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There are actually good ways to try and detect AI-generated content, but the whole “em-dashes implies generated content” approach is intellectually lazy. Hint: check for fixed-width space characters, weird Unicode hyphens, zero-width joiners, ellipsis characters, right and left quotation marks, etc.

Ingvar Stepanyan

@rreverser.com

14 June 2025

But AI is very unlikely to use those as it hasn't seen them often in real human-produced input texts.

Jordan McQueen

@jm.dev

No, it literally uses them everywhere. You can check the output for yourself. I think they’ve added special passes at the end to purposefully insert these sentinel values to make it easier to detect generated content. Maybe it’s something they’re even doing for anti-cheating purposes.

14/6/25, 12:16 pm1 repost2 likes

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