MiniMax H3 Reference to Video

MiniMax H3 Reference to Video creates native-stereo video from a prompt plus optional image, video, and audio references. It can combine up to nine images, three video clips, and three audio clips, giving a single generation access to appearance, motion, scene, and sound cues.

The route supports 4–15 second outputs at 768P or 2K, with adaptive and six fixed aspect ratios. Reference clips can influence completed-task duration, so final billing prefers reported usage.total_seconds; the selected output duration is only the fallback when that usage value is absent.

Highlights

• Unified multimodal references. Mix images, video clips, and audio clips in one request to guide character identity, motion, environment, timing, and sound.
• Native stereo output. Generate video with synchronized stereo audio rather than treating sound as a separate post-production step.
• Longer reference-guided shots. Select 4–15 seconds of output and provide up to three reference videos, each 2–15 seconds with a 15-second combined limit.
• High-resolution delivery. Choose native 768P or 2K produced through an in-context regeneration upscale, with adaptive or fixed cinematic and social aspect ratios.

Pricing

Final billing uses completed-task usage.total_seconds when present. If it is absent, the selected duration is used. The time charge is $0.08 per total second at 768P or $0.13 per total second at 2K. The first five reference images are included; images 6–9 add $0.04 each. Reference audio has no separate term in this pricing formula.

Fallback duration prices below apply only when usage.total_seconds is absent and before any extra-image surcharge.

When to Use

Prompt Guide

State what must remain consistent from the references, then describe the new action and scene in chronological order. Separate character, motion, camera, lighting, and audio direction into clear clauses. Use reference media only when it contributes a distinct cue, and remember that reference-video time can affect usage.total_seconds and therefore the final charge.

{
  "prompt": "Keep the lead character's face, green jacket, and silver bicycle consistent with the reference images. Follow the smooth turn and forward motion from the reference video as the character rides through a sunlit botanical garden. Begin with a medium tracking shot, arc slowly to the front, and end on a wide reveal. Preserve the referenced birdsong and add subtle bicycle-wheel movement in native stereo.",
  "images": [
    "https://example.com/character-front.jpg",
    "https://example.com/character-outfit.jpg"
  ],
  "videos": ["https://example.com/bicycle-motion.mp4"],
  "audios": ["https://example.com/garden-ambience.wav"],
  "duration": 10,
  "aspect_ratio": "16:9",
  "resolution": "2K",
  "aigc_watermark": false
}

Technical Specs

Related Models

• minimax/h3/image-to-video — animate an input image with the H3 family.
• minimax/h3/text-to-video — generate H3 video directly from text.
• minimax/hailuo/2.3/pro/image-to-video — compare with MiniMax's Hailuo Pro image animation route.