I have a similar situation too, last month was the worst number of sales month since almost one year, but after 2 weeks it looks like this month is going to be the worst since many years ! however i have almost the same number of sales in other places, so i don't think it has much to do with AI generated models or the economic situation... also i don't think algorithms change is the only reason, in general when they change algorithms some of my models have better sales than other but never all of them are impacted like that, i think maybe cgtrader is no more promoting models like before, and i have also noticed that cgtrader is no more present in Google search results like before, i think this is can have an impact too, i hope they will do something especially with the new models, since more than one year i have continued to upload a big number of models but apart from a few exceptions no sales at all for these new ones