No mention of Gemini in their blog post on sge And their AI principles doc says
We acknowledge that large language models (LLMs) like those that power generative AI in Search have the potential to generate responses that seem to reflect opinions or emotions, since they have been trained on language that people use to reflect the human experience. We intentionally trained the models that power SGE to refrain from reflecting a persona. It is not designed to respond in the first person, for example, and we fine-tuned the model to provide objective, neutral responses that are corroborated with web results.
So a custom model.
I don’t know man. There’s a lot shittier business practices out there than paying to be the default search engine - which is laughably easy to change on any browser. Like marketplaces and services that pay to be exclusive sources of content and then use the fact that they’re the only source for most content to force extortionate deals on content creators and enshitify every aspect of the end user experience. Just to name one.