Writers complained that the chatbot's overuse of em dashes made them avoid the punctuation in their own writing. Other ChatGPT users had trouble getting the tool to stop using them.

Controlling punctuation is a main concern for users who depend on ChatGPT for professional, academic, or publishing tasks.

ChatGPT now follows custom instructions to reduce em-dash overuse. Here’s why it matters, what to expect and five simple ...

If you've used ChatGPT — or seen AI-generated text — you've likely spotted an em dash. The punctuation mark is not new, but it has been flung into the forefront of social media and everyday writing ...

ChatGPT was using the em dash excessively even when users explicitly asked it to stop. Sam Altman recently posted about a new ...

OpenAI's recent GPT-5.1 update enhances the model's ability to adhere to user formatting requests, specifically regarding ...

OpenAI has not achieved its goal of developing a superintelligence or artificial general intelligence, nor has it cracked its planned construction of an autonomous “AI researcher.” But it has figured ...

It’s rare that a punctuation mark becomes grist for the online rumor mill. But recently, an uptick in focus on AI and its impacts has brought a Blake Lively-esque level of attention to the em dash, ...

Novelist Cormac McCarthy has spent twenty years editing what feels like the opposite of a novel: scientific papers by faculty members and postdocs at the Santa Fe Institute. Some of the scientists he ...