https://vaultaiapp.net/blog/ Notes on running AI on your own phone: what on-device models can really do, what the cloud costs you in money and privacy, and where the line falls. en-us Mon, 31 Aug 2026 12:00:00 GMT https://vaultaiapp.net/blog/agent-era-privacy.html https://vaultaiapp.net/blog/agent-era-privacy.html Mon, 31 Aug 2026 12:00:00 GMT Chat boxes ask what happens to the text you paste. Agents ask for standing access to your mail, files and calendar — and the permission model was never designed for software that can be talked into things. https://vaultaiapp.net/blog/why-small-models-forget-facts.html https://vaultaiapp.net/blog/why-small-models-forget-facts.html Wed, 26 Aug 2026 12:00:00 GMT Model weights are lossy compression of the training data. Facts compress badly and language compresses well — which explains almost everything about what a phone-sized model is good at. https://vaultaiapp.net/blog/ai-subscription-math.html https://vaultaiapp.net/blog/ai-subscription-math.html Sun, 17 Aug 2026 12:00:00 GMT Stack up the monthly charges people are now carrying and run it out three years. The number is not small. https://vaultaiapp.net/blog/what-on-device-ai-can-do.html https://vaultaiapp.net/blog/what-on-device-ai-can-do.html Tue, 04 Aug 2026 12:00:00 GMT An honest capability map: where a phone-sized model matches the cloud, where it doesn't, and why the gap matters less than you'd think. https://vaultaiapp.net/blog/what-leaves-your-phone.html https://vaultaiapp.net/blog/what-leaves-your-phone.html Tue, 21 Jul 2026 12:00:00 GMT Where the text goes, who can see it, how long it stays, and the questions people quietly stop asking because of it.