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Opus 5.5 AI model has nearly eliminated em dashes in its outputs, as noted by ArenaAI on X.
The article ponders whether AI is subtly changing human vocabulary and punctuation habits, sparked by a post about Claude's word choices and em-dash avoidance.
The article discusses how students are deliberately avoiding proper punctuation like em-dashes to avoid being flagged as AI users by detection tools, highlighting an unintended consequence of AI writing detection in education.