Sounds about right, and we just elected GPT-2 president, so 1.5b parameters is an upper bound on what you need to impress most people.
Fake news. The president has so many parameters, you wouldn't even believe it. All the biggest, best parameters. American made parameters, best in the world, genius, genius parameters. You wish you had parameters like these.
we're talking trillions people
And somehow still an improvement over the last one, who had a painfully small context window that would randomly clear.