ChatGPT-User
AI & BotsOpenAI's on-demand fetcher, triggered when a live ChatGPT user asks the assistant to open or read a specific page -- not a bulk crawler.
Unlike GPTBot (training data) or OAI-SearchBot (search retrieval), a ChatGPT-User request is triggered directly by an end user's action inside a live ChatGPT conversation. A visit from this user-agent means a real person is actively reading your page through ChatGPT right now, not that it was swept up in a bulk crawl.