From the source
OpenAI adds invisible watermarks to ChatGPT text for EU compliance, with opt-in API watermarking.
OpenAI is adding invisible watermarks to ChatGPT and Codex text in the European Union to comply with the EU AI Act, using a technology called textGrain that embeds a statistical signal in word choices.
API watermarking will be opt-in worldwide, unlike Anthropic's mandatory approach.
Detection rates vary by text length and content, and editing can reduce detection significantly.
From the source
OpenAI says it will turn on watermarking for ChatGPT and Codex users in the European Union over the coming weeks. API watermarking will be opt-in worldwide, unlike Anthropic's mandatory watermarking for Claude, which applies globally regardless of how users access the models.
the-decoder.com
