Get the Saient Android app
Saient is published on Google Play as Saient: Offline AI & Video, package uk.co.saient.app. It is free to install.
What the app does on your phone
Local AI chat
A downloaded GGUF language model answers on your phone. Reload or clear chat history in the app. Web lookups use the network when you request them.
Lightning images
Create images locally with SDXL-Lightning four- or eight-step presets. Follow generation progress, cancel a job, and reopen, share or delete saved results.
Offline video maker
Combine music, pictures, clips or animated visuals, adjust timing and effects, and export an MP4 on your phone. See what the editor supports.
Assistant tools
Ask it to look up a contact, open the dialer, or draft a message for you to send yourself — and search the web when you ask for it. You stay in the loop for anything that leaves the device.
Turn your music and visuals into an MP4
Choose an MP3 and a picture, clip or animated visual. Adjust the timing, format and effects, then export at 720p or 1080p. The editor and renderer run locally; no model download is needed.
Keep the Video tab open while exporting. The app shows elapsed time and rendering progress. Longer projects, higher resolutions and effects need more time, memory and free storage.
Local processing, optional network features
Chat and image models run through the bundled Quartz engine. The video maker uses a bundled local editor and renderer. After downloading the models you want, these features work with Wi-Fi and mobile data switched off.
Network access is used for model catalogue checks and downloads, any web lookup you explicitly ask the assistant to do, links you choose to open, and optional safety reports. A safety report contains a category, the feature and model involved, and the app version — never your prompt, your chat or your generated file.
Sharing sends only the file you choose to your selected app. Full details are in the Saient mobile privacy policy.
What your phone needs
| Requirement | Detail |
|---|---|
| Platform | Android. Package uk.co.saient.app, distributed through Google Play. |
| GPU | A compatible Vulkan GPU for Lightning images. Video editing and export have their own memory and processing needs. |
| Memory | Requirements depend on the selected model and project. Check the device guidance in Models before downloading. |
| Storage | Model sizes are shown in the app. Leave extra space for installation and saved images or video exports. The video maker does not need a video model pack. |
| Network | Used for model catalogue checks and downloads, requested web lookups, optional safety reports and links. Local inference and video editing work offline. |
| Account | None. No sign-in, no licence key, no API key. |
| Device guidance | Performance and memory limits vary by phone. Begin with a small image or short video project. |
Quartz — the runtime inside the app
Local chat and Lightning images use Quartz, Saient's Rust inference engine for ARM64 Android. Source and licence information are available at github.com/SaientAI/saient-quartz.
The video maker uses Wavecut with FFmpeg for local editing and rendering. Component notices and licence links are available inside the app.
The rest of the local-first stack
- Saient for desktop — the full local AI workshop for Linux and Windows: chat, a coding agent, SDXL images, Wan video, text-to-speech and LoRA training.
- The Saient agent — files, terminal, planner, memory and checkpoints, running against a local model.
- Saient compared with ComfyUI — where each one fits.
- Quartz — the open-source engine shared by the desktop and mobile apps.
- Agent persistence research — the evidence-first paper behind the agent's memory and continuity work.
Saient Android app — questions
Does the Saient Android app work offline?
Yes. Chat and Lightning image generation run locally after you download a model. Video editing and MP4 export work offline with your selected music, pictures and clips; no video model download is needed.
Does the current app generate AI video with Wan?
No. Experimental Wan generation is unavailable in the current Android release. The Video tab is an editor for existing music and visuals. Previously saved videos remain available.
What can the video maker do?
Combine music with a picture, a video clip or an animated visual, adjust timing and effects, and export a 720p or 1080p MP4. Keep the Video tab open during export. It does not create new AI motion from a prompt or picture.
What does Saient cost?
The Android app is free on Google Play. No account or API key is required.
What phone and storage do I need?
Use a supported ARM64 Android phone. Image generation needs a compatible Vulkan GPU and enough memory for the selected model. The app shows model sizes and device guidance before download; video exports also need free storage. Performance varies by device and project.
When does data leave my phone?
Model catalogue checks and downloads, web lookups you request, optional safety reports and links you open use the network. Sharing hands your chosen file to the app you select. Local inference and video editing do not upload your prompts or media. See the mobile privacy policy for details.
Is there an iPhone version?
The current mobile app is available for Android on Google Play. Saient also has a separate desktop application for Linux and Windows.
Run AI on your own phone.
Local AI and offline video editing. Share a result when you choose.