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Claude Watermark

Claude Watermark - Check and clean AI text artifacts

$9.00
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Free tool to check whether your Claude or ChatGPT text carries detectable artifacts, and clean them. Straight answers on Anthropic's text watermark: what it is, which models carry it, and what actually removes it.
Compatibility

Claude Watermark is compatible with the following platforms and devices:

  • Web-Based
  • Cross Platforms
Integrations

Claude Watermark can be integrated with the following third-party platforms and tools:

N/A

* For the complete list of available integrations visit Claude Watermark website.
Subscription Types

Claude Watermark offers the following subscription types:

  • Freemium
  • Paid

Billing options include the following:

  • Monthly
  • Buy Credits
  • One-Time Payment

Membership packages:

There are 6 membership packages at Claude Watermark.
  • API is Not Available.
  • Community Hub is Not Available.

Claude Watermark Review: An In-Depth Overview

chat gpt claude claude code gpt

Claude Watermark is a free web tool that tells you whether a piece of text carries the tell-tale artifacts AI assistants leave behind, and then cleans them out. Paste anything you copied out of Claude or ChatGPT and the checker scans for Claude's copy-paste HTML classes, zero-width characters, exotic Unicode spaces and smart punctuation, then shows you exactly what it found and where it sits in your text.

Cleaning runs in two passes. The first strips the mechanical artifacts: invisible characters, odd spacing, curly quotes. Em-dash replacement is on by default, because that single character is the loudest AI tell in ordinary prose. The second pass is an optional human rewrite that smooths the even rhythm and uniform sentence length that make machine text read as machine text.

The site also keeps a live table of which Claude models carry Anthropic's text watermark, updated as new models ship, plus a plain-language teardown of what that watermark actually is and what does and does not affect it. To be clear about scope: the tool does not remove Anthropic's statistical watermark, and we say so plainly on the page. What it removes are the copy-paste artifacts and stylistic tells that are genuinely removable.

New accounts get 10 free credits with no card required. Paid credits start at $9 per month, or $12 as a one-time top-up.

Noteworthy

Features & Highlights

  • Artifact checker: paste any text and it scans for Claude's copy-paste HTML classes, zero-width characters, exotic Unicode spaces and smart punctuation, then shows exactly what it found.
  • Two-pass cleaning: a mechanical pass strips invisible characters and normalises punctuation, then an optional human rewrite pass varies rhythm and sentence length.
  • Em-dash replacement is on by default, since the em dash is the single loudest AI tell in ordinary prose. Toggle it off if you want to keep them.
  • Live model table showing which Claude models carry Anthropic's text watermark, kept current as Anthropic ships new models.
  • 10 free credits on signup, no card required. Plus an honest teardown page: we do not claim to remove Anthropic's statistical watermark.
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