> Nowhere in the news they say it is offline

Reading HN, I 100% understood “private” to be marketing copy for “local inference”.

How else could the information be kept private?

I begrudgingly suppose that there is precedent for the usage, like Apple’s Private Relay, but I really don’t think they are comparable.

> conversations aren’t saved on Mozilla’s servers by default, and partners like Mistral agree to zero data retention.

I don't read this as offline ...