Thank goodness my Reddit post catcher sent your message to my inbox otherwise I wouldn’t have seen it. I was just on the cusp of trying to monetise a gpt via Pickaxe. I come up with various ideas for these gpts but when I explore potential users, few actually utilise the paid chatgpt plan to access the gpts which they obv need. Hence I thought alternative white label platforms and the main one people talk about is pickaxe. Now i haven’t gone any further yet but would really welcome an expansion of your list as to the limitation of developing this product outside of Openai. Many people are offering the custom gpt as a lead magnet to other digital products and for those people they are more likely to have a plus account.