Paste any text to check whether it was written by ChatGPT, Claude or another AI. Linguistic heuristics plus an AI second opinion give you a balanced verdict.
Our free AI content detector blends two complementary techniques. First, a fast linguistic analyzer scores stylistic fingerprints common to large language models — low sentence-length variance (burstiness), uniform vocabulary, over-use of transitional phrases like "in conclusion" and "delve into", and an unusually predictable distribution of common words. Second, an AI second-opinion reviews the same passage and reports its own probability score. The two are blended into a single AI-likelihood percentage.
Yes. No signup, no email, no credit card. You can run as many checks as you like.
It is model-agnostic. The same stylistic tells appear across ChatGPT, Claude, Llama, and Mistral output.
Yes — and that is the point. The score drops as you rewrite for natural sentence variety, remove tell-phrases, and add specific human detail. Use it as an editing target, not a judgement.