Plagiarism Checker Grammar Checker Content Quality Guideline Checker Readability Checker Originality.ai’s patented, real-time, and accurate Fact Checker identifies false facts and helps you avoid AI hallucinations. Publish content with integrity. Trusted by Industry Leaders A complete suite of QA/QC products Fact Checker, AI Checker, Plagiarism Checker, Readability Checker & More! In addition to our Fact Checker feature listed on this page we have a complete suite of AI tools to help Editors including AI Checking , Plagiarism Checking , Readability Checking & Grammar & Spelling Checking . Use our fact checking aid to help ensure your content is factually correct. Most Accurate AI Detector for all AI writing tools. Try now for free. Plagiarism Checker › See if text has been plagiarized from anywhere on the internet. Content Quality Score › Review content quality to submit essays, papers, or blogs with confidence. Scale content QA and scan an entire website’s content easily. Grammar Checker › Say goodbye to typos. Catch grammar and spelling errors before you publish. Readability Checker › Optimize readability for your target audience to communicate clearly. Advanced, Comprehensive, and Precise Fact Checking Has Never Been More Important Fact-checking is time-intensive, yet essential. Misinformation, potential false facts, and AI errors can have huge consequences; just consider the Deloitte scandal and the AI book list scandal . Proper fact-checking means protecting the authenticity of your work as a writer, editor, student, or teacher. Benefits of Originality.ai’s Fact Checking Assistant Publish your content and submit assignments with confidence Originality.ai's Fact Checker is built to support writers, students, editors, and teachers. Prevent the consequences of incorrect facts Loss of credibility Editorial delays Spread of misinformation AI model bias proliferation Increased public scrutiny Real-time, accurate fact checks to streamline review Fact Status: Potentially True or Potentially False Explanation: Why is it Potentially True or False? Source: Links to real-time sources Real-time (not limited to Sept. 2021 or earlier) Cross-reference and verify facts Generate bibliographic citations (1 citation or a full list) Generate 1 citation or export a full citation list Select citation style: APA, MLA, Chicago, IEEE Export & download a PDF bibliography Learn more about the citations feature. Studies on "Do AI Detectors work?" 3rd Party AI Detection Accuracy Studies Originality.ai was shown to be the most accurate AI detector across multiple published studies. Including the most in depth analysis to date looking at 12 detectors and 11 LLMs. Internal AI Detection Benchmark & Study Our detector was the most accurate across multiple publicly available datasets tested covering blog posts, books, research papers, essays, news, wiki and reviews. We built and open-sourced a testing tool to help others replicate on their own data. Our unfair advantage Why are we most accurate? AI Detectors without an in-depth analysis verified by third party studies should be used with caution. Proven Third-Party Accuracy You don’t just need to take our word for it. Independent third-party studies have also found the Originality.ai AI detector to be exceptionally accurate. Accurate on Latest Models We are constantly testing our AI detection models against the latest flagship models from OpenAI, Anthropic, Meta and other leading LLM providers. Built and Trained on “Adversarial” Datasets We have a full time “Red Team” that is actively testing strategies to make undetectable AI content. Once they find a strategy (such as Paraphrase Plagiarism) that can create high quality undetectable AI generated text and bypass our AI content detector we improve our AI technology and make it detectable. Fact Checker Features How Does Originality.ai’s Automated Fact Checker Work? Originality.ai is the industry leader in patented content quality tools. The Originality.ai Fact Checker is an internally built AI trained to provide factual answers, with context, sources, and citations. Not to mention it’s highly accurate with a superior edge over GPT-4o. 1. Input Content Input your content, such as a blog, essay, paper, or other assignment. Conveniently copy-paste, upload a document, import from a URL, or use the API. 2. Scan an Entire Article Click to scan your entire document for factual accuracy. Then, review the Fact Check Score and the Potentially True or Potentially False facts. 3. Review Sources & Get Citations Check the overall percentage of Potentially True or Potentially False facts and sources for each fact, then export the source as a citation (or the whole list of sources as a PDF bibliography). 4. Organizational Fact Check Monitoring Mitigate the risk of publishing factually incorrect information across all of your organization’s content with Bulk Scan for checking facts, potential AI content, and plagiarism. Originality.ai is Built For… Marketers, Writers & Publishers Transparently check for AI text to avoid Google penalties Maintain brand integrity Bulk scan to understand AI usage site-wide Check factual accuracy (avoid AI hallucinations) Detect plagiarism and duplicate content Create engaging people-first, human-written content that’s rank-worthy and readable Teachers & Students Uphold integrity and transparency across: assignments, essays, coursework, papers Moodle Plugin : easily check for AI content and plagiarism in Moodle LMS Peace of mind for students with a Free Chrome Extension to ‘Watch a Writer Write’ Deep Scan: See why text is flagged as AI + how to ethically edit it, so your work is identified as original (not AI)! Agencies & Enterprise Manage client & writer expectations for AI use Integrate a process for AI detection, plagiarism checking, and factual accuracy at scale Streamline editorial processes across teams with team management and report sharing

Integrations: Extensions & Plugins Seamlessly integrate our AI Checker into your favorite platforms like Chrome, Moodle and more. Check for AI use without skipping a beat. Chrome extensions How to use Originality.ai Paste or Upload Text Login to Originality.ai and paste your text into the editor. You may also upload a PDF or enter a URL for scanning. Select Scan Types Select your desired scan types like AI, Plagiarism, Content Quality, Readability, Grammar OR Fact checker to scan your text against. Click on the Scan button and get scores for each scan types with detailed explanations and sentence highlights wherever applicable. Flexible Pricing Protect your reputation & improve your content quality by accurately detecting plagiarized content and artificially generated text. ClickingPublish.com At Clicking Publish, producing original, high-quality content is essential to our success. To maintain these standards, it's important that we verify the work from freelancers and outsourced writers. Originality.ai makes this process easy for us by providing a simple and efficient tool that ensures the content we receive meets our expectations. Customers love Originality.ai Originality is a great tool for detecting AI content. The product has been invaluable for our content marketing team . Fernanda and the team are always very responsive and helpful. Highly recommend this product. Miguel Maloney Thompson I have the opportunity to make sure that my writing is plagiarism-free , and with a lot of AI-generated content around, I can ensure my writing does not get flagged as just another to the bunch. I do technical writing where there are only so many ways to describe concepts and ideas. However, Originality.ai gives me the opportunity to personalize my writing even more , which is an advantage. With some time, I can give my content a sense of uniqueness. Reliable and trustworthy . Originality is always so quick to respond to my questions and lend a helping hand. It’s a very good tool for detecting ChatGPT use on academic papers, especially with the "view writing" feature which shows the text being typed by the student as they were typing it. AI is accurate compared to free choices and the support staff like Ellie are very helpful. The interface is easy to use and shows a % chance of the work being AI . It’s also, nice that it shows what parts may be AI or not. The service provided is exceptional, offering the most accurate and reliable AI detector available on the market . The customer support team is exceptionally responsive. Originality's AI checker and plagiarism detector are absolutely phenomenal —by far the best I have used (yes, I used all of Winston, GPT zero, etc.). The Turbo model is CRAZY good! There are lots of similar AI detection tools available online but nothing comes even close to what they offer . I can't trust any other tools other than theirs. Have tried maybe 20-30 other websites and settled with them. I had an excellent experience with the support team at Originality.ai. They were incredibly responsive and provided clear, detailed answers to all my questions. The explanations were thorough, and I now have a much better understanding of how the platform works and how my content is handled. The team was patient and professional and went above and beyond to ensure all my concerns were addressed . I truly appreciate their help and the top-notch customer service they provide. Highly recommended! Canadian Law Student Originality.ai is the best tool on the market . I have used comparable services and this one is exceptional. It provides an accurate report with a match score which really helps writers/researchers adjust and improve their work. There are also advanced features such as paraphrase detection which are not available with any other comparable service. The features provided by Originality.ai are exceptional for users who want to avoid plagiarism and also improve their research process . I hope to continue using Originality.ai for many years to come. This is a really helpful tool. Certainly the best of the AI detectors I tried. What makes it great is that you also get a bunch of other tools that are really helpful. The fact checker is awesome , it gives you feedback on whether or not points in your essay are factual or not by reading the source material in your citations. I have been using this tool since the start! And it has saved me many times . Many times when checking clients' sites the problem was AI content or plagiarism. When I hire writers, I want 100% human-written content. I depend upon Originality.ai to check this for me . Originality.ai saved me from making a big mistake. I have written a book with the help of ChatGPT, 40% of my work is AI; 60% is human. It identified the AI, and now I am writing it all by myself. 88-100% human. Thank you Originality.ai . I started to look for an easy tool to confirm my suspicions over some of the material being submitted by my students in first-year Communication courses. I found Originality.ai and tried it out. It worked so well that I actually tested it out with some material I created using AI as an example and sure enough, it perfectly determined which was my work, what was totally AI-written, and what was edited AI material . Andrew Stevenson Originality.ai has been remarkable in its ability to detect AI content . The customer service is also incredible in how thorough and responsive they are. Highly recommend this program. Pieter Steenkamp I found Originality.ai to be the best AI detector. I use it for my student's assignments and recommend it to my colleagues. Originality really lives up to the expectations, it's super reliable and has the best detector for AI. Now I can understand why so many people use it such as professionals. Incredible experience. Excellent product. Very easy to use, thorough and informative. Brady was incredibly helpful on the chat. He carefully checked my document to see why it had a high score for AI and then explained it to me. He provided individualized advice on how to move forward. Excellent! Thank you Brady. Customer service is top-notch. Not only are they super accommodating, they are also super helpful. The tools on Originality.ai are also incredibly accurate and very useful. I've had nothing but positive experiences using this service. Originality.ai is by far the best AI detector tool . We have used other tools to detect AI in content but we have found that Originality.ai is by far the most accurate. This, combined with flexible payment plans to suit individual requirements and sharp customer support. Originality.ai is a no-brainer if you are looking for an AI detection solution. Featured by Leading Publications How companies are embracing generative AI for employees…or not Many prominent companies have entirely blocked internal ChatGPT use, including JPMorgan Chase , Northrup Grumman, Apple, Verizon, Spotify and Accenture, according to AI content detector Originality.AI, with several citing privacy and security concerns. Ben Schreckinger AI vs. public opinion Originality.ai, a site that provides detection services for AI-generated content and plagiarism, published a convenient tracker that lists the 10 pending lawsuits against OpenAI and ChatGPT. Mushroom pickers urged to avoid foraging books on Amazon that appear to be written by AI Four samples from the books were examined for the Guardian by Originality.ai, a US firm that detects AI content. Steven Lee Myers & Tiffany Hsu Another Side of the A.I. Boom: Detecting What A.I. Makes More than a dozen companies have popped up to offer services aimed at identifying whether photos, text and videos are made by humans or machines. Generative AI: hype not hyperintelligence is lifting values Generative artificial intelligence could produce magic in the sky , says Sam Altman founder of pioneering start-up OpenAI. Successful entrepreneurs are entitled to make visionary statements. Major websites are blocking AI crawlers from accessing their content Nearly 20% of the top 1000 websites in the world are blocking crawler bots that gather web data for AI services, according to new data from Originality.AI , an AI content detector. Andrea Taloni, Vincenzo Scorcia, and Giuseppe Giannaccare Modern threats in academia: evaluating plagiarism and artificial intelligence detection scores of ChatGPT Plagiarism and research integrity are sensitive issues in the academic setting, especially after the recent offspring of artificial intelligence (AI) and large language models (LLMs) such as GPT-4.0 [1] . Why publishers are questioning the effectiveness of blocking AI web crawlers A number of publishers — including Bloomberg and The New York Times — were quick to block OpenAI’s web crawler from accessing their sites , to protect their content from getting scraped and used to feed the artificial intelligence tech company’s large language models (LLMs). Frequently Asked Questions How accurate is the Fact-checker? We completed a fact checker accuracy study looking at the accuracy of our Fact Checking aid. The results show an overall 86.69% accuracy. Originality.ai closely tied GPT-5 for accuracy, with a slight lead (Originality = 86.69% accuracy vs. GPT-5 = 86.67%), while decisively beating GPT-4o. However, the accuracy still means that the tool should be used as a fact checking aid and not viewed as the final source of truth. What kinds of facts can I check? Nearly everything! The fact has to be verifiable though, so for example you can’t check “Chocolate ice cream is the best flavour.” as this is an opinion which cannot be peer verified. Also, for now we are steering clear of anything political. Is it multilingual? In short, no. But watch this space for updates in the coming months! What is the source coverage for the Fact Checker and does it provide source citations? The Originality.ai Fact Checker has at least 1 source for every identified fact, each with a url, and now a title and date (if relevant). Plus, you can now generate a quick copy-pasteable citation in the style of your choice (APA, MLA, Chicago Notes and Bibliography, IEEE) for each individual search result source used by the Fact Scanner in its evaluation. Additionally, users can now generate a .docx or .txt file containing all the sources the Fact Scanner used in its scan. How does the Fact Checker work? In short the checker goes through the content per sentence, fetches relevant URLs, and uses their content and your article to verify your fact. Can I check recent information? Yes. Our fact-checker is internet-connected, allowing us to deliver results based on the latest information. What sources does the fact-checker use to verify information? The Originality.ai Fact Checker has at least 1 source for every identified fact, each with a url, and now a title and date (if relevant). Plus, you can now generate a quick copy-pasteable citation in the style of your choice (APA, MLA, Chicago Notes and Bibliography, IEEE) for each individual search result source used by the Fact Scanner in its evaluation. Additionally, users can now generate a PDF bibliography of citations with all of the sources from the fact checking scan. Does the fact-checker store or share the information I input? We value user privacy and ensure data is handled with utmost security. All information concerning our privacy policy can be found here - https://originality.ai/privacy-policy How is the accuracy of the fact-checker measured? We conducted an updated 2025 study on our fact checker’s accuracy. To find out how we measure fact checker accuracy, what datasets we used to evaluate the tool, and how Originality.ai compares to GPT-4o and GPT-5 read the full study . Are there any costs associated with using the fact-checker? We offer various pricing options to suit different needs. All information concerning our pricing can be found here https://originality.ai Can I submit feedback or corrections to the fact-checker? Yes absolutely! We always love to hear ways in which we can improve, contact our exceptional support team to provide feedback. AI & Plagiarism Detector for Serious Content Publishers Originality.ai 64 Hurontario St Collingwood, Ontario L9Y 2L6 © 0000 Originality.ai