Clean hidden marks out of text
Paste anything an AI helped you write. The marks come out; your code, links and emoji stay exactly as they are.
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Paste text on the left. Invisible characters appear here as amber marks, in the place they occupy.
Model watermark
separate mechanism
Some AI systems encode a statistical signal directly into word or token choices. It is not a character you can look for, so detecting it depends on the specific provider’s method.
The surface signals listed separately are characters, not a model watermark. Finding them does not indicate that text was generated by any particular system.
When a provider publishes a detection method, it is added here, and removal is developed and measured against it. The plan