How to Remove AI Watermarks From Text

Start here, because it determines whether the job is exact or probabilistic. Text from a provider that documents a token-choice watermark — Gemini, and Claude since August 2026 — carries a statistical signal and no added characters. Text from a provider with no documented text watermark may still carry stray invisible characters from the copy path.

Our provider status tracker records what each provider documents, with sources and a verification date, so you are not guessing.

Keep an untouched copy before you change anything. You will need it to compare meaning, numbers, names, formatting and citations afterwards — and a semantic rewrite is precisely the kind of edit that can quietly alter a figure or a hedge.

Scan for zero-width spaces, direction controls, soft hyphens, tag characters and unusual Unicode spaces, and remove them. This part is exact: a good tool tells you which code points it found and how many.

Be conservative. Do not strip zero-width joiners and non-joiners by default, because they are essential to emoji sequences and to scripts including Arabic, Persian, Hindi and Malayalam. Do not "normalise" every non-ASCII character, which mangles legitimate text.

Change syntax, sentence boundaries, clause order, transitions and vocabulary across the whole passage. A synonym pass is not enough: Google describes the method as robust to modifying a few words and mild paraphrasing, and Anthropic contrasts light editing, which probably will not remove the mark, with a complete rewrite, which will.

Note the honest limits. Short passages give a rewrite little room. Dense factual text and code constrain how much can legitimately change — and they also carry less watermark to begin with, which cuts the same way.

Compare every factual claim, number, name and quotation against the original. For high-stakes content, have a qualified human review it.

Then be realistic about what you have achieved. For most providers no public detector exists, so nobody — including us — can measure the residual signal. You have reduced a signal, not proven its absence, and a detector score is not proof of authorship in either direction.