HyperFlow H3 Flash
Generates synchronized video and stereo audio in few steps
AIFreeOpen source · verified#video-generation#audio-generation#ai-models
Listed by the ProductPerch team from Hacker News · not launched here yet
What is HyperFlow H3 Flash?
HyperFlow H3 Flash is a compressed version of the MiniMax-H3 model designed for generating video and synchronized stereo audio together. It reduces the original transformer size from approximately 31 billion parameters to 13.7 billion or 13.9 billion, making it more efficient while maintaining joint generation capabilities. The model supports text-to-video, image-to-video, and reference-based workflows.
Users can generate clips lasting between 5.2 and 15 seconds at 24 frames per second with a default resolution of 1344 by 768 pixels. The system uses a 32 kHz stereo soundtrack and operates with four, six, or eight sampling steps without classifier-free guidance. Weights are available in INT8 and GGUF formats, with quantization levels ranging from Q3_K_M to Q8_0 to fit different memory constraints.
The model runs on consumer graphics cards with 24 GB or 32 GB of VRAM, as well as data center GPUs like the H100, H200, B200, and B300. It integrates with ComfyUI, Unsloth Studio, and stable-diffusion.cpp. System RAM requirements vary by runtime, starting at 16 GB for GGUF setups and reaching up to 91 GB for INT8 configurations with offloading.
HyperFlow H3 Flash features
- Generates synchronized video and stereo audio in a single pass
- Runs in four, six, or eight sampling steps without CFG
- Supports text-to-video, image-to-video, and reference inputs
- Available in INT8 and GGUF formats with multiple quantization levels
- Compatible with ComfyUI, Unsloth Studio, and stable-diffusion.cpp
- Optimized for consumer RTX and data center NVIDIA GPUs
Who uses HyperFlow H3 Flash and for what
- Create short promotional clips with matching background audio
- Generate animated storyboards from written scripts or images
- Produce social media content with synchronized soundtracks
- Prototype interactive media installations using reference frames
- Test AI video pipelines on local hardware before scaling to servers
HyperFlow H3 Flash FAQ
Is HyperFlow H3 Flash free?
Yes, the repository is licensed under Apache-2.0 and the model weights are available at no cost on Hugging Face.
Does HyperFlow H3 Flash work on Mac?
The documentation lists support for consumer RTX and data center NVIDIA GPUs, along with runtimes like ComfyUI and stable-diffusion.cpp. The website does not specify native macOS compatibility.
What is HyperFlow H3 Flash used for?
It generates short video clips alongside synchronized stereo audio using text prompts, images, or reference frames. It is designed for developers and creators building AI media generation workflows.
Is HyperFlow H3 Flash open source?
Yes, the project is hosted on GitHub under an Apache-2.0 license, and the source code and model weights are publicly available.
Can I run HyperFlow H3 Flash on a PC with 16 GB of VRAM?
The minimum footprint requires a GPU with at least 24 GB of VRAM for standard operation. The website does not confirm functionality on 16 GB graphics cards.
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