|
This article applies to Copilot+ PCs only. |
Introduction
The Phi Silica J32 AI component for Qualcomm‑powered systems is a Transformer‑based machine‑learning language model designed to run locally on the device. On Copilot+ Windows PCs, Microsoft’s Phi Silica small language model (SLM) is executed on the system’s Neural Processing Unit (NPU), enabling efficient, on‑device machine‑learning inference. This component leverages specialized NPU acceleration to deliver high‑performance, low‑power AI computation for local language understanding and multimodal machine‑learning workloads.
Summary
This Phi Silica J32 update includes improvements to the Phi Silica AI component for Windows 11, version 26H1.
How to get this update
Windows Update
This update will be downloaded and installed automatically from Windows Update.
Prerequisites
You must have the latest cumulative update for Windows 11, version 26H1 installed.
Replacement information
This update replaces the previously released update KB5083516.
Check update history
To determine whether this update is present on the device, go to Settings > Windows Update > Update history.
After this update is installed, you should find the following update listed in Update history depending on the processor type in the device:
-
2026-04 Phi Silica J32 version 1.2603.373.0 for Qualcomm-powered systems (KB5089873)
References
For a list of AI updates on supported devices, see the following resources:
