Quick Answer: To get cited by ChatGPT, allow GPTBot in your robots.txt, publish a llms.txt file, structure your content with FAQ schema and question-based headings, and submit your sitemap to Bing Webmaster Tools.
Step 1 — Allow GPTBot
Add this to your robots.txt:
User-agent: GPTBot Allow: /
Step 2 — Publish llms.txt
llms.txt is the new robots.txt for AI. It tells models like GPT what your site does and which pages matter.
Step 3 — Submit to Bing
ChatGPT Search uses Bing under the hood. If you are not in Bing, you are not in ChatGPT.