Models / MiniMax AI
Video

MiniMax H3

Omni-modal video generation with native stereo audio and 2K output

About model

MiniMax H3 is a general-purpose omni-modal generation model, the third generation of MiniMax's video line following Hailuo 01 and 02. It understands unified context spanning text, images, video, and audio, and generates 4 to 15 second clips with native stereo sound at up to 2K resolution. Where earlier generative systems split work across separate expert models for text-to-video, image-to-video, first-and-last-frame, reference, and editing, H3 unifies these as one model, with reference and editing relationships expressed in natural language: describe how the inputs relate to the target video, and H3 handles the cross-modal understanding itself. MiniMax reports early testing shows the model ready for commercial content creation, with strong instruction following, accurate text and brand rendering, and video-to-video motion transfer. Weights are open under the MiniMax H3 Community License. Available on Together AI.

Max Resolution

2K

In-context regeneration recovers small text and fine detail that super-resolution can only guess at

Native Audio

Stereo

Voice, sound effects, and music jointly generated at 32kHz, with stable dialogue in 11 languages

Max Reference Files

12

Up to 9 images, 3 video clips, and 3 audio clips combined in a single request

Model key capabilities
  • Omni-Modal Reference & Editing: Blends up to 9 images, 3 videos, and 3 audio clips as inputs, with relationships described in natural language rather than fixed task types
  • Native Stereo Audio: Voice, sound effects, and music jointly modeled and generated with the video, with stable dialogue support across 11 languages
  • 2K In-Context Regeneration: Regenerates its own 768p output at 2K using the original context, recovering small text and fine detail
  • Available on Together AI: Serverless access to the full generation pipeline through the Together AI API
  • API usage

    • cURL
    • Python
    • Typescript

    Endpoint:

    MiniMaxAI/MiniMax-H3

    curl --request POST \
      --url https://api.together.xyz/v2/videos \
      --header "Authorization: Bearer $TOGETHER_API_KEY" \
      --header "Content-Type: application/json" \
      --data '{
        "model": "MiniMaxAI/MiniMax-H3",
        "prompt": "some penguins building a snowman"
      }'
    
    from together import Together
    
    client = Together()
    
    # Create a video generation job
    job = client.videos.create(
        prompt="A serene sunset over the ocean with gentle waves",
        model="MiniMaxAI/MiniMax-H3"
    )
    
    import Together from "together-ai";
    
    const together = new Together();
    
    async function main() {
      // Create a video generation job
      const job = await together.videos.create({
        prompt: "A serene sunset over the ocean with gentle waves",
        model: "MiniMaxAI/MiniMax-H3"
      });
    
  • Model card

    Architecture Overview:
    • H3-Omni Transformer: a 33B parameter dense, single-stream Transformer with no modality-specific attention or FFN structures; roughly 13B parameters sit in AdaLN branches whose outputs can be precomputed for inference
    • Multimodal encoding built on a vision-language encoder derived from Qwen3-VL-32B, alongside H3-VisualVAE (16x spatial, 4x temporal compression, 24 latent channels) and a stereo H3-AudioVAE compressing 32kHz audio to 40Hz latents
    • Three-dimensional Multimodal RoPE captures temporal and spatial relationships across the packed multimodal sequence
    • A hosted context-understanding stage interprets free-form multimodal instructions, parsing cross-modal and temporal relationships before generation
    • 2K output produced by in-context regeneration: the base model regenerates its own 768p result while re-reading the original context, rather than using a separate super-resolution module

    Training Methodology:
    • Unified pre-training across text-to-image, text-to-video, text-to-audio, and generalized reference and editing tasks, built from natural data with language as the generalization bridge
    • A purpose-built full-modality captioning pipeline distills roughly 100K tokens of inference per source item into ~4K-token contextual descriptions covering relationships among context elements
    • Training separates understanding and generation workloads to balance heterogeneous compute, with a MiniMax-reported throughput gain of nearly 30%

    Performance Characteristics:
    • MiniMax reports early testing shows commercial readiness across advertising, branding, e-commerce, product design, UI/UX, and gaming content
    • Strengths highlighted by MiniMax include instruction following, accurate text and brand rendering, and video-to-video motion transfer
    • Output specifications: 4-15 second clips at 24 FPS, aspect ratios from 21:9 to 9:16, 768p default with 2K regeneration, 32kHz stereo audio

  • Prompting

    Together AI API Access:
    • Access MiniMax H3 via Together AI APIs using the endpoint MiniMaxAI/MiniMax-H3
    • Authenticate using your Together AI API key in request headers
    • Create a video request with a text prompt, optionally attaching images, video clips, and audio references, then poll until the video completes
    • Describe reference and editing relationships in natural language, such as referencing camera movement from one video while matching vocals to a supplied audio clip
    • Outputs run 4 to 15 seconds with native stereo audio, at 768p by default with 2K available
    • Available on Together AI with serverless access

  • Applications & use cases

    Advertising & E-Commerce:
    • Produce product and campaign video with accurate on-screen text and brand rendering
    • Keep products and brand elements consistent using multi-image reference inputs
    • Generate localized variants with native dialogue across 11 languages

    Film & Motion Design:
    • Create opening titles, animated posters, and motion pieces with synchronized sound design
    • Transfer camera movement and motion from reference footage to new generations
    • Edit existing clips through natural language, from re-voicing characters to changing scenes

    Product & Interface Showcase:
    • Turn product designs and UI mockups into polished demonstration video
    • Animate websites, apps, and game concepts with matched music and effects
    • Iterate on creative directions quickly from the same reference set

Related models
  • Model provider
    MiniMax AI
  • Type
    Video
  • Resolution/Duration
    Up to 2K, 4-15s
  • Deployment
    Serverless
  • Parameters
    33B
  • Price

    $0.1391  / video

  • Input modalities
    Text
    Image
    Video
    Audio
  • Output modalities
    Video