GoKawiilA market for removing AI watermarks has sprung up days after Anthropic disclosed switching on invisible marks in everything Claude writes, spanning a GitHub project with over 4,500 stars, a cluster of newly registered web tools, and at least one established AI detection evasion service.
None of the claims about defeating the text watermark can currently be checked, though, because Anthropic has not yet published how it works or released the detector that would show whether a cleaned document still carries the mark.
Who is offering what
Among the largest is watermarks-remover, an MIT-licensed tool from software developer Guillaume Meyer, founder of Memo.
It began as a Claude-only agent skill and now advertises coverage of Claude, Gemini and SynthID-Text, OpenAI provenance surfaces, and open-weight models using Kirchenbauer-style marks.
Meyer's post on social media quickly gained momentum surpassing 2 million views:
watermarks-remover now supports watermarks from OpenAI and Gemini in addition to Claude.https://t.co/OxSdnAjEGe — Guillaume Meyer (@guillaumemeyer) August 11, 2026
Alongside it sit repositories including claude-watermark-cleaner, remove-ai-watermarks, and noai-watermark, plus a cluster of web tools that have appeared since: claudewatermark.com, claudewatermark.rip, gptcleanup.com and claudewatermarkremover.app.
StealthGPT, which sells AI detection evasion, added a Claude watermark remover to its use-case pages. Another, Human Writes, advertises bypassing Turnitin and GPTZero on essays and assignments, claims to strip Claude's watermark, and carries a footer telling users it must only be used in compliance with academic integrity policies.
StealthGPT's own comparison table caveats that "no tool guarantees 100% bypass, detector models update regularly," on the same page where it announces it now removes Claude watermarks.
... continue reading