The watermark is statistical
SynthID-Text influences token selection probabilities. There are no hidden characters to delete and no metadata to strip.
Non-Claude rewrite engineRewrite the pattern.
Rewrite the pattern.
Keep the meaning.
Parity-Preserving Anthropic SynthID-Text Watermark Scrubber
A clean-room paraphrasing pass that changes statistical authorship without flattening your ideas, facts, or formatting.
Open the scrubber01
Source material
Paste Claude-generated text
0 words0 chars
02
Clean rewrite
Meaning intact. Pattern replaced.
Your rewrite will appear here
Code fences return untouched. Structure and facts stay put.
Ready0 chars
No text is stored by Unthropic. Requests are processed in real time.
DEEPSEEK V4 FLASH / LUNA FALLBACK
Why paraphrasing works
A watermark you can’t see needs a rewrite you can.
A new model breaks the pattern
A full rewrite through a non-Claude model samples a different token path while retaining the original claims and structure.
Protected content stays exact
Fenced code is masked before the request and restored verbatim afterward, keeping syntax and variables out of the rewrite path.
Common questions
The fine print,
made clear.
Why can’t a regex remove SynthID-Text?+
Because the signal lives in the probability distribution across token choices, not in a detectable string or character sequence.
Why specifically use a non-Claude model?+
Rewriting with a model from a different family avoids reproducing Claude’s token-selection signature. The goal is a genuinely independent generation path.
Will it preserve Markdown and code?+
The rewrite prompt preserves Markdown structure, while fenced code blocks are removed from model context and restored byte-for-byte after rewriting.