Google has sucked for many years.

I understand when people say LLMs are better than Google, but that bar can't drop lower.

Yeah i thought the same thing.

I asked it for a complete list of all fissile materials and it said it's basically only three: Thorium-232, Uranium-235, Plutonium-239 or sth like that. I asked repeatedly whether there were no others, and it assured me it's only these three.

Well, three months later i actually bothered to check and read up on Wikipedia. Turns out there's a looong list of fissile isotopes, like at least 20 of them ...