Does Originality.AI detect ChatGPT?
Yes
Yes, and it is tuned to flag aggressively, which is a deliberate product choice.
How it works
Built for publishers who want to reject AI drafts from freelancers, it errs toward calling borderline text AI rather than letting it through.
The part people miss
Aggressive tuning means more false positives on heavily edited human writing. That trade-off is intentional and worth knowing before you trust a single score.
Flagged for something you wrote yourself?
There is a right order to handle it in, and editing the document first destroys your best evidence.