snapdragon-ai-studio

Overview

HK NPU STUDIO is an independent source-available proprietary desktop application for local generative AI on Windows 11 ARM64 PCs. It is built specifically around Snapdragon X hardware and aims to make local AI image generation approachable without forcing users to understand model package layouts, QNN components, ONNX files, or installation internals. The Phoenix Engine coordinates model discovery, validation, installation, activation and inference while keeping supported generation workflows local on the PC. The application supports Windows 11 ARM64 and targets Snapdragon X Plus / X Elite systems, with integrated Qualcomm QNN / Hexagon NPU and ONNX Runtime. Supported model workflows include Stable Diffusion 1.5, Stable Diffusion 2.1, and Stable Diffusion 3.5 Medium, while SDXL and additional models are experimental. It includes a Model Manager for guided installation, validation and activation. Phoenix Boost improves or expands prompts before image generation. Deterministic mode works locally without an additional language model. Phoenix Image Lab includes AI Photo Restoration, which restores historical, damaged, and black-and-white photos, preserves available detail, removes conservative dust and speck defects with Dust Cleanup V4, and produces a 4× upscaled result. All FiDeSR neural restoration stages use Qualcomm QNN/HTP on the Snapdragon Hexagon NPU, and the required Photo Restore models are included in the RC3 installer.