Corps gonna corp, but I’ve tested this with all the systems and network analysis tools at my disposal, and the on-device and e2e guarantees appear to hold, for now.

But people are right to be suspicious, because it’s rare. The engineering challenges of mobile inference compared to data center hardware, the expense of developing models without free data from users, and the lack of future data brokerage side-hustle options are why it’s rare. So anyone who can should audit these claims periodically, particularly with respect to data collection.