A Caltech spinout says it fits a 54 GB model into 3.9 GB on a phone, and Apple started testing it the week its Siri beta went public. The timing is the story.

Apple is reportedly negotiating with PrismML to compress massive AI models for on-device iPhone use, with implications for privacy, computing, and crypto

Apple is exploring PrismML's AI model compression tech that shrunk a 54 GB model to under 4 GB for iPhone, with implications for on-device AI and crypto.