Embedding Model with Existing Index

[eyloncaplan]

Hello! I'm wondering if there's any way to index a set of documents with one model, say model X, then to search the index using a different model, say model Y. In my case model Y would be a fine-tuned version of X, but in general I'd like to know. Otherwise I think I would have to reindex the whole set of documents using Y, which seems unnecessary in my case. Thank you!