I had a very entertaining time asking search engine AI about various bacteria when writing an open book exam.

Ask how X bacteria acts in the oral cavity, and the AI summary calls it a beneficial species

Ask how X bacteria relates to periodontal disease, and the AI summary tells you it is a pathogen of utmost importance.

It answers solely based on how you pose the question and does not even provide an accurate summary of the websites it purports to have used as sources.