Comment by g947o

My experience is that Perplexity is slightly better at providing facts than ChatGPT (in default mode), probably because (almost) everything comes from a source, not just the model's training set. Although Perplexity does mess up numbers as well.

My most recent experiment:

How many Google CEOs there have been?

Followed by the question

So 3 CEOs for 27 years. How does that number compare to other companies of this size

ChatGPT just completely hallucinates the answer -- 5 Microsoft CEOs over 50 years, 3 Amazon CEOs over 30 years, 2 Meta CEOs over 20 years which are just obviously wrong. You don't need to do a search to know these numbers -- they are definitely in the training dataset (barring the small possibility that there has been a CEO change in the past year in any of these companies, which apparently did not happen)

But Perplexity completely nailed it on first attempt without any additional instructions.