Helios: A 14B Parameter Real-Time Video Generation Model for Minute-Scale Content

Helios, the first 14B video generation model that runs at 19.5 FPS on a single NVIDIA H100 GPU and supports minute-scale generation while matching the quality of a strong baseline.

We make breakthroughs along three key dimensions: (1) robustness to long-video drifting without commonly used anti-drifting heuristics; (2) real-time generation without standard acceleration techniques; and (3) training without parallelism or sharding frameworks.

Helios is a 14B autoregressive diffusion model with a unified input representation that natively supports T2V, I2V, and V2V tasks.

For efficiency, we heavily compress the historical and noisy context and reduce the number of sampling steps, yielding computational costs comparable to -- or lower than -- those of 1.3B video generative models.

Extensive experiments demonstrate that Helios consistently outperforms prior methods on both short- and long-video generation.