Jane Street pays interns a little more than $60/hr. Pretty competitive. Definitely in line with unicorns and big tech ($50/hr @ FB and AirBnb, $45 @ Apple, etc)
From what I've heard Apple starts at $38 an hour.
FB isn't hourly, it's $8k a month.
Amazon is $7.725k a month or $7.2k if you take corporate housing. It's more in California and NYC - $8.4k a month, or $7.9k if you take corporate housing.
Also, UW Dorms are only for summer interns. Off cycle interns live in 1 bedroom apartments in SLU. They're really nice with a $500 salary reduction.