A: Hi there! Great question. The rest of the 4800 replies will be provided using the 4o-mini model for the time being, which is ever so slightly less powerful. Given the average stats, 200 replies is ~50 chats. So you are all covered with the better model for the first 50 inquiries with Tier 1. So if you expect more, you can consider Tier 2 or 3. Although 4o-mini won't let you down either. We may also consider moving up the models if the API costs decrease in the future.