According to Jeff Dean (@JeffDean), VaultGemma is an open large language model released by Google Research that has been trained from scratch with differential privacy, a key innovation for protecting sensitive data during AI model development (source: research.google/blog/vaultgemma-the-worlds-most-capable-differentially-private-llm/). The accompanying technical report (source: arxiv.org/abs/2501.18914) presents a new scaling law for differentially private language models, providing concrete guidelines for balancing model accuracy with privacy preservation at scale. This breakthrough enables businesses and developers to leverage large language models in regulated industries such as healthcare and finance while meeting stringent data privacy requirements. The research demonstrates that it is possible to maintain high utility in AI systems without compromising user privacy, marking a significant advancement in privacy-preserving AI technology (source: x.com/GoogleResearch/status/1966533086914421000).