En Dash vs. Hyphen. Chicago-style pizza, on the other hand, needs a hyphen. So does any other instance in which you’re only linking a word to the one directly next to it.

Viral posts and clips on social media suggest the em dash is the product of AI chatbots, with some calling the punctuation mark a 'ChatGPT hyphen.' ...

Hyphen Vs. Dash. A hyphen and a dash are not the same thing -- a hyphen is a short line that ties a word or words together, while a dash is a longer line that separates phrases in a sentence.

Some people think AI writing has a tell — the em dash. Writers disagree. Em dashes have been derided as the “ChatGPT hyphen” — a punctuation mark overused by artificial intelligence.

While spaces aren’t required when using em dashes, Reed said she’s noticed it feels very ChatGPT-coded to leave them out. The AI app seems to omit the space.