Anthropic watermarks all Claude outputs globally
Anthropic will embed invisible watermarks in all Claude-generated text and sign files using the C2PA standard. New models from August 2026 will have labeling built in, and detection tools are planned for third-party verification.
First seen 11 Aug, 08:45 UTC on The Decoder4 sourcesLast update 38d ago
AnthropicPolicy · 11 Aug
Claude
Policy or regulatory step
What the sources say
Linked, never rewritten. Official means the lab itself.
Official0
No word from Anthropic yet.
Coverage3
The Decoder· 11 Aug, 08:45Anthropic watermarks all Claude outputs globally with marks that "may persist through some editing"SiliconANGLE· 11 Aug, 20:39Anthropic to start watermarking Claude-generated text, imagesThe Decoder· 17 Aug, 11:43Anthropic watermarks Claude's output, but critics question the tradeoffsHow it unfolded
Every source in the order it appeared. Times in UTC.
11 Aug 08:45The Decoder Anthropic watermarks all Claude outputs globally with marks that "may persist through some editing"11 Aug 20:39SiliconANGLE Anthropic to start watermarking Claude-generated text, images16 Aug 21:53Hacker News Anthropic's 'watermark' text adulteration in Claude is a perversion of writing17 Aug 11:43The Decoder Anthropic watermarks Claude's output, but critics question the tradeoffs