[MrCoffee7]

Google's AI search overview is designed to quickly pull and summarize information from its massive web index, while ChatGPT search focuses on providing detailed conversational responses that may require more processing time. The speed difference users notice comes from fundamental differences in how these systems work - Google leverages its existing search infrastructure and pre-indexed web content, while ChatGPT processes queries through a more complex language model that generates responses token by token. Also, I would imagine that ChatGPT is using RAG more in generating some of its responses, and RAG is I/O bound. I/O bottlenecks are orders of magnitude slower than a process that could be completed mostly in memory.