Allow extraction of revision id from model

[KennethEnevoldsen]

Hi over at MTEB, we would love to make our results more reproducible. One way to do that is to know which model was used to produce a given result (revision id and all).

Would it be possible to make this information accessible from the SentenceTransformers object?

[tomaarsen]

Hello!

My understanding is that this should be possible without introducing any additional overhead, as the hf_hub_download helper method caches files based on the repository revision. The repository ID could also be saved when it is successfully used to load a model.
I think it could make sense to incorporate this with #2449, which introduces model_card_data to store some information about the model (which is intended to be used in the model card generation). This already stores base_model, but I can convert that into base_model_id and base_model_revision. Do note that these would be None when loading a local model.

How does that sound?

• Tom Aarsen

[KennethEnevoldsen]

Sounds great, exactly something like that I am looking for!