Anthropic plans to add an invisible mark to AI text—as the industry scrambles to police AI slop
Fortune 41 ● 7 sources
Anthropic plans to add an invisible, machine-readable watermark to text produced by Claude to help identify AI-generated output. Starting with Claude models released on or after August 2, the mark is designed to persist through copy and paste (and some edits) while aligning with the EU AI Act’s transparency requirements. This changes how Claude text is handled and detected across the chatbot, API, and Claude Code by making synthetic provenance machine-checkable, though it can be disrupted by heavy rewriting or translation.