OpenAI will add invisible textGrain watermarks to eligible ChatGPT and Codex text in the EU, allowing AI-generated content to be identified by specialised detectors.
A Lasso Security study finds that LLM watermarking can alter AI agent tool calls, arguments and refusal behaviour, raising questions for agent testing.
Rezolve AI has launched Rezolve Provenance to mark, sign and verify AI-generated and AI-modified text, images, voice and video.
Anthropic is adding invisible watermarks to Claude-generated text and provenance metadata to files as EU AI transparency requirements take effect.
