Clever AI Detector is the detection half of the Clever Humanizer suite. Its single job is to estimate how likely a piece of writing is to have been generated by an AI model, and to be transparent about the fact that this is an estimate. Rather than stamping a red verdict on any text with tidy grammar, it reports a 0–100 AI probability alongside the sentences that carried the strongest machine-like signals.
The engine works by combining statistical indicators — how predictable the word choices are, how uniform the rhythm is, and how often characteristic AI phrases appear — with pattern matching trained on large collections of human and AI writing. Each sentence is scored separately, so a mostly human document with a handful of templated paragraphs shows up clearly in the highlights.
It is free to the point of being unusual: 10,000 words per check, unlimited runs, no ads, and no paywall hiding the sentence-level detail. The team also publishes its accuracy caveats openly, noting that false positives are likelier on overly formal or heavily edited prose. The detector sits alongside the site's AI humanizer, paraphraser and grammar checker, so you can detect a problem and then rewrite it in the same workspace.
