H3-World turns MiniMax H3 into a controllable world simulator with 8k gameplay samples

sachasayan · reddit · 2026-09-02

H3-World repurposes MiniMax H3's pretrained text pathway into language-native world control: character and camera actions are composed as textual instructions and injected per video latent interval for temporally grounded control.

Remarkably efficient — just 8,000 gameplay samples, 10,000 LoRA steps, and 0.199% trainable parameters yield controllable character/camera motion that generalizes to unseen action compositions and visual scenarios. Paper (arXiv 2609.01560), code, model and project page are all public.

Related event: MiniMax Unveils H3-World: Turning Video Models into Controllable World Simulators with 8K Samples(5 posts)→

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