HY-World 2.0 just dropped

Reddit r/LocalLLaMA / 4/16/2026

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Key Points

Tencent released HY-World 2.0, positioned as the first open-source state-of-the-art 3D world model.
The system generates persistent, editable 3D world assets (3D Gaussian splats, meshes, and point clouds) rather than producing only videos.
HY-World 2.0 supports multimodal input (text, images, multi-view, and video) to create 3D worlds with an emphasis on temporal consistency (no flickering, no time limit).
The core model, WorldMirror 2.0, unifies predictions for depth, normals, camera parameters, point clouds, and 3DGS in a single feed-forward pass.
Users can import outputs into major tools and engines (Unity, Unreal Engine, Blender, Isaac Sim) and run real-time rendering with native physics and collision on consumer GPUs.

Tencent just released HY-World 2.0 — the first open-source state-of-the-art 3D world model.

What makes it special (repo’s own words):

Generates real 3D assets (3D Gaussian Splats, meshes, point clouds) — not videos

Persistent & editable worlds you can “build once, keep forever”

Fully importable into Unity, Unreal Engine, Blender, Isaac Sim

Native physics, collision, first-person navigation, real-time rendering on consumer GPUs

Unlike video-only models (Genie 3, HY-World 1.5), no flickering, no time limit, true 3D consistency

Core: WorldMirror 2.0 — unified feed-forward model that predicts depth, normals, camera params, point clouds + 3DGS in one pass.

Multimodal: text, image, multi-view, or video → 3D world.