Bing's answer, which is a prominent callout box listing East Asians at 106, Ashkenazim at 107-115, Europeans at 100, African Americans at 85 and sub-Saharan Africans at "approaching 70" is wildly, luridly wrong. The source (or the sole source it gives me) is "human-intelligence.org", which in turn cites Richard Lynn, author of "IQ and the Wealth of Nations"; Lynn's data is essentially fraudulent.

Anybody claiming to have a simple answer to the question you posed has to grapple with two big problems:

1. There has never been a global study of IQ across countries or even regions. Wealthier countries have done longitudinal IQ studies for survey purposes, but in most of the world IQ is a clinical diagnostic method and nothing more. Lynn's data portrays IQ data collected in a clinical setting as comparable to survey data from wealthy countries, which is obviously not valid (he has other problems as well, such as interpolating IQ results from neighboring places when no data is available). (It's especially funny that Bing thinks we have this data down to single-digit precision).

2. There is no simple definition of "the major races"; for instance, what does it mean for someone to be "African American"? There is likely more difference within that category than there is between "African Americans" and European Americans.

Bing is clearly, like a naive LLM, telling you what it thinks you want to hear --- not that it knows you want rehashed racial pseudoscience, but just that you want a confident, authoritative answer. But it's not giving you real data; the authoritative answer does not exist. It would do the same thing if you asked it a tricky question about medication, or tax policy, safety data. That's not a good thing!