Originality
ChatGPT AI content detector & a modern plagiarism checker
Originality launched on January 10, 2023 with 419 votes, #26 of 3,901 launches that month and more than 95% of that year's launches. The site was still online in September 2026, 3 years on.
In plain words
Originality is a content verification tool that combines AI detection with plagiarism checking. It identifies content generated by GPT-3 and ChatGPT while simultaneously scanning for copied material. The tool is designed for web publishers and content creators who need to verify the authenticity and originality of written work before publication.
written from the facts on this page · September 2026
From the sources
Combining AI Detection and Plagiarism Checking to determine the Originality of a piece of content. A modern plagiarism checker built for serious web publishers and the most accurate AI Detector capable of detecting GPT-3 and ChatGPT-generated content.
Use the accurate Originality.ai AI detector to identify if text was generated from a popular AI platform like ChatGPT, Gemini, Claude, Grok and others.
AI Detector By Originality.ai™ is the Most Accurate AI Detector in third-party studies . Check up to 2,000 words with 3 Free AI Scans Per Day. Check for AI and plagiarism. Plus, watch a writing replay to prove authorship. See scores for each selected scan. Then, adjust AI Allowance or try Deep Scan . Originality.ai has proven accuracy in multiple, peer-reviewed third party studies. Accuracy metrics for our latest AI detection models: AI Accuracy Study Accuracy on the Latest LLMs: GPT-6 Astra (Sol, Luna, Terra), GPT 5.5 , Claude Fable 5 , Gemini 3 , Kimi K3 , DeepSeek V4 (Flash & Pro), Grok 4.1 Fast , Llama 4 Maverick & Scout , and more Our team actively tests AI tools that change, modify,…from originality.ai
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