Em dashes have become what many believe to be a telltale sign of AI-generated text over the past few years. The punctuation mark appears frequently in outputs from ChatGPT and other AI chatbots, sometimes to the point where readers believe they can identify AI writing by its overuse alone—although people can overuse it, too.
On Thursday evening, OpenAI CEO Sam Altman posted on X that ChatGPT has started following custom instructions to avoid using em dashes. “Small-but-happy win: If you tell ChatGPT not to use em-dashes in your custom instructions, it finally does what it’s supposed to do!” he wrote.
Why are all these articles lying. It’s still not following the em dash rules, you just now have a preference setting to have it not use the em dash.
It doesn’t understand how to use it any better than before.
It no longer uses any em dashes for me.
So someone was smart enough to set the preference on as a default.