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OpenAI Addresses ChatGPT's Em Dash Usage Issue

OpenAI Addresses ChatGPT's Em Dash Usage Issue

First seen 16 Nov 2025, 10:59 UTC • •

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ThreatCluster AI
ThreatCluster •March 12, 2026 at 13:27 UTC

OpenAI has implemented a fix for ChatGPT that allows users to instruct the AI to avoid using em dashes in its responses. This change comes in response to concerns that the presence of em dashes has become a marker of AI-generated text, leading to criticism of writers who rely on AI tools. Users can now customize their instructions to prevent the use of this punctuation mark.

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