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MiniMax H3: 768p & 2K Text-to-Video with Stereo Audio | RunComfy

minimax/minimax-h3/text-to-video

MiniMax H3 Text-to-Video turns a written prompt into a 4–15-second 768p or 2K video with native stereo sound. Use a separate H3 workflow for image, video, or audio references.

The aspect ratio of the generated video.
The resolution of the generated video. Choose 768p for faster/cheaper drafts or 2k for higher detail.
The length of the generated video in seconds (4–15).
Idle
The rate is $0.09 per second for 768p, and $0.145 per second for 2k.

Introduction To MiniMax H3 Video Creation

MiniMax H3 is MiniMax's general-purpose multimodal model family. This Text-to-Video page turns a written prompt into a 4–15-second video at 24 FPS with stereo sound generated alongside the picture. Choose 768p or 2K resolution. Across the broader family, separate H3 workflows use images, video, and audio as references for identity, motion, camera, voice, sound, or editing; those media inputs are not available on this page.

Why Choose MiniMax H3#


MiniMax H3 is MiniMax's multimodal model family for generating and editing images, video, and audio through natural-language instructions. This page provides MiniMax H3 Text-to-Video: turn one written prompt into a 4–15-second video at 24 FPS, at either 768p or 2K, with native stereo audio generated with the picture. It accepts text only; use the linked H3 workflows when you need image, video, or audio references.


MiniMax H3 advantageWhat it means for you
Selectable 768p or 2K with native stereo audioDraft faster at 768p, or generate detailed visuals, dialogue, effects, ambience, and music in one pass at 2K—reducing separate upscaling, sound-design, and synchronization stages.
Language-directed Omni-ReferenceAcross MiniMax H3 workflows, assign images, video, and audio different roles—such as identity, product appearance, motion, camera style, voice, or music—so several sources can guide one coherent result.
V2V transfer and targeted editingMiniMax H3 can carry over motion or camera language and revise selected visual or audio elements while preserving the rest, giving production teams a path beyond regenerating a shot from scratch.
Delivery-ready timing and framingGenerate 4–15 seconds at 24 FPS in six aspect ratios, so hooks, product reveals, and multi-beat scenes fit cinematic, web, feed, portrait, or vertical placements with less recutting and recropping.

Best Use Cases#


  • Advertising and product launches: Use MiniMax H3 for hero shots, product reveals, campaign concepts, and short commercials where camera direction and sound should be designed together.
  • Social media content: Use MiniMax H3 to create 9:16 Shorts, Reels, and Stories or 1:1 feed assets with a clear opening hook and platform-ready framing.
  • Film and commercial previsualization: Use MiniMax H3 to test a camera move, lighting plan, action beat, scene transition, or temporary soundtrack before committing to production.
  • Brand and stylized storytelling: Use MiniMax H3 to explore title sequences, animated posters, character moments, and graphic looks when a written idea needs a polished audiovisual treatment.

How It Works#


  1. Write the shot: Tell MiniMax H3 what appears, what changes over time, how the camera moves, how the scene should look, and what should be heard.
  2. Choose the delivery format: Select an aspect ratio, a 4–15-second duration, and either 768p or 2k resolution.
  3. Generate and refine: The model creates video and stereo audio together. Review motion, text, faces, lip sync, and sound timing, then change one instruction at a time.

Parameters#


The first table lists the controls exposed by the MiniMax H3 Text-to-Video tool on this page.


ParameterRequiredTypeDefaultRange / OptionsHow to choose
prompt*Yes (*)StringExample prompt1–7,000 charactersGive MiniMax H3 a structured brief covering the subject, one main action, camera, setting and lighting, visual style, audio, and intended ending. Clear structure matters more than using the full limit.
aspect_ratioNoString16:921:9, 16:9, 4:3, 1:1, 3:4, 9:16Match MiniMax H3 output to the destination: 21:9 for ultra-wide cinematic shots, 16:9 for general video and ads, 4:3 for editorial or retro framing, 1:1 for feeds, 3:4 for portrait products, and 9:16 for vertical social video.
resolutionNoString768p768p, 2kUse 768p for cheaper drafts and faster iteration; use 2k when the shot needs higher detail for large placements or crops.
durationNoInteger54–15 seconds, in 1-second stepsUse 4–7-second MiniMax H3 clips for one action or fast iteration, 8–10 seconds for a simple change, and 11–15 seconds only when the prompt defines a clear beginning, development, and ending.

  • Required field.

The following table summarizes the wider MiniMax H3 model family. Inputs described for first/last-frame and Omni-Reference modes are available through separate workflows, not as controls on this Text-to-Video page.


Core dimensionMiniMax H3
ModelMiniMax-H3
Output durationMiniMax H3 outputs 4–15 seconds.
Output aspect ratioFirst/last-frame mode: follows the original aspect ratio of the input image.<br>Text-to-Video mode: follows the user-selected 21:9, 16:9, 4:3, 1:1, 3:4, or 9:16 ratio.<br>Omni-Reference mode: uses one of those six ratios or Auto, which lets MiniMax H3 choose the output ratio.
ResolutionMiniMax H3 supports two tiers. 768p: for aspect ratios from 16:9 through 9:16, the short side is 768 pixels; for wider output, total resolution is about 1 MP—for example, 21:9 is 1536×672.<br>1440p / 2K: for aspect ratios from 16:9 through 9:16, the short side is 1440 pixels; for wider output, total resolution is about 3.7 MP—for example, 21:9 is 2976×1248.
Output frame rateMiniMax H3 outputs at 24 FPS.
Output audioEvery MiniMax H3 result includes native stereo audio.
First/last-frame inputImages: 0, 1, or 2; width and height each 256–5760 pixels; aspect ratio from 5:2 to 2:5 (0.4–2.5). With no image input, MiniMax H3 runs in Text-to-Video mode—the tool provided on this page.
Omni-Reference inputImages: up to 9; width and height each 256–5760 pixels.<br>Videos: up to 3; each 2–15 seconds; combined video duration up to 15 seconds; width and height each 256–5760 pixels; aspect ratio from 5:2 to 2:5 (0.4–2.5).<br>Audio: up to 3 clips; each 2–15 seconds; combined audio duration up to 15 seconds. Audio must accompany an image or video and cannot be the only reference.<br>Mixed input: up to 12 files total. With no image, video, or audio input, the workflow becomes Text-to-Video.
Supported input formatsMiniMax H3 accepts video: H.264/AVC or H.265/HEVC; embedded audio: AAC or MP3.<br>Image: JPG, JPEG, PNG, WEBP, HEIC, or HEIF.<br>Audio: WAV or MP3.
Input size limitsEach video: 50 MB; each image: 30 MB; each audio file: 15 MB. There is no separate combined-media limit beyond the per-file limits, but the API request body is limited to 64 MB; URL-based media input is recommended.
Prompt limitThe MiniMax H3 product guide allows up to 7,000 characters. This Text-to-Video deployment currently accepts 1–7,000 characters, as shown in the page-control table above.

Pricing#


MiniMax H3 Text-to-Video pricing depends on resolution and duration:


ResolutionPrice per second5s10s15s
768p$0.09$0.45$0.90$1.35
2K$0.145$0.725$1.45$2.175

For batches of 1–4 outputs, calculate the total as duration × per-second rate × output count.


Prompting Tips & Examples#


Use this reusable MiniMax H3 prompt structure:


[subject + defining details] + [one action over time] + [camera framing and movement] + [setting + lighting] + [visual treatment] + [dialogue / effects / ambience / music] + [ending frame or constraint]


  • Separate motion: Describe subject movement and camera movement independently.
  • Show sequence: Use “begins with,” “then,” and “ends on” when the clip has more than one beat.
  • Name sound sources: Tell MiniMax H3 who speaks, what makes each sound, the ambience, and whether music should lead or stay subtle.
  • Limit competing ideas: One main subject, one primary action, and one coherent style are easier for MiniMax H3 to follow.

Weak prompt


> A luxury watch ad, cinematic and dynamic, with music.


Improved MiniMax H3 prompt


> A brushed-steel automatic watch rests on black volcanic stone. A narrow studio light sweeps across the sapphire crystal as the second hand moves and condensation beads on the case. Begin with an extreme macro, then make a slow 30-degree orbit, ending on the watch face. High-contrast luxury commercial, deep black background. Audio: soft mechanical ticking and one low cinematic pulse; no dialogue.


The improved version gives MiniMax H3 an identifiable subject, timed action, separate camera direction, lighting, finish, sound sources, and a final frame that can be reviewed.


How MiniMax H3 Compares#


Use this MiniMax H3 comparison as a model-family guide; maximum resolution and duration may not be available together, and RunComfy workflows can expose different inputs, resolution tiers, and audio controls.


ModelResolutionMax durationAudioStandout
MiniMax H3768p or 2K15sNative stereo (voice, SFX, music)Relates text, image, video, and audio references through language for V2V motion transfer and production editing; public weights are planned but have not yet been released.
Hailuo 021080p~10sNoneStrong prompt adherence and physics-focused motion suit gymnastics, dance, product movement, and other silent action shots that will receive audio later in production.
Kling 3.0Up to 4K15sNative audio with lip-syncCoordinates multi-shot camera changes with multilingual, speaker-assigned dialogue and lip-sync—useful for scripted ads, storyboards, and character-led scenes.
Seedance 2.01080p15sJoint audio and videoCombines dense image, video, and audio references with joint audiovisual generation and precise lip-sync for identity-sensitive ads, branded stories, and reference-heavy edits.
Veo 3.14K8sNative dialogue and effectsPairs prompted dialogue and effects with first/last-frame, reference-image, and scene-extension controls—suited to cinematic transitions and assembled sequences.

For Hailuo 02, the listed maxima are mode-specific: 1080p output is limited to 6 seconds, while 10-second output is available at 512p or 768p.


For MiniMax H3, Omni-Reference and V2V capabilities belong to sibling workflows; the Text-to-Video tool on this page remains prompt-only.


What sets MiniMax H3 apart is the combination: one general-purpose model family that relates text, image, video, and audio, generates native stereo sound, and offers both 768p ($0.09/s) and 2K ($0.145/s). Choose MiniMax H3 when you want to start from a text brief and keep a path to reference-guided creation or editing in sibling workflows. Based on publicly available information, run the same brief through each model before committing a pipeline.


More Models to Try#


If MiniMax H3 is not the right starting point for a project, compare these focused workflows on RunComfy:


  • MiniMax H3 Image-to-Video: Start from an image and optionally guide the final frame when composition, identity, or product appearance must stay anchored.
  • MiniMax H3 Reference-to-Video: Combine images with optional video and audio when motion, camera style, voice, music, or other source details must carry over.
  • Hailuo 02 Image-to-Video: Try an earlier MiniMax generation when you want a focused image-animation workflow.
  • Hailuo 2.3 Pro: Animate a still image in 1080p with stable, physics-aware motion, nuanced facial expression, and natural lighting—well suited to polished product, portrait, and character shots.
  • Kling 3.0: Animate a start image with an optional end frame, element references, timed shot prompts, and synchronized audio for controlled brand and character sequences.
  • Seedance 2.0 Pro: Mix up to nine images, three videos, and three audio clips to keep identity, camera language, and synchronized speech, effects, and music aligned across 4–15-second clips.

Official Resources#


  • MiniMax H3 launch post
  • MiniMax official website

Related Models

kling-video-o3/pro/image-to-video

Pro-tier image animation: 3-15s cinematic clips from $0.123 per second.

kling-video-o1/video-to-video/reference

Transform reference clips with cinematic fidelity, refined motion, and seamless style control for creative professionals.

runway-gen-3-alpha/turbo/image-to-video

Lightning-fast video creation with lifelike and smooth kinetics.

kling-video-o1/standard/text-to-video

Create lifelike cinematic video clips from prompts with motion control.

seedance-2.0-mini/video-to-video

Reshape a source clip from a text prompt with native audio.

wan-3.0/reference-to-video

Wan 3.0 Reference To Video builds clips from image, video, audio refs

Frequently Asked Questions

Is MiniMax H3 available now on RunComfy?

Yes. MiniMax H3 Text-to-Video is available in the browser and through the RunComfy API using your account credits.

What is MiniMax H3?

MiniMax H3 is MiniMax's general-purpose multimodal generation and editing model family. Its broader task design covers text, image, video, and audio, while individual workflows expose different inputs. This page provides the prompt-only Text-to-Video workflow.

What can MiniMax H3 be used for?

MiniMax positions H3 for advertising, branding, e-commerce, film, title design, animated posters, short-form storytelling, product and UI concepts, games, virtual characters, and stylized animation. The current Text-to-Video workflow is best for short concepts that can be directed from a written prompt.

What resolution and clip length does MiniMax H3 Text-to-Video support?

On this page, MiniMax H3 supports 768p and 2k resolution. Choose any whole-second duration from 4 through 15 seconds; the default is 5 seconds. Use 768p for cheaper drafts and 2K when you need higher detail.

Does MiniMax H3 generate audio?

Yes. This Text-to-Video workflow generates native stereo audio with the video. Describe dialogue, ambience, sound effects, or music in the prompt; there is no separate audio toggle. Results can vary, so review lip synchronization and audio timing.

Can I use image, video, or audio references on this MiniMax H3 page?

No. This page is the prompt-only MiniMax H3 Text-to-Video workflow, and its API accepts only prompt, aspect_ratio, resolution, and duration. For source media, use a separate H3 Image-to-Video or Reference-to-Video workflow.

What does multimodal context mean for the MiniMax H3 model family?

In reference-enabled H3 workflows, natural language can assign different roles to text, images, video, and audio. For example, one source might define camera movement, another the character, and another the voice. This is a model-family capability, not a media-upload feature on the current page.

Do I need to self-host MiniMax H3?

No. RunComfy provides MiniMax H3 through the browser and an HTTP API, so you do not need to host or scale the model yourself. MiniMax's July 31 launch post described a conditional plan to release model weights; verify current availability and license terms before planning self-hosting.

How much does MiniMax H3 Text-to-Video cost?

MiniMax H3 Text-to-Video costs $0.09 per generated second at 768p and $0.145 per generated second at 2K. At 768p, a 5-second video costs $0.45, a 10-second video costs $0.90, and a 15-second video costs $1.35. At 2K, those lengths cost $0.725, $1.45, and $2.175. Batch generation multiplies the duration-based cost by the number of outputs.

How is MiniMax H3 different from Hailuo 02?

MiniMax describes Hailuo 02 as focusing on architecture, data, and scale, while MiniMax H3 focuses on generalizing tasks and modalities. H3 also adds native stereo audio and selectable 768p or 2K output to its Text-to-Video workflow.

How do I go from testing MiniMax H3 in the browser to API integration?

Test the prompt, aspect ratio, resolution, and duration in RunComfy. Then call the same MiniMax H3 Text-to-Video template through the API with prompt (required), aspect_ratio, resolution (768p or 2k), and duration (4–15). This workflow has no media-upload fields.

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