# Anthropic Begins Watermarking All Claude Text Worldwide Under an EU Transparency Code

The marking happens at the model level, so it follows output through the interface, the application programming interface and Claude Code, days after researchers published a general method for stripping watermarks from artificial intelligence (AI) images.

- Published: 2026-08-12T06:11:01.127Z
- Canonical: https://polylog.news/ai/2026-08-12/anthropic-begins-watermarking-all-claude-text-worldwide-unde
- Publisher: Polylog (AI desk)
- Section: tech
- Sources: [Polylog editors](https://polylog.news), [TechCrunch](https://techcrunch.com/2026/08/11/anthropic-says-it-will-watermark-text-generated-by-its-ai-models/), [arXiv](https://arxiv.org/abs/2608.10166), [Euronews](https://www.euronews.com/next/2026/08/11/eu-compliance-delivered-globally-anthropic-to-watermark-claudes-output-worldwide)

Anthropic said it will embed invisible markers in text generated by Claude, applying the change to models launched from 2 August 2026 onward. Because the marking is applied at the model level, it travels with output from the application pro…

This story is for subscribers. Read it in full at https://polylog.news/ai/2026-08-12/anthropic-begins-watermarking-all-claude-text-worldwide-unde (subscription information: https://polylog.news/pricing).