Rebirth Video Released HyperFlow H3 Flash: Model 14B Open with 54% Compression and 6-Step Creation.
HyperFlow H3 Flash is the third and most technologically advanced release in the HyperFlow line of open generative systems. The architecture is a deeply optimized version of the 32 billion MiniMax-H3 flagship transformer: the developers cut the network size to 14 billion parameters (54% reduction), reduced the sampling process to only 6 steps and achieved 768p video generation with real-time stereo sound on a cluster of four NVIDIA B200 accelerators.
Unlike classic discrete pipelines, where the video is generated without audio and the audio is selected by a secondary neural network, HyperFlow H3 Flash synthesizes visual images and a synchronized stereo track (32 kHz) simultaneously in one process. Thanks to data-free flow refinement, the number of denoising steps is reduced from 50 to 4-8 steps (default profile - 6 steps) without unconditional classifier (CFG = 1.0), while maintaining the cinematic smoothness and detail of the base model BF16.
The model is ready for launch on consumer graphics cards: due to the compact 13.8B core and the quantization in INT8 ConvRot and GGUF formats (the weight of the quantum Q4_K_M file is about 9 GB), the generator can be conveniently deployed in ComfyUI on RTX 3,090, RTX090 and RTX4 cards at the level of RTX090 and RTX4. All key modes are supported: text generation, image to video, first and last frame interpolation (FL2VA) and reference to video.