Paste your text and see which sentences look AI-written, line by line. It reads ChatGPT, GPT-5, Gemini and Claude. Free to try, no sign-up.
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Detection
Each sentence gets its own score, so you know which lines to fix instead of guessing at the whole thing.
In today's rapidly evolving landscape, AI has become an essential tool. Many writers rely on these systems to draft and refine their work.
AI likelihood
Grammar
The same pass picks up the small slips a detector skips and a reader always spots.
The results was were consistent across all of the all three trials.
Other checkers hand you one percentage and call it done. This shows me the exact lines that read as machine-written, so I can send an editor straight to them. Cut our review time in half, honestly.
About half our freelancers lean on AI and don't mention it. Five minutes here and I know which pieces need a second pass before a client sees them.
An editor was sure a piece of mine was AI. It wasn't. I ran it, saved the report, and that settled it. I keep one for everything now.
I used to reread my own writing wondering if it sounded like a bot. Now I check, fix the couple of lines it flags, and move on.
It looks for the habits AI writing falls into: flat pacing, tidy structure, phrasing that could belong to anyone. The sentences that fit get marked. No checker is right every time, so you get a confidence score on each line instead of a plain yes or no.
See how we testYes. The first checks are free and need no account. Paste your text and read the report right away. Sign in when you want longer documents or a saved history.
It's built for text from today's models like ChatGPT, GPT-5, Gemini and Claude, and scores the writing habits they share.
No checker gets it right every time, and we won't pretend ours does. You get a confidence score on each sentence instead of a flat pass or fail, and you decide how much to trust it.
No. We use your text to run the check and nothing else. Nothing is saved to your profile unless you sign in and choose to keep it, and it's never published or sold.
No account needed for detection. Paste a paragraph and see where it stands.
Check my text