Anthropic to label all AI text in Claude to meet EU requirements
Anthropic will begin labelling all AI-generated content from the Claude model family, including plain text, to comply with the requirements of the EU AI Act.

What happened?
Anthropic has announced that its AI model, Claude, will begin labelling all AI-generated content, including plain text. This measure follows the company's signing of the EU AI Act's code of practice for transparency under Article 50(2). The objective is to ensure that AI-generated content is clearly identifiable.
Key facts
| Regelverk | EU AI Act Artikel 50(2) |
|---|---|
| Publiceringsdatum | 11 augusti 2024 |
| Tillverkare | Anthropic |
Why it matters
The decision is a direct result of the EU's tightened regulatory framework for artificial intelligence, which mandates openness and traceability. By labelling text as well, Anthropic is setting a new standard for how AI developers must manage transparency towards users and regulatory authorities.
Who is affected?
This development affects developers, businesses, and end-users who utilise Claude's services to create content. It also impacts publishers, reviewers, and public authorities by facilitating the identification of AI-generated material.
Impact on the EU
Adopting the code of practice under Article 50(2) of the EU AI Act means that Anthropic's labels correspond directly with the EU's statutory transparency requirements. This applies to all users and businesses within the EU that use Claude to generate text and other content.
What else you should know
The practical implementation of technical watermarking for plain text has sparked significant interest within the industry, as invisible and robust watermarking of continuous text has historically been a complex challenge.
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