> 4,197,168 job applications submitted by 3,372,132 applicants to 1,746 positions.

So roughly 2000 applicants per position which there may be 1-3 of available? And that's across multiple industries.

The rest of the article doesn't say much about how "AI" is used. Just looks like a score is taken from how well they do in the "games" which needs to meet a certain threshold to put the candidate as recommended.