Maciej Piecko

You missed the most important disadvantage of proprietary closed embedding models served in SaaS form - vendor lock-in. You stop paying for the service and you end up with almost useless vector database - you can't produce new vectors for query in RAG (so your RAG stops working), you can't switch the model and leave all the vectors to work with another free model - their latent spaces are incompatible. Only thing you can do with it is to compare already owned vectors with each other, pitty. Proprietary embedding models usage should be considered only with great care.