GDI (gross domestic income) = GDP (gross domestic product) by identity. The funds spent to buy the output are the income of the sellers of the same output.

But the government gets the data for each independently, which includes estimates of various categories, so the reported numbers don’t equate when initially released, but do tend to come together over time as more data is collected. And right now it looks to me like GDI has been running quite a bit weaker than GDP:

Decelerating income growth leads recessions:

Averaging GDP and GDI looks like this: