India, Nov. 17 -- If you're tired of ChatGPT filling your responses with em-dashes, the long dash that has practically become the bot's calling card, there's now a simple way to stop it. With the rollout of OpenAI's new GPT-5.1 model, users can finally instruct ChatGPT not to use em-dashes, and this time, the chatbot actually listens.

On desktop or mobile:

-Click your profile icon in the bottom-left (desktop) or top-right (mobile).

-Select Settings.

Inside Settings:

-Tap Custom Instructions.

-You'll see two boxes:

"What would you like ChatGPT to know about you?"

"How would you like ChatGPT to respond?"

You'll be using the second one.

In the "How would you like ChatGPT to respond?" box, type something clear and direct, such as: ...