What is MiniMax H3 AI Video Generator?
MiniMax H3 is a production‑focused, multimodal AI video model that turns text prompts, images, or reference media into finished 2K video clips with synchronized audio. Launched by MiniMax on July 31 2026, H3 can generate coherent motion, maintain character consistency across shots, and support six aspect ratios (21:9, 16:9, 4:3, 1:1, 3:4, 9:16). The generator is accessed through the TryH3 web interface, where users can preview a static first‑frame for free before spending credits on the full motion render.
Features
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Native 2K output – No upscaling; videos stay crisp on large screens.
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5 s to 15 s clips – Choose any whole‑second duration within this range.
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Six fixed aspect ratios – Perfect for cinema, social feeds, and vertical Shorts.
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Multimodal reference support – Up to 9 images, 3 videos, and 3 audio clips per request, enabling precise control over character, motion, style, and sound.
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Character consistency – Faces, outfits, and visual style stay stable across multiple shots.
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Synchronized ambient audio – Automatically generated sound effects and music that match camera movement.
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Free static first‑frame preview – Test composition without spending credits.
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Commercial‑use license – All videos rendered with purchased credits can be used in ads, client work, and monetized content.
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Credit‑based pricing – No subscription lock‑in; credits are valid for 12 months.
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Fast generation – Typical render time 1–3 minutes per clip.
How It Works
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Describe Your Scene
- Write a prompt (up to 7,000 characters) that includes subject, action, environment, camera movement, lighting, style, and desired sound.
- Optionally upload a first frame, last frame, or a set of reference images/videos/audio.
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Preview the First Frame (Free)
- The system creates a static opening‑frame image at the selected aspect ratio.
- Review composition, framing, and lighting before committing credits.
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Unlock & Render
- When satisfied, click ### Unlock. Credits are deducted based on resolution (768P vs. 2K), duration, and reference inputs.
- H3 renders the full motion clip with native 2K quality and synchronized audio.
- Download the MP4 file directly from the generator page.
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Iterate if Needed
- Adjust the prompt or reference assets and repeat the preview‑unlock cycle until the desired result is achieved.
Pricing
| Pack | Price (after 30 % off) | Regular Price | Credits Included | Approx. 5 s @ 768P videos | |------|-----------------------|---------------|------------------|---------------------------| | ### Boost Pack | ### $20.93 | $29.90 | 700 credits | Up to 28 clips | | ### Creator Pack | ### $34.93 | $49.90 | 1,600 credits | Up to 64 clips | | ### Studio Pack | ### $69.93 | $99.90 | 3,300 credits | Up to 132 clips |
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Credit validity: 12 months from purchase.
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No auto‑renewal for one‑time packs.
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Failed generations are automatically refunded.
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Commercial use is included with any paid pack.
Subscriptions are also available for recurring credit replenishment, but the above packs provide a one‑time, subscription‑free option.
Helpful Tips
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Be specific in the prompt: Mention subject, camera angle, motion direction, and sound cues in that order.
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Use high‑quality reference images: Clear, well‑composed frames give the model a better starting point for motion.
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Leverage the free preview: Treat the static first‑frame as a storyboard; tweak composition before spending credits.
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Keep duration short for rapid iteration: 4‑6 seconds render faster and cost fewer credits, ideal for testing ideas.
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Match aspect ratio to platform: 9:16 for TikTok/Reels, 16:9 for YouTube, 1:1 for Instagram feed.
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Combine modalities wisely: Use one image for character identity, one video for camera movement, and one audio clip for ambience to get the most control.
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Check character consistency: If the same character appears in multiple shots, reuse the same reference image to maintain visual continuity.
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Plan credit usage: A 2K, 10‑second clip consumes roughly 30 credits; calculate ahead to avoid surprises.
Frequently Asked Questions
Q: What is TryH3?
A: TryH3 is the web interface that powers the MiniMax H3 AI video generator. It lets you input prompts, upload references, preview a static first frame for free, and unlock full video renders.
Q: How do credits work?
A: Each render is quoted in credits based on resolution, duration, and reference inputs. One‑time packs are valid for 12 months; subscription credits renew each billing cycle and expire at period end. Failed jobs are refunded automatically.
Q: What video lengths and resolutions are supported?
A: Clips can be 4 – 15 seconds long. Output resolutions are 768P (default, lower‑credit) and native 2K (higher‑credit). All clips include synchronized stereo audio.
Q: Can I upload my own images?
A: Yes. Switch to ### Image to Video, upload a first frame (or both first and last frames), and the model will animate the scene according to your prompt.
Q: Is commercial use allowed?
A: Absolutely. Videos generated with purchased credits come with a commercial‑use license for ads, client projects, and monetized content.
Q: How long does a generation take?
A: Typically 1–3 minutes, depending on clip length, resolution, and current queue load.
Q: Do I need a credit card for the free preview?
A: No. The static first‑frame preview is completely free and does not require any payment information.
Q: What aspect ratios can I choose?
A: 21:9, 16:9, 4:3, 1:1, 3:4, and 9:16 are available for text‑to‑video. Image‑to‑video inherits the uploaded frame’s ratio; reference‑to‑video can use any of the six fixed ratios.
Q: How does character consistency work across shots?
A: By providing the same reference image (or video) for a character, H3 keeps facial features, clothing, and style stable throughout multiple generated clips.