Anthropic will watermark text generated by its models, including Claude, to comply with European regulations, the company now says. Anthropic said that all models released after August 2 will automatically have tech to watermark both computer-generated text and files. The company said it will extend support for older models as well, adding that the watermark will travel when users copy and paste the text. “Because the watermark is part of the text, it will travel with the text when it’s copied and pasted elsewhere, and may persist through some editing. The company noted that watermarking will apply to different products like Claude platform API, Claude, Claude Code, Claude Cowork, and Claude Tag.