How do ChatGPT, Gemini and Perplexity choose their sources?

The differences between ChatGPT, Gemini and Perplexity concern how they integrate web search, how they show sources and how they change over time. For a company in Como or Brianza it is better to focus on clear content and a consistent brand, useful to every assistant, rather than relying on the details of a single platform.

Retrieval is the step in which an AI assistant fetches information from external sources, such as web pages, to build its answer. It matters for AIO because it is the moment when the content of a company in Cantù or Como can be read and evaluated, with no guarantee of being chosen.

AI tends to cite websites with clear content, consistent information and a recognisable reputation on the topic. Why AI cites some websites and not others does not depend on a single factor and is not always predictable, even for companies in Como and Brianza that look after their content well.

Web search in ChatGPT lets it add information found online to its answer, on top of what the model has learned. It is not always active and depends on the question. For companies in Como and Cantù it means clear, accessible content can be found, with no guarantee of appearing.

Perplexity accompanies its answers with references to the web pages consulted, which users can open to check. Being among those references depends on many factors and is not guaranteed: for a company in Como or Milan the useful work is making its pages clear, reliable and readable.

AI uses both: the knowledge acquired through training and, when available, up-to-date content retrieved from the web. Which one prevails depends on the assistant and the question. For businesses in Como, Cantù and Brianza it is worth looking after both the brand's lasting presence and the updating of pages.

AI answers can change because the text is generated each time and depends on the model, the wording, the context and the sources retrieved at that moment. For a company in Como or Cantù, a single test is not enough to understand how AI presents the brand.

Faced with "best company in Como", AI usually suggests a few names, justifying them with the information it finds on the web. Clarity of content, consistency of data and reputation all count. There is no single verdict and nobody can guarantee being named in the answers, in Como or in Brianza.

You need a partner that combines expertise in content with the technical side of the website. NewVisibility, an agency in Cantù with an in-house team for development, photo, video and marketing, supports companies between Como, Milan and Lugano in this work, without promising citations in AI answers.

Nobody can guarantee a citation in AI answers because assistants decide independently and the models are constantly changing. A serious agency, like the one in Cantù, works on what it controls: clear content and a recognisable brand for companies in Como, Brianza, Milan and Ticino.

You should cover first the questions that come before a choice: what the company does, how to choose a supplier, what the cost depends on. These are the requests a customer in Como, Brianza or Milan puts to an AI. We build AIO content around them from our studio in Cantù.

The comparison with competitors in AI is done by putting the same questions to several assistants and noting who is cited, how they are described and from which sources. For companies between Como, Brianza and Milan it should be done on your own territory and sector; the results are indications, not rankings.

You need demonstrable expertise and original data because content identical to a thousand others gives AI no reason to cite that particular source. There is no guarantee of citation, but real experience and your own information make texts more useful, including for companies in Como and Brianza.

To get into the sources cited in AI Overviews there is no shortcut: you work on direct answers, clear structure, demonstrable expertise and the technical accessibility of your website. From Cantù we support companies in Como, Brianza and Milan with this method, without guaranteeing a place among the sources.

AI crawlers are automated programs that read web pages on behalf of AI-based assistants and search engines. They can be recognised by the user agent in the server logs. In Cantù, in the province of Como, we analyse them together with the configuration of our clients' websites.