Anthropic's Claude just got a hidden watermark that follows your AI-written text everywhere you paste it

Anthropic is embedding "imperceptible" machine-readable watermarks directly into text generated by new Claude models, making ...
Interesting Engineering on MSN

Copy-paste no more: Anthropic puts invisible watermarks on Claude text under EU rules

Anthropic will add machine-readable watermarks to text generated by new Claude models starting August ...
AzerNews

Anthropic introduces machine-readable watermarks for claude content

US-based artificial intelligence company Anthropic began adding machine-readable “watermarks” to text and files generated by its new Claude AI models on August 2, AzerNEWS reports.

Anthropic to implement machine-readable marking across new AI models to ensure content transparency

"Marking works everywhere you use Claude. Marks will apply to output from supported Claude models across Claude Platform (API), Claude, Claude Code, Claude Cowork, and Claude Tag, and wherever Claude ...

Anthropic To Mark Claude Text & Files Under EU AI Act Code

Anthropic will embed invisible watermarks in Claude text and sign generated files. Detection tools are still unpublished, and marks can appear on edited human writing.

Anthropic's Claude will invisibly watermark AI-generated text: How it works

Anthropic says new Claude models will embed machine-readable watermarks in generated text that can survive copy-pasting and some editing ...
NewsBytes

Anthropic adds hidden machine readable marks to Claude in EU

Anthropic's Claude models will embed machine-readable watermarks in AI-generated content starting August 2, 2026, under the EU's AI Act to enhance transparency.