Apple Foundation Models 2025
Apple

The 2025 Apple Foundation Models generation adds image understanding, improved reasoning and tool use, and support for 15 languages. It pairs an approximately 3B on-device model using KV-cache sharing and 2-bit quantization-aware training with a server model using Parallel-Track Mixture of Experts and interleaved local/global attention. The Foundation Models framework exposes the on-device language model through Swift, with guided generation, tools, and task adapters; that interface should not be assumed to expose every multimodal capability described in the research report. The models remain proprietary, optimized for Apple silicon and Private Cloud Compute, with no public weight downloads.
Typemultimodal
ParametersApproximately 3B on-device; server size undisclosed