Anthropic will soon offer a watermark detection API that lets third parties check whether text was written by Claude. The technology builds on Google's SynthID method and tweaks the randomness during word selection without affecting text quality, Anthropic says. The approach has limits with fact-heavy text, code, and heavy rewriting.

Anthropic has revealed how Claude will mark AI-generated content — and the approach is more...

Claude-generated text and files will carry watermarks to comply with new European Union transparency regulations.