Set custom instructions so you stop repeating yourself
features & settings
// what it does
Custom Instructions (Settings > Personalization, or Ctrl+Shift+I) let you tell ChatGPT what to know about you and how to respond, applied to every new chat automatically. Free and Go users get 1,500 characters; Plus, Pro, Business, Enterprise, and Edu get 5,000. Changes take effect immediately across all chats, including open ones.
// prompt
> Be concise and skip the preamble. Prefer bullet points over paragraphs. When code is involved, show the code first and explain after. Ask a clarifying question if my request is ambiguous.// gotcha
Instructions are not shared with people who view your shared links, but they are used to improve the model unless you opt out in Data Controls. Inside a Project, project instructions override your global ones.