[andrenatalbr]

You are right in your statement: the models are downloaded only once and cached. If that's not the case for some users, it should be filed as an issue

[GekkePrutser]

But what about updates? I assume they need to be updated once in a while?

[andrenatalbr]

We retrain models as we get new datasets and only if they improve, which is not common. So far we haven't updated any model. When it's time, then yes, they will be updated, but it's definitely not a frequent process.