MiniMax H3: Open Omni-Modal Video Generation Model
Run MiniMax H3 in ComfyUI: official T2V, I2V, R2V workflows, native 32 kHz stereo audio, FL2VA pruned INT8 checkpoint, Qwen3-VL-32B text encoder, GGUF and FP8 quant options.
MiniMax H3
Video GenerationNative AudioOmni-ModalText-to-VideoImage-to-VideoMiniMax H3 is an open general-purpose omni-modal generation model that jointly understands text, images, video, and audio, and generates up to 15 seconds of video with native 32 kHz stereo audio in a single pass. It is the latest model in MiniMax's Hailuo video line, powered by a 33.1B dense single-stream omni transformer with a Qwen3-VL-32B text encoder.
| Developer | MiniMax |
| Release Date | 2026-08 |
| Architecture | 33.1B dense single-stream omni transformer (13B adaLN branch) |
| Text Encoder | Qwen3-VL-32B (layer 50 hidden states) |
| Video VAE | Temporal causal VAE, f16t4d24 |
| Audio VAE | 32 kHz stereo to 40 Hz latent tokens |
| License | MiniMax H3 Community License |
MiniMax H3 generates up to 15 seconds of video at 24 FPS with native 32 kHz stereo audio, in any of 11 languages. Output defaults to a 768px short edge; the H3-Regenerate-2K module re-generates results at 2K resolution in-context. The model was officially open-sourced on August 3, 2026 under the MiniMax H3 Community License Agreement, with native ComfyUI support merged the same day (Comfy-Org/ComfyUI #15224).
Checkpoints
| Checkpoint | Modes |
|---|---|
| FL2VA | Text-to-video, first-frame, last-frame, first+last-frame |
| Ref2VA | Reference-based: up to 9 images, 3 videos, 3 audio clips (12 files max mixed) |
Resources
Guides and workflows related to this model series.
Run MiniMax H3 in ComfyUI with the official T2V, I2V and R2V templates and native stereo audio. Download the 19.5 GB int8 weights, Qwen3-VL-32B encoder and both VAEs.
Write structured MiniMax H3 prompts with the official skill: five generation modes, the three core fields, camera motion vocabulary, speaker IDs and the six-section format
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