Description
Spatius provides next-generation AI avatar infrastructure built around edge rendering. Instead of streaming heavy pre-rendered video from the cloud, its Motion Server converts speech audio into lightweight lip-sync motion data (roughly 10 to 15 KB per second), which client SDKs render locally as an interactive 3D avatar. This motion-first approach runs 1080p at 25fps on entry-level chipsets without a dedicated GPU and stays stable during network jitter, dramatically lowering the cost per minute compared with cloud video streaming.
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The platform consists of Spatius Studio for managing apps and avatars, the cloud Motion Server, and the AvatarKit SDK family for Web, iOS, Android, and Flutter. It accepts audio via standard protocols such as LiveKit WebRTC and WebSockets, and an official LiveKit Agents plugin lets developers add a synchronized, client-rendered 3D avatar to an existing voice stack while LiveKit continues to handle speech recognition, the language model, and text-to-speech. A playground offers a library of ready digital humans, and users can upload a portrait to have a custom avatar generated, with support for custom-trained 3DGS models and 100+ languages.
Spatius uses credit-based pricing measured in minutes, with a free plan that includes 1,000 monthly credits (about 100 minutes), plus Starter, Builder, Growth, Scale, and Enterprise tiers that add more credits, concurrent sessions, longer sessions, and custom avatar creations. Enterprise adds an avatar creation API, SLA guarantees, SOC 2 and GDPR compliance, isolated deployment, and dedicated support.
- CategoryAI Avatar Generators
- Pricing ModelFreemium
- DeploymentCloud, Self-hosted
- PlatformsWeb, iOS, Android
Spatius's Core Features
On-device edge rendering of 3D avatars
Low-bandwidth audio-to-motion stream (~10-15 KB/s)
Direct audio-to-avatar engine with real-time lip sync
Web, iOS, Android, and Flutter AvatarKit SDKs
Official LiveKit Agents plugin
Runs 1080p 25fps on entry-level chipsets without a GPU
Custom avatar creation from a portrait and 3DGS models
100+ language support
How to use Spatius?
Create an account: Start on the free plan with monthly credits.
Pick or build an avatar: Choose a public avatar or upload a portrait to generate a custom one.
Add the SDK: Integrate the AvatarKit SDK for Web, iOS, Android, or Flutter, or the LiveKit plugin.
Stream audio: Send speech audio via LiveKit WebRTC or WebSockets to the Motion Server.
Render locally: Let AvatarKit render the synchronized 3D avatar on the user's device.
Spatius's Use Cases
- Voice agent avatars
- Language learning
- Mobile and low-power apps
- Custom digital humans
- Cross-platform products
