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MiniMax H3 Open Image to Video: Animate Stills on Models and API | RunComfy

minimax/minimax-h3-open/image-to-video

MiniMax H3 Open Image to Video animates a first frame (optional last frame) into 5–15s 480p/768p video with native stereo audio.

First-frame image URL. Output framing follows this image's aspect ratio.
Motion, camera, and optional Audio: line. Keep identity consistent with the still.
Optional last-frame image to guide the ending pose or composition.
Output resolution. 480p is faster/cheaper; 768p is sharper.
Length of the generated video in seconds (5–15).
Fixed seed for reproducible results. Use -1 for a random seed.
Idle
The rate is $0.05 per second for 480p, and $0.11 per second for 768p.

Introduction To MiniMax H3 Open Image to Video

MiniMax's MiniMax H3 Open Image to Video animates a first-frame still into a 480p or 768p clip, optionally steering the ending with a last-frame image while rendering native stereo audio in the same pass.
Trading frame-by-frame animation and separate sound design for one still plus a motion brief, MiniMax H3 Open Image to Video helps designers, ad teams, and product marketers move from a locked look to a finished beat quickly.
For developers, MiniMax H3 Open Image to Video on RunComfy can be used both in the browser and via an HTTP API, so you don't need to host or scale the model yourself.
Ideal for: Product Reveals | Character Moments | Still-to-Clip Ads

MiniMax / MiniMax H3 Open Image To Video#


This page covers the open-weights image-to-video path in the MiniMax H3 family. Upload a first frame, describe the motion and soundtrack, and optionally add a last frame to lock the ending; the model returns an MP4 with native stereo audio at 480p or 768p.


The output canvas follows the input image's aspect ratio, so start with a clear, well-lit still. Iterate MiniMax H3 Open Image to Video at 5 seconds, then extend once identity and camera feel right. For the official MiniMax H3 image-to-video endpoint with different resolution tiers, see the related MiniMax H3 models on RunComfy.


Pricing#


MiniMax H3 Open Image to Video is billed per second of generated video.


ResolutionRate
480p$0.05/s
768p$0.11/s

A 5-second 480p clip costs $0.25. A 5-second 768p clip costs $0.55. Cost scales linearly with duration and resolution.

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Frequently Asked Questions

What is MiniMax H3 Open Image to Video best used for?

MiniMax H3 Open Image to Video animates a first-frame still into a short clip with native stereo audio, optionally guided by a last-frame image. It fits product reveals, character moments, and still-to-clip ads when identity should stay locked to the upload.

How does MiniMax H3 Open Image to Video differ from the official MiniMax H3 image-to-video model?

MiniMax H3 Open Image to Video is the open-weights path with 480p and 768p output. The official MiniMax H3 image-to-video model on RunComfy uses a different resolution ladder (such as 768p and 2K). Choose MiniMax H3 Open Image to Video for the open-weights route and pricing tiers on this page.

What inputs does MiniMax H3 Open Image to Video require?

MiniMax H3 Open Image to Video requires a first-frame image and a prompt that describes motion, camera, and sound. An optional last_image can lock the ending pose. Resolution is 480p or 768p; duration is 5–15 seconds. Output framing follows the input image's aspect ratio.

Does MiniMax H3 Open Image to Video keep the subject consistent with my still?

MiniMax H3 Open Image to Video anchors appearance to the first-frame image. Write motion verbs and camera moves in the prompt, and state what must not change (face, outfit, background). Clear, well-lit uploads give more stable identity than soft or heavily cropped stills.

Does MiniMax H3 Open Image to Video include audio?

Yes. MiniMax H3 Open Image to Video generates native stereo audio with the picture. Add an Audio: line with entrance cues for ambience, dialogue, or effects; otherwise the model supplies a soundtrack that fits the scene.

Can developers use MiniMax H3 Open Image to Video through the RunComfy API?

Yes. Prototype in the RunComfy model UI, then call the same MiniMax H3 Open Image to Video template through the RunComfy API with identical parameters. Generations consume usd / credits on both paths.

How much does MiniMax H3 Open Image to Video cost on RunComfy?

MiniMax H3 Open Image to Video is billed per second of generated video: $0.05 per second at 480p and $0.11 per second at 768p. A 5-second 480p clip costs about $0.25; cost scales with duration and resolution.

When should I add a last frame to MiniMax H3 Open Image to Video?

Add a last_image on MiniMax H3 Open Image to Video when you need a controlled ending—such as a smile, product hold, or pose change—while keeping the opening look from the first frame. Leave it empty when you only want free motion from a single still.

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Examples Of MiniMax H3 Open Image to Video

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