# Trivially bypass text watermarks by requesting a Base64 response

> Source: <https://news.ycombinator.com/item?id=49333167>
> Published: 2026-08-17 16:01:55+00:00

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Anthropic plans to release text watermarking based on SynthID, which modulates the PNRG behind the token choosing mechanism deterministically in a way that lets another tool later estimate whether text was written by AI. This is trivial to bypass that, it's current form: 1. Ask for the response/essay/email encoded in base64 2. Decode it using https://www.base64decode.org/ While the encoded text will follow the watermarked distribution, the decoded text will not. | |||||||||||
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