Grammar Girl: For Writers and Language Lovers.
Grammar Girl: For Writers and Language Lovers.

Why AI loves em dashes, with Sean Goedecke

Feb 05, 2026 · 23m

<p>1157. This week, we look at AI em dashes with Sean Goedecke, software engineer for GitHub. We talk about why artificial intelligence models frequently use em dashes and words like "delve," and how training on public domain books from the late 1800s may have influenced these patterns. We also look at the role of human feedback in shaping "AI style."</p><p><a href="https://www.seangoedecke.com" target="_blank">www.SeanGoedecke.com</a></p><p>🔗 <a href="https://www.patreon.com/cw/grammargirl" target="_blank">Join the Grammar Girl Patreon.</a></p><p>🔗 <strong>Share your familect recording in </strong><a href="https://www.speakpipe.com/GrammarGirl" target="_blank"><strong>Speakpipe</strong></a><strong> </strong>or by leaving …

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