project
MiniMax H3 Max - MiniMax's real-time video generation model
MiniMax H3 Max is a real-time video generation model from MiniMax, based on the open-source H3 platform with post-training and inference optimizations. The model supports text-to-image and image-to-video generation with simultaneous audio generation; a 5-second 768p video can be generated in less than 3 seconds...
What is MiniMax H3 Max?
MiniMax H3 Max is a real-time video generation model launched by MiniMax, based on the open-source H3 platform with post-training and inference optimizations. The model supports text-to-video and image-to-video generation with simultaneous audio generation. A 5-second 768p video can be generated in less than 3 seconds, achieving 35 times the throughput of native H3. It ranks first in both Artificial Analysis and Design Arena image-to-video leaderboards. Currently, it is integrated with the MiniMax Open Platform and MiniMax Design, supporting cutting-edge scenarios such as 24/7 AI live streaming and real-time interactive content.
MiniMax H3 Max Main Functions
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Wensheng/Tusheng VideoSupports text or image input to generate complete video clips of 480p/768p, 5–15 seconds, 24fps.
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Synchronous audio generationIt automatically generates matching audio while outputting video, achieving true audio-visual integration.
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Real-time speedA 5-second 768p video takes less than 3 seconds to generate, and a 15-second video takes about 15 seconds to complete, meeting the needs of real-time live streaming.
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High throughput inferenceThe throughput is approximately 35 times that of native H3, supporting high concurrency and uninterrupted content production.
The technical principles of MiniMax H3 Max
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Open source base + post-training optimizationBased on the open-source MiniMax H3 platform, fal incorporates new data and verifiable reinforcement learning (RL) for post-training, continuously optimizing prompt word compliance and visual performance, while also making targeted adaptations for its own inference infrastructure.
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Inference engine co-optimizationBy jointly optimizing the model architecture and inference engine, the generation latency of a single request is reduced to an extremely low level, and the overall throughput is increased to about 35 times that of native H3, making real-time live streaming possible.
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Sparsity and Hardware Acceleration (FastH3)Teams like FastVideo compressed the native H3's 49 Transformer Forwards to 4, and combined them with VSA technology with 90% sparsity, achieving the generation of a 15-second 768p video in 13 seconds on 8 B200 cards, with a single Blackwell card achieving up to 14x speedup.
How to use MiniMax H3 Max
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API callsAccess the MiniMax Open Platform (https://platform.minimaxi.com/) to access the Video Generation V2 API, and generate videos by entering text or images.
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MiniMax DesignVisit the MiniMax Design website and directly enter "Prompt" or upload an image to generate video content in the visual interface.
MiniMax H3 Max's core advantages
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Rapid generationA 5-second 768p video can be completed in less than 3 seconds, and a 15-second video can be generated in about 15 seconds, crossing the speed threshold of live streaming.
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Ultra-high throughputThe throughput is approximately 35 times that of native H3, supporting high concurrency and uninterrupted content production.
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Audio and video synchronizationIt automatically outputs matching audio while generating video footage, achieving true audio-visual integration.
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Leading the listIt ranked first in both Artificial Analysis and Design Arena's graphic video rankings.
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Ecological OpennessBuilt on the open-source H3 platform, it has been downloaded over 24 million times in three weeks, with over 300 derivative models.
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Real-time interactionIt supports 24-hour AI live streaming and real-time rewriting of audience commands, evolving video generation from a tool into a content system.
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Flexible resolutionIt offers both 480p and 768p resolutions to suit different scenarios and bandwidth requirements.
MiniMax H3 Max Competitor Comparison
| Comparison Dimensions | MiniMax H3 Max | LTX-2.5 |
|---|---|---|
| Model properties | Post-training optimization based on open-source H3, open API + open-source ecosystem | Fully open source (Apache 2.0), open authority + API hosting |
| Core positioning | Real-time live-stream video generation ("generation is faster than playback") | Consumer-grade real-time video generation (can run locally, faster than playback) |
| Generation speed | 5-second 768p video < 3 secondsGenerate; 15-second video (approx. 15 seconds) | 5-second 768×512 video (approx.) 4 seconds(RTX 4090); 10 seconds 720p (approx.) 6.8 seconds（2×GB200） |
| Resolution limit | 480p / 768p | The highest native 4K(50 FPS), supports multiple resolutions including 1216×704, 720p, and 1080p. |
| Audio capabilities | Video andMatching audio synchronization generation | nativeAudio and video co-generationSupports audio condition control and audio-visual synchronization. |
| Hardware threshold | Primarily uses cloud-based API calls, requiring the fal/MiniMax inference infrastructure. | Consumer-grade GPUs can run locally (RTX 4080/4090, quantized version with 6-8GB VRAM is sufficient). |
| Throughput | Approximately native H3 35 timesSupports high-concurrency live streaming | Kernel-level optimization, resulting in the highest inference efficiency improvement compared to similar models. 30 times |
| Rankings | Artificial Analysis (Image-based video with audio)No. 1（Elo 1202） | The LTX-2.5 Fast / Pro also ranked high on the same list. |
| API Costs | about $2.40/minute（768p） | Fast file $0.09/second(720p with audio), approximately $5.40/minute; self-hosted marginal cost is only electricity. |
Application scenarios of MiniMax H3 Max
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24-hour AI live streamingWith a generation speed of less than 3 seconds, enable 24/7 live streaming on Twitch or your own website where viewers can input prompts to change the visuals and storyline in real time.
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Brand Ads Quick Generation: Batch output of high-resolution product demonstration videos via API, significantly reducing commercial shooting costs and production cycles.
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Mass production of short dramas/short videosWith its cost-effective API pricing and high throughput, it supports MCN agencies in updating massive amounts of narrative-driven short video content daily.
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Game concept and motion designIt accurately generates game character demonstrations, UI animations, and scene integration content based on reference images, accelerating the game development pipeline.
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Localized content for cross-border e-commerceCombined with multilingual voice generation capabilities, it can mass-produce product promotion and social media marketing videos adapted to different overseas markets.