However, it's not infallible. As a test, I asked it "tell me about Egyptian magical knives" and got this:

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Egyptian magical knives, also known as "wands," were believed to have been used in ancient Egyptian rituals and ceremonies. They were often made of metal or precious stones and were used to direct energy or as a tool for divination. The knives were also believed to have protective powers and were sometimes buried with the dead to protect them in the afterlife. The design of these knives varied, with some having hieroglyphics and other symbols etched into them. They were also often decorated with various precious stones, such as lapis lazuli and turquoise.
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About one third of that is true.

-- Byrd
Moderator, Hall of Ma'at