Characterizing Web Search in The Age of Generative AI

• URL: http://arxiv.org/abs/2510.11560v1
• Date: Mon, 13 Oct 2025 16:04:03 GMT
• Title: Characterizing Web Search in The Age of Generative AI
• Authors: Elisabeth Kirsten, Jost Grosse Perdekamp, Mihir Upadhyay, Krishna P. Gummadi, Muhammad Bilal Zafar,
• Abstract summary: We compare Google, a traditional web search engine, with four generative search engines from two providers (Google and OpenAI)<n>Generative search engines vary in the degree to which they rely on internal knowledge contained within the model parameters v.s. external knowledge retrieved from the web.<n>Our results highlight the need for revisiting evaluation criteria for web search in the age of Generative AI.
• Score: 7.059953211629231
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The advent of LLMs has given rise to a new type of web search: Generative search, where LLMs retrieve web pages related to a query and generate a single, coherent text as a response. This output modality stands in stark contrast to traditional web search, where results are returned as a ranked list of independent web pages. In this paper, we ask: Along what dimensions do generative search outputs differ from traditional web search? We compare Google, a traditional web search engine, with four generative search engines from two providers (Google and OpenAI) across queries from four domains. Our analysis reveals intriguing differences. Most generative search engines cover a wider range of sources compared to web search. Generative search engines vary in the degree to which they rely on internal knowledge contained within the model parameters v.s. external knowledge retrieved from the web. Generative search engines surface varying sets of concepts, creating new opportunities for enhancing search diversity and serendipity. Our results also highlight the need for revisiting evaluation criteria for web search in the age of Generative AI.

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