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How Anthropic plans to watermark Claude's AI-generated text

Aug 14, 2026, 11:24 PM · by BleepingComputer

It could soon become easier to identify AI-generated content, even if it's not the usual "It's Not X, it's Y" type of post you'd come across on LinkedIn and other socials.

As you may be aware, the EU now requires AI companies serving its market to mark their AI-generated content so it's easier to identify.

Anthropic and several other major AI providers have agreed to comply with the EU's Code of Practice, with Anthropic becoming one of the first companies to share details about how it will implement watermarking across Claude.

Anthropic has also confirmed that a regular user won't be able to see the watermark.

According to the company, it has no practical impact on the quality or content of Claude's output, including creativity and readability.

For those unaware, invisible watermarking and provenance systems are already being used for some AI-generated images, and text-based output will now follow a similar concept, although the underlying implementation is different.

Source: BleepingComputer