I don't trust AI for anything other than summarizing/paraphrasing and anything to do with transforming existing text.
The "existing" part is important because if you ask AI for new information they will spit out an answer based on their model, not necessarily on actual present day facts. It might tamper with facts as well from my experience. Depends heavily on which AI you're using but generally just what I wrote above.

No, but it can still be useful to dig up an answer for you that you can then confirm yourself.

I run a Batman-themed RPG for my kids using LEGO figures. Sometimes I 'have to' make the figures I need. I've started printing uniforms for the henchmen (henchpersons?).

I asked ChatGTP for the dimensions of a standard LEGO figure. It confidently gave me incorrect numbers. When I told it those numbers were wrong, it apologized and then gave me new numbers that were also wrong.

Here are some things that ChatGTP did well:

• I told it the Penguin had stolen something, and I asked it which other villain asked him to steal it, what was the object (McGuffin), and what was their plan. It gave me 5 decent ideas, and each idea matched well with the other villain.
• I asked it for the Gotham City Police Department dossier on the Batman. It did that very well.
• I asked it to tone down the dossier to a 3rd-grade reading level, and it did.
• I decided that Egghead has a file on the Batman, actively trying to figure out who is under the cowl. I asked for 50 men's names for a list of suspects. Easy. I then asked for 25 men's names that sound like they are from wealthy families. It did that better than I would have, and instantly.

If we include AI imagery...

• I asked one of the free ones for a LEGO hornet with it's tail arching over its back like a scorpion's tail. (For Riddler's pet "Quizzer Hornets" because they are shaped like question marks and make a sound like... "KWIZZ").
• For D&D, I had one make an image of a katana with rose-themed embellishments. It came out really great.

My conclusion :: don't use AI to retrieve 'facts'... use it for creative pursuits.