GoKawiilIt 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.
While the change is being introduced to comply with the EU AI Act, Anthropic says the watermark will initially be applied to Claude-generated text worldwide.
"We’re applying watermarking globally at launch because we don't yet have a durable way to scope it by region," Anthropic explained in a blog post.
Anthropic says future Claude models will generate watermarked text. Models launched before August 2, 2026, are covered by the EU's transition period, and Anthropic says it is working to add watermarking to those models over the coming months.
Claude's watermark doesn't add hidden characters
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