You could have tested this easily. It doesn't look like you can get JSON directly out of it, nor any other type of data that meets the criteria of the query.

https://www.wolframalpha.com/input?i=Give+me+a+JSON+document...

It's a paid feature but you can, in more formats than JSON too. If you click the little Data icon it expands and gives you a bunch of options.

Where ChatGPT then wins is the ability to progressively tweak the output until it is exactly what you want.