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Local Dream runs Stable Diffusion on Android with Snapdragon NPU acceleration

August 12, 2026 at 11:14 EDT

Media Generation
Open Source

Local Dream, an open-source Android app, runs Stable Diffusion on-device with Qualcomm Snapdragon NPU acceleration, plus CPU and GPU fallback for unsupported chips. The project is free, listed on Google Play, and remains under active development, with documentation moved to a dedicated guide site.

Aug 2026 · Local Dream

Stable Diffusion on Android, Snapdragon NPU-first

Open-source Local Dream runs SD1.5 and SDXL on-device with Qualcomm NPU acceleration, plus CPU/GPU fallback when the chip cannot use the NPU path.

3.2k

GitHub stars

4.8

Play Store rating

10K+

Installs

Releases (latest v2.8.1)

Reported generation time (per image)

Shorter column = faster path. Local Dream NPU vs flagship CPU-only (seconds).

8–15 s

NPU path

Local Dream

15–30 s

CPU path

Flagship phones

NPU path is roughly about 2× faster than flagship CPU-only runs in reported ranges.

How inference is routed

Prompt + model

→

NPU / CPU / GPU

→

On-device image

Hardware gate

NPU support depends on model family and Snapdragon generation.

SD1.5 NPU — Hexagon V68 or newer

SDXL NPU — Snapdragon 8 Gen 3 or newer

Other chips — CPU / GPU only

What users like

Fast NPU generation, private on-device runs, custom models, LoRA, and inpaint/img2img flexibility for power users.

Limits called out

77-token prompt cap, multi-GB checkpoints, occasional blank outputs, and stricter filters on the Play Store build.

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