Those don’t seem right, too low. The highest priced bronze plan is over $200 a mnth less than what shows for us on CoveredCa.
The actual rates an individual pays vary by where he is.
The Weekly Standard link I posted explains the average calculation, and the healthsherpa link gives a very easy calculator (including subsidies) for actual rates by specific zip code.
I'm not aware of any mistakes in the numbers, which is not to say there aren't any. If you get a different rate from the healthsherpa calculation than what you've actually been quoted in real life, then of course there's a problem somewhere.