Security & Governance
How Claude's invisible watermark works: and what it means for you
Anthropic explains its SynthID-Text watermarking for Claude: how it works, what it survives, its limits, and a detection API coming soon.
Topic
Watermarking
3 posts about Watermarking from Simon Carter.
Security & Governance
Anthropic embeds invisible watermarks in all Claude-generated content, worldwide
From 2 August 2026, all Claude models watermark generated text and attach C2PA metadata to files: globally, with no opt-out.
Security & Governance
OpenAI adds dual-layer provenance to AI images using C2PA and Google SynthID
OpenAI is combining C2PA metadata and Google SynthID watermarking to help people verify whether an image was generated by OpenAI tools.