I'm becoming more and more suspicious of the Google Flight results.

It used to be they consistently returned the actual lowest fares available. I very rarely could find a fare cheaper directly on the airlines own website, and began to trust that google would find the cheapest fares at least for standard return trips.

I'm watching business class fares from the east coast to Asia, and I find that very often the google results may be "OK" but searching the carrier sites directly is resulting in many MANY lower fares that google flights is simply missing.
No tricks or codes or anything like that, and it's not a buck or two either, we're talking $500+ or ~10-15% difference. It's almost as if google isn't really searching "live" anymore.

Such a shame it's turned to garbage since the last forced update.