MiniMax H3 Multimodal Video API
MiniMax H3 is MiniMax's video model family for text, image, and reference driven generation. Create 5 to 15 second clips, guide motion with an optional last frame, preserve subjects from reference images, or select H3 Developer when generated audio fits the workflow. Atlas Cloud brings H3, H3 Fast, H3 Max, and H3 Developer into one API workflow, with standard pricing starting at $0.038 per second. Start building today.
MiniMax H3 is developed by MiniMax. Atlas Cloud (operated by Atlas Cloud AI LLC) provides access to it and does not own it. All trademarks belong to their respective owners.
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Compare MiniMax H3 Video Generation Endpoints
Match MiniMax H3, H3 Fast, H3 Max, and H3 Developer endpoints to text, image, or reference inputs by resolution, duration, audio capability, aspect ratio, and standard price.
| Modality | Description |
|---|---|
| MiniMax H3 Max T2V API (Text to Video) | Enter a text prompt to generate a cinematic video at 480P or 768P with a duration from 5 to 15 seconds. Choose 16:9, 9:16, 1:1, or adaptive framing for advertisements, trailers, and social content at the standard price of $0.05 per second. |
| MiniMax H3 Max I2V API (Image to Video) | Begin with a first frame and direct its animation through a text prompt, with an optional last frame controlling the final composition. With 480P or 768P output lasting 5 to 15 seconds, this endpoint suits product motion, key art animation, and storyboard transitions at $0.05 per second. |
| MiniMax H3 Fast T2V API (Text to Video) | For text driven 480P production, MiniMax H3 Fast generates cinematic clips lasting from 5 to 15 seconds. Its 16:9, 9:16, 1:1, and adaptive options support rapid concept videos and platform specific content at the standard price of $0.046 per second. |
| MiniMax H3 Fast I2V API (Image to Video) | Animate a supplied first frame with prompt controlled motion, adding an optional last frame when the ending requires visual direction. At 480P and 5 to 15 seconds, the endpoint fits product demonstrations, animated artwork, and short social assets at $0.046 per second. |
| MiniMax H3 Fast Reference to Video API | Keep the subject from a reference image while a text prompt defines the generated 480P video. This 5 to 15 second route works well for recurring characters, recognizable products, and consistent campaign visuals, with standard pricing of $0.046 per second. |
| MiniMax H3 Developer T2V API (Text to Video) | Turn written prompts into videos with generated audio through the self hosted MiniMax H3 Developer endpoint. Select 480P, 768P, or 2K output in 16:9, 9:16, or 1:1 for narrative concepts, campaign previews, and social productions at $0.05 per second. |
| MiniMax H3 Developer I2V API (Image to Video) | Supply an opening image, an optional final frame, and a text prompt to create motion with generated audio. Output options of 480P, 768P, and 2K make this self hosted endpoint suitable for animated key art, product scenes, and storyboard sequences at $0.05 per second. |
| MiniMax H3 Developer Reference to Video API | When continuity depends on existing media, one or more reference images or videos can preserve the subject in a new prompt directed video with generated audio. Use 480P, 768P, or 2K output for recurring characters and connected branded sequences at the standard price of $0.05 per second. |
| MiniMax H3 T2V API (Text to Video) | A written prompt becomes a cinematic 2K video with a selectable duration from 5 to 15 seconds. Frame each result in 16:9, 9:16, 1:1, or an adaptive aspect ratio for polished trailers, vertical stories, and campaign assets at $0.038 per second. |
| MiniMax H3 I2V API (Image to Video) | Bring a first frame to life at 2K resolution by combining it with a text prompt and, when needed, an optional last frame. The 5 to 15 second output range supports product reveals, character animation, and planned visual transitions at the standard price of $0.038 per second. |
| MiniMax H3 Reference to Video API | Reference guided generation retains the subject from an input image while a prompt directs the resulting 2K video. Running from 5 to 15 seconds, these clips suit character focused scenes and consistent product visuals at $0.038 per second. |
Sight, Sound and Editing in One MiniMax H3 API Call
Every clip the MiniMax H3 API returns runs up to fifteen seconds at 1440p with native stereo sound, built from any mix of text, image, video and voice references, and the same call can also edit characters, scenes and dialogue inside footage you already have.
Twelve Reference Files, One MiniMax H3 API Call
One MiniMax H3 API request accepts up to nine reference images, three video clips and three audio tracks, capped at twelve files. Rather than reading them as separate slots, the model treats text, picture and sound as one context, pulling a character from a photo, a camera move from a clip and a mood from a track into the same scene. Teams with existing material get a direct route to a finished shot.
Native Stereo Sound in Every Clip
Every result ships with sound. Dialogue, ambience and music are produced in native stereo during the same pass that renders the picture at 24 frames per second, so nothing has to be scored or dubbed afterwards. Because timing is decided while the shot is generated, footsteps, speech and cuts stay locked to the action. Short ads and social spots come out ready to publish.
Prompt-Level Edits Through the MiniMax H3 API
Need a cat swapped for a dog, a green screen replaced, or one line of dialogue rewritten? The MiniMax H3 API applies edits like these to video you supply, covering characters, objects, backgrounds, lighting and effects, while parts you did not mention stay close to the original. Prompts run to 7000 characters, so a dozen changes can be stacked into one pass. That makes iterating on an approved cut practical.
Voice Timbre Transfer and Dialogue Swaps
Send a voice sample alongside your images or footage and the generated character speaks in that timbre. Up to three audio references are allowed per request, each between two and fifteen seconds, and audio must always accompany a visual input rather than arrive on its own. Existing dialogue can also be replaced and the performance adjusted to match. Series work keeps one recognizable voice across every episode.
1440p and Six Aspect Ratios in the MiniMax H3 API
Clips run from five to fifteen seconds, and the 1440p mode puts 1440 pixels on the short side between 16:9 and 9:16, or roughly 3.7 megapixels at wider ratios such as 2976 by 1248 for 21:9. Six ratios are selectable, from cinematic 21:9 to vertical 9:16, and the MiniMax H3 API can also choose one for you. That range covers a trailer, a product loop and a vertical drama without switching models.
Production Formats In, No Conversion Step
If your source files come straight off a camera or an editing timeline, they go in as they are: H.264 and H.265 video, JPG, PNG, WEBP, HEIC and HEIF stills, plus WAV and MP3 audio. Per-file limits sit at 50MB for video, 30MB for images and 15MB for audio, while passing assets by URL keeps requests within the 64MB body limit. On Atlas Cloud the whole set runs through one OpenAI-compatible key with pay-as-you-go billing.
Same Prompt, Three Engines: MiniMax H3 API Head to Head
Every clip in this set comes from one identical prompt sent to the MiniMax H3 API and two other video models hosted on Atlas Cloud, so motion, sound, and instruction fidelity can be compared without changing a single word.
15 seconds, 16:9 landscape short video. Live-action footage of a late-night self-service laundromat, blended with hand-drawn glowing animation into a mixed-media image. A small self-service laundromat, its fluorescent lights faintly flickering; inside are running washing machines, plastic laundry baskets, and an old bench, with a single sock lying on the floor. The whole space is quiet, carrying a faint, nostalgic mood. It has the texture of one-handed handheld phone footage, with noticeable camera shake; the white fluorescent light causes the exposure to fluctuate between bright and dim; glass surfaces carry ambient reflections; there's a focus lag when the lens moves close to objects. The image should not be as polished and orderly as a commercial ad — the overall feel should be like a genuine documentary snapshot, as if you stumbled in by chance late at night and grabbed the shot while chasing some strange, dreamlike vision.
Generated with MiniMax H3 on Atlas Cloud
Generated with Seedance 2.0 on Atlas Cloud
Generated with Wan-2.7 on Atlas Cloud
First-person perspective · eye-level height · handheld gaming camera Scene: The shot simulates a player operating a modern-warfare FPS game, both hands holding an assault rifle while slowly advancing along the outer perimeter of a military base. The player moves forward along a road beside cover, the crosshair sweeping across the passage ahead; after a brief pause, they fire a few rounds toward a distant objective, then continue pushing forward — like the live gameplay footage of an ordinary player. Lighting: The cool-toned natural light of a modern military base interweaves with smoke and muzzle fire. The image is realistic and crisp, with the metallic weapon and the battlefield dust and haze carrying a AAA-game quality. Camera work: The camera has a slight handheld sway as the player moves — first advancing slowly, then making small left-and-right sweeps to observe, with a subtle recoil shake when firing, before finally continuing to push steadily forward.
Generated with MiniMax H3 on Atlas Cloud
Generated with Seedance 2.0 on Atlas Cloud
Generated with Wan-2.7 on Atlas Cloud
Match Every Video Brief to the Right MiniMax H3 Route
Move from 480P drafts with MiniMax H3 Fast to 2K campaign shots and audio supported concepts with H3 Developer; the MiniMax H3 family covers product motion, social variants, recurring characters, and storyboard previews from text, images, or references.
Social Drafts with MiniMax H3 Fast
MiniMax H3 Fast turns text prompts into 480P clips lasting 5 to 15 seconds. Social teams can test campaign hooks, pacing, and aspect ratios before committing to higher resolution production.
Product Motion from Approved Stills
Animate a first frame and optionally guide the ending with a last frame through the image route. Merchandising teams gain product reveals, catalog motion, and launch assets from approved stills.
2K Campaign Shots with MiniMax H3
Choose the 2K MiniMax H3 route when a campaign needs high resolution output. Agencies can produce polished hero shots, cinematic product moments, and high resolution social assets from text or images.
Recurring Characters from References
Supply a reference image to keep the subject recognizable while a prompt directs the new clip. Studios can create recurring character shorts, connected promos, and branded product scenes with stronger visual continuity.
Multi Format Storyboard Previews
Need landscape, square, and vertical previews from one brief? Text generation supports 16:9, 1:1, 9:16, or adaptive framing, helping creative teams prepare storyboard options for several placements without changing families.
Audio Concepts with MiniMax H3 Developer
Use MiniMax H3 Developer to generate video with audio from text prompts or source images. Creative teams can shape pitch sequences, character moments, and campaign concepts where picture and sound share one workflow.
How MiniMax H3 Compares on Video API Essentials
Compare MiniMax H3 text to video variants with other Atlas Cloud models across maximum resolution, clip length, aspect ratios, and listed standard pricing.
| Model | Max Resolution | Clip Length | Aspect Ratios | Listed Base Price |
|---|---|---|---|---|
| MiniMax H3 Text-to-Video | 2K | 5 to 15 seconds | 16:9, 9:16, 1:1, adaptive | $0.038 per second |
| MiniMax H3 Fast Text-to-Video | 480P | 5 to 15 seconds | 16:9, 9:16, 1:1, adaptive | $0.046 per second |
| MiniMax H3 Max Text-to-Video | 768P | 5 to 15 seconds | 16:9, 9:16, 1:1, adaptive | $0.05 per second |
| MiniMax H3-Developer Text-to-Video | 2K | - | 16:9, 9:16, 1:1 | $0.05 per second |
| Kling V3.0 Turbo Text-to-Video | 1080p | 3 to 15 seconds | 16:9, 9:16, 1:1 | $0.112 |
| Veo 3.1 Lite Text-to-video | 1080p | 4, 6, or 8 seconds | 16:9, 9:16 | $0.05 |
How to Use MiniMax H3 on Atlas Cloud
Get started in minutes — follow these simple steps to integrate and deploy models through Atlas Cloud's platform.
Create an Atlas Cloud Account
Sign up at atlascloud.ai and complete verification. New users receive free credits to explore the platform and test models.
Why Use MiniMax H3 on Atlas Cloud
Combining the advanced MiniMax H3 models with Atlas Cloud's GPU-accelerated platform provides unmatched performance, scalability, and developer experience.
Performance & flexibility
Low Latency:
GPU-optimized inference for real-time reasoning.
Unified API:
Run MiniMax H3, GPT, Gemini, and DeepSeek with one integration.
Transparent Pricing:
Predictable per-token billing with serverless options.
Enterprise & Scale
Developer Experience:
SDKs, analytics, fine-tuning tools, and templates.
Reliability:
99.99% uptime, RBAC, and compliance-ready logging.
Security & Compliance:
SOC 2 Type II, HIPAA alignment, data sovereignty in US.
MiniMax H3 API Models, Pricing, and Setup
MiniMax H3 is MiniMax's video model family for generating clips from text, images, and reference media. On Atlas Cloud, the family includes standard H3, H3 Fast, H3 Max, and H3 Developer across text to video, image to video, and selected reference to video routes. Available output profiles range from 480P to 2K, depending on the chosen model.
Start with a text prompt, animate a first frame with an optional last frame, or preserve a subject through a supported reference to video route. H3 Developer can also generate audio with the video, while each variant has its own route, resolution, and parameter limits.
Create an Atlas Cloud account and API key, then select the exact model ID and review that model's current parameter schema. Send your request through the Atlas Cloud OpenAI compatible API and process the returned video in your application. Start building today.
MiniMax H3 Fast provides text to video, image to video, and reference to video routes at 480P for clips lasting 5 to 15 seconds. Its standard price is $0.046 per generated second, and the image route accepts a first frame with an optional last frame. Use it when 480P output and access to all three input workflows match your project.
Choose standard H3 when your workflow requires 2K output. Pick H3 Fast for 480P text, image, or reference input, H3 Max for 480P or 768P text and image generation, or H3 Developer for 480P, 768P, or 2K workflows with generated audio.
Image to video routes accept a first frame and can optionally use a last frame to guide the ending. Reference to video is available for standard H3, H3 Fast, and H3 Developer, with supported reference inputs varying by endpoint. H3 Max currently provides text and image routes on Atlas Cloud.
Standard H3 outputs 2K clips lasting 5 to 15 seconds, while H3 Fast supports 480P for the same duration range and H3 Max supports 480P or 768P for 5 to 15 seconds. For text to video, these three variants offer 16:9, 9:16, 1:1, and adaptive framing, while H3 Developer supports 16:9, 9:16, and 1:1. Check the selected endpoint's schema because image and reference routes may expose different controls.
Billing is based on each generated second. Standard prices are $0.038 per second for H3, $0.046 per second for H3 Fast, and $0.05 per second for H3 Max or H3 Developer. Estimate a request by multiplying the route's standard rate by the selected output duration.
No. The verified Atlas Cloud profiles explicitly include generated audio for H3 Developer text, image, and reference routes, but do not state audio support for standard H3, H3 Fast, or H3 Max. Choose H3 Developer when audio must be part of the documented output.
First confirm that the model ID matches the intended text, image, or reference route. Validate every required field against that endpoint's current schema, especially the prompt, media input, resolution, duration, and aspect ratio. If the request still fails, inspect the returned error before retrying instead of resubmitting the same invalid payload.
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