Anthropic shares more details about how Claude’s new watermarks will work

Anthropic has released details on how it will implement watermarking for its Claude chatbot to comply with the EU AI Act. The company explains that the watermark is undetectable to users but allows for the identification of AI-generated content without impacting output quality.
Why it matters
As AI regulation increases, watermarking is becoming a critical technical standard for transparency and content provenance.
Anthropic published a blog post Friday seeking to answer some basic questions about how it will watermark the text generated by its chatbot Claude. Such as: How will the watermarking actually work? Can it be hidden with editing? And how does this affect code?
Claude users have been debating the move since the company revealed earlier this week that it would be doing this watermarking to comply with the EU AI Act’s Transparency Code, which requires AI companies to use systems that make it possible to identify AI-generated content.
On Reddit, for example, one poster characterized this as a conspiracy against innocent Claude users , while another claimed, “The only reason you wouldn’t want this is to lie to people.” And Business Insider reports that “dozens” of users on X have claimed to cancel their Claude subscriptions as a result.
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