Claude Fable 5.1 ships imperceivable text watermarking — a warning for attorneys
Coolgrnmen · reddit · 2026-09-02
A Reddit user reminds that Fable 5.1 embeds 'imperceivable' watermarking in its output text — required by EU regulations but implemented worldwide, and easy to miss if you click through prompts.
Warning for attorneys: many courts and judges require disclosure of generative AI usage in filings. Since an API can check for the watermark, courts could eventually verify whether documents are AI-generated — lawyers who fail to disclose risk sanctions.
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