Sapphire temporary outage
A service outage is causing the Default Sapphire-tier model to take 10x longer than usual. There's no ETA on the fix, but I'm guessing it will be fixed within a day. As a temporary workaround, you can select "Creative" or "Fastest" as the model override.
Edit: Issue is now mostly or completely resolved.
Edit: Issue is now mostly or completely resolved.