;
Easy Installation:
1. Click ‘Add to Chrome’
2. Pin the Polygraf AI Detector to your extension bar
3. Log in using Google or Sign up with your email
4. Highlight text and click the extension icon to start detecting with our ChatGPT checker and plagiarism checker.
Why Choose Polygraf?
* The Best Detection Accuracy: Our AI Detector boasts an impressive >98% accuracy rate in internal tests, setting a benchmark in the industry. Polygraf is trusted by government agencies and businesses worldwide for its ChatGPT detector and plagiarism detector capabilities.
* Unique Features: Did you know that Polygraf is the only AI detector that can tell if the content was enhanced by Grammarly or created by generative AI models like ChatGPT? This can be critical, protecting you against misinformation, propaganda, and claims of academic misconduct & copyright infringement with our advanced plagiarism checker.
* Trust & Data Security: We don’t train our models on your data. This means we never store your information, making Polygraf a trusted, 100% secure AI Detector. Our ChatGPT detector, Grammarly detection, and plagiarism checker functionalities ensure your content remains original and credible.
By integrating a powerful ChatGPT detector, plagiarism detector, and Grammarly detection, Polygraf stands out as a comprehensive tool for anyone serious about maintaining the authenticity of their digital content.
Companies on Trustpilot aren't allowed to offer incentives or pay to hide reviews. Reviews are the opinions of individual users and not of Trustpilot. Read more
Polygraf has quickly become my go-to software for polishing and optimizing our content. It can accurately detect AI or human written content, and even includes a bonus "humanize" feature to improve the output. Other features include copyright detector, cognitive flow index, writing analysis, and many more. Credits are generous and the support team are very responsive on emails. Highly recommended! 🏆💯👍
10 June 2025
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