[dawg-]

I think Google is trying to do this with the new update to Assistant - the language model is only 500mb so it can all be processed on the local device. I saw in a blog post somewhere they are trying to get to where individual devices hold data and compile these aggregated profiles on the device, the send the profiles to google for their ad services and other big data stuff

[prepend]

I use Google Translate and that works well with offline datasets to do CV and translation without any network or cloud usage.

I don’t think the photo app or assistant app allows this functionality although they likely could.