AI NewsAnthropic Adds Hidden Watermarks to Claude AI Text to Help Identify AI-Generated Content

Anthropic Adds Hidden Watermarks to Claude AI Text to Help Identify AI-Generated Content

9:19 AM IST · August 12, 2026

Anthropic on Tuesday announced that it is adding invisible watermarks to text generated by its artificial intelligence (AI) models. According to the company, the content will have a hidden signal that remains even when it is copied and pasted elsewhere. The move builds upon Anthropic's decision to sign the European Union's AI Act Article 50(2) Code of Practice on Transparency of AI-Generated Content. Anthropic says Claude models launched from August 2, 2026, will support the marking system from day one, and the feature is rolling out globally.