My Codex plan lapsed a few days ago, so I've experimented with DS4.1F instead (and my annual GLM sub that is so slow I don't really bother with it any more). DS4.1F is slower + stupider than Sol. Stupider I can deal with, but slower is difficult to stomach.
FYI, OpenAI locks the currency based on your region (presumably IP-address based), with no way to change via the dashboard or manually via support. Funnily enough, for a company that some people claim reached AGI, this is *not* what their own website says.