Advancing Private AI Compute with secure, server-side memory
Piloting the world’s first double-blind AI evaluations Our latest AI breakthroughs and updates from the lab Our mission is to build AI responsibly to benefit humanity A technical update on our Private AI Compute architecture, which will enable persistent, cross-device AI memory with on-device privacy standards. AI is becoming more capable and intuitive — remembering what matters, understanding the world around you, and acting at your direction.
Privacy and trust are core to making that possible, ensuring your data stays private and protected as AI systems evolve to provide more continuous assistance across your devices. Today, we are sharing how we will bring private, server-side memory to our Private AI Compute platform. This breakthrough resolves a longstanding dilemma in modern AI: how to give an assistant long-term continuity across devices while upholding the strict privacy standards typically limited to on-device processing. With this new technical capability, a new persistent memory layer will be able to function like a secure digital vault in the cloud. Under this model, the information needed to assist you is sealed within dedicated, encrypted storage, while the cryptographic keys required to unlock it are held exclusively on your personal devices — ensuring your data is inaccessible to anyone else, even Google. The diagram below shows how this update to Private AI Compute will work. When an AI model needs to access information to assist you, an authenticated, end-to-end encrypted channel connects your device to a protected, isolated environment in the cloud. That space, or “secure enclave,” temporarily decrypts your data in isolated memory to handle the request, saves any new context, and immediately encrypts it, keeping your information private as if it never left your device. By combining hardware-enforced secure enclaves, double-encrypted channels, and per-user databases shielded by device-derived encryption keys, this architecture ensures your data stay fully private and under your control. This evolution is necessary to meet the computing needs of the AI era. Local, on-device processing has historically been the gold standard for privacy — but frontier AI models often require far more computing power than any one device can provide. Bringing advanced AI to personal assistants means solving how to tap into the power of the cloud while ensuring personal data can remain as protected as if it never left your device. To that end, we previously introduced our Private AI Compute platform, allowing users to process complex tasks in hardware-isolated cloud enclaves. Until now, that technology — along with similar solutions across the industry — was strictly “stateless,” meaning it wiped all context the moment a task ended. Workarounds, like having AI save a list of personal facts and preferences, aren’t enough to support the rich, continuous experiences people expect from personal AI.
