The issue is that it’s a controlled video from the author. I can still get Wi-Fi and Bluetooth in airplane mode so the airplane mode sign isn’t “proof” enough for me to accept the paper conclusions.
I hope it’s real, but posting a YouTube to assuage the “show me the implementation” isn’t going to help with my cynicism.
Videos are absolutely evidence. You’re looking for someone to replicate their findings, which is fine, but your basis for believing it to be possibly fraudulent is far-fetched.
The paper describes the implementation including a detailed breakdown of the optimisation algorithm itself.
It's also plausible an iPhone 14 Pro could do it given its memory b/w, ops/s and that it can fit the SD model in RAM.
So you just assume these smart people are all lying ? And not just like hiding details but straight up saying it's on-device but faking it ? If so, I don't understand why that is your reaction.
Without source code it could just be calling the OpenAI api.