There are no open source models, at least not useful ones. Open weight is not the same as open source. Open weight models are still just inscrutable binary blobs that you can (theoretically) run on your own computer instead of through a SAAS web app. The open weight model labs don't even provide a high level catalog or any description whatsoever about what went into the training data.

This is not open source and we really should stop conflating the two things.