Eu AI Act — Simon Carter

security governance category

Security & Governance

OpenAI's textGrain embeds invisible watermarks in AI text: here's what changes for you

OpenAI's textGrain watermarks AI-generated text statistically. API opt-in opens 5 October 2026; EU ChatGPT and Codex users get it automatically.

5 October 2026

security governance category

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.

15 August 2026

security governance category

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.

12 August 2026