01 · WHY & HOW DOES THIS WORK?
WHY. Frontier labs are baking invisible watermarks into generated text. The mark is a statistical bias in word choice: the model is nudged toward a secret, per-position "green list" of tokens, and a detector later flags text that leans green too hard. Change enough words and you wash the bias out.
HOW IT WORKS (the KGW method most labs use)
- Watermarking: for each token, hash the preceding tokens plus a secret key, use that hash to split the vocabulary into a green set and a red set, then boost the odds of sampling green. Repeat every token and the finished text leans green in a way that reads natural but is not.
- Detection: recreate the hash from the visible words, rebuild each green set, then test whether green words appear far above the ~50% you would expect by chance. A high green rate reads as "probably machine-written."
- This tool: swapping words for WordNet synonyms attacks both halves. Every substitution changes the tokens, so every downstream hash drifts and the green sets stop lining up. The swap itself also trades green words for whatever synonym lands, often red. Push the replacement rate up and the green bias decays toward coin-flip noise.
HONEST CAVEATS. Watermarks really are fragile to word-substitution plus syntax attacks, and short or highly predictable text ("2+2=4") barely carries a mark to begin with. This is the crudest possible version of that attack and it usually produces magnificent nonsense. But it is un-watermarked nonsense.
* A joke project. Do not file your dissertation through it.
02 · TERMS OF USE
WHAT THIS IS. declauder is a toy. It exists to demonstrate, in the crudest way possible, how fragile text watermarks are. It is not a product, not a service you can rely on, and not a tool for evading anything that matters. Do not use it in reality. Do not use it for schoolwork, journalism, legal filings, or anything with consequences.
WHAT WE COLLECT. We may collect the inputs you paste and the outputs the machine produces, to help improve the service. We may also collect your IP address, approximate country, browser user agent, timestamps, and the settings you used, as part of analytics, to see whether anyone actually uses this thing and how. Logs may be kept, inspected, or deleted at any time. Do not paste anything private, personal, confidential, or otherwise regrettable.
NO WARRANTY. ALL RISK IS YOURS. The service is provided as-is and as-available, with no warranty of any kind, express or implied. The output is usually magnificent nonsense, and that is the intended behaviour. By using declauder you accept ALL risk arising from that use, including whatever happens if you ignore the paragraph above. The service may change, break, or vanish at any time without notice.
FAIR USE. Do not hammer the API, attempt to break the machine, or use it for anything unlawful. If you use declauder, you agree to all of the above.