MiniMax が MiniMax-H3 を提供開始
MiniMax から MiniMax-H3 がリリースされました。
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MiniMax H3
System Overview
MiniMax H3 is a general-purpose, omni-modal generative system. It supports unified understanding of multimodal contexts composed of text, images, video, and audio, and can generate video with native stereo audio at resolutions up to 2K and durations of up to 15 seconds. Thanks to its task-generalization-oriented system design, H3 already possesses broad multimodal context understanding and generation capabilities at the pre-training stage, enabling outstanding performance in following complex multimodal instructions.
H3 supports the following input and output specifications:
| Category | Specification |
|—|—|
| Output duration | 4–15 seconds |
| Output aspect ratio | Supports a wide range of aspect ratios, including but not limited to 21:9, 16:9, 4:3, 1:1, 3:4, and 9:16 |
| Output resolution | Supports various resolution dimensions. The shorter side is set to 768 pixels by default. 2K \| generation can be achieved with H3-Regenerate-2K |
| Output frame rate | 24 FPS |
| Output audio | 32 kHz stereo |
| Supported dialogue languages | Stable support for 11 languages: Arabic, Chinese, English, French, German, Italian, Japanese, Korean, Portuguese, Russian, and Spanish. Additional languages are also supported to varying degrees |
Model Variants and Input Specifications
| Model Variant | Input Mode | Specifications |
|—|—|—|
| H3-Base-FL2VA | First-and-last-frame mode | Supports zero, one, or two input images. – No image input: Text-to-video mode – One image input: First-frame-to-video or last-frame-to-video generation – Two image inputs: First-and-last-frame-to-video generation |
| H3-Base-Ref2VA | Omni-reference mode | Supports multi-modal reference inputs: – Images: ≤ 9 images – Videos: ≤ 3 clips; each clip must be 2–15 seconds long; total duration ≤ 15 seconds – Audio: ≤ 3 clips; audio must be accompanied by image or video input and cannot be used as the sole input; each clip must be 2–15 seconds long; total duration ≤ 15 seconds – Mixed inputs: Maximum number of files across all input types is 12 |
The complete H3 system consists of the following three modules:
– H3-Context-IR: As inputs become increasingly complex, we build a dedicated system to deeply understand and refine the input multimodal instructions, then convert them into a form that H3 can readily understand—the Context Intermediate Representation—for generation. H3-Context-IR is critical to the quality of the final output, so we strongly recommend incorporating it into your generation pipeline or following the “Prompting Guidance” to build your own context-processing system.
– H3-Base: Generates audio and video based on the H3-Context-IR output, producing results at 768p resolution.
– H3-Regenerate-2K: Feeds the 768p result together with the original context back into H3 to regenerate the output at 2K resolution. This process leverages both H3’s powerful generative capabilities and the rich information contained in the original context, enabling it
SOURCE: MiniMax (2026-07-28)
