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Product notes, technical guides, independent comparisons, and research for teams building real-time AI avatars.

More in Engineering · Page 3

40 articles

AI Chatbot API vs. AI Video Agent API: Architecture Differences

Compare chatbot APIs and AI video agent APIs by media, latency, data boundaries, tool use, and deployment model for SaaS teams.

Engineering7 min

How to Add a Real-Time AI Avatar to a React SaaS App

A practical guide to placing a real-time AI avatar in a React SaaS product without confusing the avatar layer with your agent, data, or application workflow.

Engineering11 min

How to Secure Session Tokens for an AI Avatar Integration

A practical Direct Mode guide to keeping the Spatius API Key on your backend, issuing fresh Session Tokens deliberately, and designing a clean reconnect path.

Engineering10 min

How to Stream TTS Audio to a Real-Time AI Avatar

A practical guide to sending TTS output to a real-time avatar without confusing avatar speech, playback timing, and application-owned conversation logic.

Engineering11 min

What Data Should a Real-Time AI Avatar Provider Receive?

Decide what belongs in your SaaS application, what the avatar layer actually needs, and how to review the boundary before launch.

Engineering12 min

How to Add an AI Avatar to an Existing SaaS AI Agent

A practical guide to adding a real-time avatar layer to an existing SaaS AI agent while keeping your application in control of its intelligence, data, and workflows.

Engineering8 min

Build vs. Buy a Real-Time Avatar Layer for Your SaaS Product

A practical framework for deciding whether to build or integrate the avatar motion and rendering layer in a SaaS product—without giving up ownership of your agent, data, or workflows.

Engineering9 min

How to Add an Avatar to an AI Agent: Developer Guide (2026)

A practical developer guide to adding a real-time avatar to an existing AI agent without replacing its LLM, tools, speech stack, memory, or business logic.

Engineering9 min

Live Avatar SDK: How to Add a Real-Time Live Avatar to Your App Without Cloud Video Streaming (2026)

A developer's guide to live avatars in 2026 — what a live avatar SDK actually does, how on-device rendering keeps bandwidth at 10–15 KB/s, and how to add a real-time live avatar face to your app on Web, iOS, and Android.

Engineering10 min

Build a Custom AI Avatar from a Single Photo: How 3DGS and Facial Matching Work in 2026

A developer-friendly explanation of single-photo custom avatar generation, 3D Gaussian Splatting, facial matching, Motion data driving, and on-device rendering.

Engineering10 min

Integrating AI Avatars with LiveKit: A Developer Guide to the Spatius LiveKit Plugin

How to add a real-time Spatius avatar face to a LiveKit Agents voice pipeline, including setup, architecture, latency notes, and common production issues.

Engineering10 min

AI Avatar on Entry-Level Chipsets: How On-Device Rendering Works on Budget Hardware

Most AI avatar SDKs stream heavy video from the cloud. Spatius streams only lightweight Motion data — as little as 10–15 KB/s — and renders the avatar locally. That's why it runs stably on entry-level chipsets with no dedicated GPU.

Engineering8 min