Meta Releases Horizon Core 1.3 With Social Presence SDK and Cross-Device Avatars

Gaming · 5 min read

Meta Releases Horizon Core 1.3 With Social Presence SDK and Cross-Device Avatars

Horizon Core 1.3 focuses on presence and synchronization: the Social Presence SDK exposes proximity heuristics, shared gaze signals, and lightweight lip-sync cues so developers can build nuanced social interactions without excessive bandwidth.

The cross-device avatar system introduces versioning and layered assets, allowing a user's avatar to share base geometry while swapping device-specific assets (e.g., low-poly for mobile, high-poly for headsets). Meta also opened a validation pipeline for avatar behaviors to ensure comfort in mixed-presence experiences.

Meta positioned these changes to accelerate third-party social apps on its platform while pushing for interoperability across the company's headset and mobile app ecosystem. The SDK includes privacy defaults and tooling to prevent unauthorized cross-app avatar tracking.