What is main difference between gpt-realtime and gpt -realtime-mini

I’m very confused that what is main difference between gpt-realtime and gpt -realtime-mini and also in pricing page thier is pricing in token but how many token it will cost per minute can you please provide me rough estimate

gpt-realtime is the more powerful and faster model, so it costs more tokens. gpt-realtime-mini is a lighter version that is cheaper and a bit less capable. The main difference is performance vs cost.

can you guide me that how much token both models will consum per minutes so that I can estimate cost