An interesting take on the AI model. I'm not sure what their business model is like, as collecting training data is the one thing that free AI users "pay" in return for services, but at least this chat model seems honest.

Using remote attestation in the browser to attest the server rather than the client is refreshing.

Using passkeys to encrypt data does limit browser/hardware combinations, though. My Firefox+Bitwarden setup doesn't work with this, unfortunately. Firefox on Android also seems to be broken, but Chrome on Android works well at least.