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Morning Edition · Saturday, August 29, 2026Published at 2:21 AM EDT · New York
Anthropic Watermarks Claude Text Using Google DeepMind's SynthID Method
Every Claude model released after August 2 marks its output, and a detected watermark means Claude processed the text, not that Claude wrote it.
Anthropic has explained how its text watermark works, and the method is not its own. Claude's watermark is a version of SynthID-Text, the approach Google DeepMind published in Nature in 2024, which biases the model's token sampling in a pat…
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