Those are the quant thresholds where people with mid-high end hardware can run this locally at reasonable speed, though.
In my experience Q2 is flakey, but Q4 isn't dramatically worse.
Then why did you write this?
> It's always possible that there are some bugs in early implementations that need to be fixed later, but so far I don't see any reason to believe this is actually a Sonnet 4.5 level model.