AI Checker. Detect AI Writing in Seconds.
Need to check whether content was written by AI? Lunchbreak analyzes any text for the patterns, repetition, and structure that AI models leave behind, and shows you what each detector sees.
An AI Checker That Shows Its Work
One passage. Every checker. Nothing hidden.
They Checked Before Submitting.
Until they checked with Lunchbreak.
Know What the Detectors See.
Check any text against the major AI detectors before it goes anywhere.
Run a Check →AI Checker: Common Questions
Quick answers to what people ask us about AI detection.
An AI checker looks for the statistical fingerprints of generated text: unusually predictable word sequences, uniform sentence length, and repeated structural patterns that human writing rarely sustains.
Regularly. Formal, careful, well-structured human writing is exactly the kind most likely to be misread as AI. That is why a single checker result should never be treated as evidence on its own.
Longer passages score more reliably than a paragraph. Most checkers need a few hundred words before their result means much, which is why a single flagged sentence rarely tells you anything.
Look at which sentences were flagged and why. Often it is one or two formulaic lines, not the whole piece. Rewrite those in your own words and check again.