I’m not sure if this is final by now - there is this new dashboard web page which e.g. shows a normal, small (foreground) request being priced way below the 0.30$ when you hover the last cell of a row.
However if your token counts are high it can also easily exceed that, I had requests that are around 0.85$
So I think with the max mode you still want to control the token counts or use it just when needed (not as default mode)