Comment by jamix

The classic "Text completion" API (as opposed to the new "Chat completion" one) seems to offer more flexibility: You have complete freedom in providing interaction examples in the prompt (as in https://github.com/artmatsak/grace/blob/master/grace_chatbot...) and are not limited to the three predefined chat roles. But the requests being 10x cheaper means that we'll have to find ways around those limitations :)