What is ChatGPT Search?
ChatGPT Search is the mode inside ChatGPT that fetches live web pages and cites them, instead of answering purely from what the model learned during training.
ChatGPT Search turns a normal ChatGPT reply into a retrieval task. Instead of drawing only on the patterns the model learned during training, it goes out, fetches current pages, and builds the answer around what it finds there, then shows the sources it used. This is what people mean by grounding: tying an answer to something retrievable right now rather than to memorized training data.
It matters for site owners because two different crawlers are involved, and they do different jobs. OAI-SearchBot builds the index that ChatGPT Search draws candidate pages from, while ChatGPT-User does the live fetch during an actual conversation. A page can be well indexed by one and still miss the other, fully crawlable for indexing but blocking the live fetch, or the reverse. Both need to work for a citation to happen.
The common misunderstanding is treating ChatGPT Search visibility as a separate discipline requiring new tricks. In practice it rewards the same things organic search does: clear, fetchable, well-structured pages that directly answer a specific question, with nothing blocking the two crawlers involved.
Related
- GroundingGrounding is when a model answers using documents retrieved at the time of the question, rather than only from what it absorbed during training.
- OAI-SearchBotOAI-SearchBot is the crawler OpenAI uses to build the index ChatGPT cites from. It is not the training crawler, and blocking it is a different decision from blocking GPTBot.
- ChatGPT-UserChatGPT-User is the agent that fetches a page in real time when a user's question requires it, as opposed to crawling in advance.
- Retrieval-augmented generation (RAG)Retrieval-augmented generation is the technique of retrieving relevant documents and giving them to a model as context before it answers.
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