You found a generic-looking white mushroom, congrats! But should you put it on your pizza or will it kill you stone dead? This photo is a good way to illustrate why you should talk to a human being instead of a computer when making life or death decisions.
A knowledgeable person would notice that the photo cuts off the bottom of the stem - this is important. If it has a club-like swelling (called the volva), you don't have a button mushroom.
A knowledgeable person would ask you to take a spore print or even just look at the gills. Deadly Amanitas have white spores, button mushrooms have brown ones.
These are two simple ways to protect yourself against mushroom poisoning that aren't necessarily foolproof - people poison themselves with Amanita phalloides a lot because they look like Volvariellas, which are closely related and have a lot of the same features, but if you adhere to the rule of not eating any white-spored mushrooms with swelling at the base you can go a long way to protect yourself. But the AI won't tell you that, because it's not built for context, it's built by people who are good at sounding like they know everything and is made in the image of its creators.
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