Originality.ai

Originality.ai is an AI-vs-human content detector built around a proprietary, patented (U.S. Patent No. 12,253,988) BERT-based classification model, paired with a separate plagiarism checker so publishers can screen for both machine-generated text and copied material in one workflow. It also bundles readability, grammar and spelling, and an automated fact-checking tool, positioning the product as an all-in-one editorial quality-control suite rather than a single-purpose detector.

Scans return a probability-based AI score alongside sentence-level highlighting of the passages most likely to be machine-written, and an "AI Allowance" setting lets a team define how much AI-assisted writing it will tolerate before content is flagged, rather than treating any AI signal as pass/fail. A "Deep Scan" mode explains why specific text was flagged and suggests edits, and the vendor publishes its own accuracy studies (claiming 97.8% accuracy on its multilingual model across 30 languages) alongside references to third-party benchmarks, though the headline figures are ones Originality.ai selects and publishes itself.

The customer list leans toward high-volume web publishers, content marketing agencies, and enterprises managing freelance writers at scale (The New York Times, The Guardian, Reuters, Walmart, and Alibaba are cited as users), alongside a secondary education market served through a Moodle plugin and Google Classroom integration. It reads as built more for teams running many scans a month across a content pipeline than for a single teacher checking one essay.