Anthropic explains how Claude’s invisible text watermarks will work
Anthropic has clarified how it's planning to apply invisible watermarks to Claude-generated text in order to comply with Europe's AI transparency rules. On Friday, Anthropic announced that Claude's text marking system is "a version of the SynthID-Text approach" - an open-source watermarking technology developed by Google DeepMind that creates detectable patterns using wording probabilities. This watermarking feature, alongside C2PA support for Claude-processed images, is being
Get smart on it
Anthropic is adding invisible watermarks to text generated by Claude in order to comply with European Union regulations requiring synthetic content to be detectable as artificially generated. The watermarks work by making subtle choices about which words to use in cases where multiple words would convey the same meaning, creating patterns that are undetectable to readers but can be identified by someone with the proper key. The company states these watermarks will not affect cost, quality, or content of Claude's outputs. This requirement applies to other major AI developers as well, with at least one competitor already offering similar watermarking technology since 2024.
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