Earlier quoted context omitted.
> "On May 18, 2026, Ukraine carried out a drone attack on Moscow, Russia" I actually don't know which way you came down on that one? I think strictly it's false but "mostly true" would be justifiable? (as in, to say it's false would be misleading if it lead the reader to assume there was no attack around that time). https://www.washingtonpost.com/world/2026/05/17/ukrainian-dr... It seems it happened Saturday 16th ove…
It's impossible to answer if you don't have a search tool, and three out of the five tested models didn't have a search tool.
No sytem can know everything. It doesn't matter how many tools you give it. It's always wrong to force binary True / False without shades of "I don't know"