SMRTR AIApr 21, 2025NewsBytes

ChatGPT's new models are adding watermarks in generated text: Report

SMRTR summary

OpenAI's new GPT-3 and GPT-4 mini models are embedding unique character watermarks in generated text, discovered by Rumi Technologies. The watermarks use special Unicode characters, mainly Narrow No-Break Spaces, and appear only in longer outputs. This feature could help identify AI-generated content, though it can be easily removed once users are aware of it.

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