MiniMax H3 Max AI Video Generator: Fast Video Generation on fal
Run MiniMax H3 Max in your browser. This AI video generator turns a prompt—or a start and end frame—into clips of 5 to 15 seconds with native stereo audio. MiniMax H3 is the open-weight multimodal generation model; H3 Max is fal's speed-tuned variant we host here.
Why generate AI video with MiniMax H3 Max?
PixExact gives you a simple workflow on fal's H3 Max model: write a prompt, optionally add images, and generate video with synced audio in one pass.
fal's H3 Max, from the MiniMax H3 base model
MiniMax H3 Max is a post-trained variant of MiniMax's open-weight H3 video model. fal Research tuned it for prompt adherence and aesthetics, then co-designed the serving path with its own inference stack.
Video and audio in one generation
The H3 Max model predicts picture and soundtrack together. You get video with native stereo audio—dialogue, sound effects, and ambience—rather than a silent clip you have to score later.
Text-to-video and image-to-video
Describe a shot, or upload a first frame and an optional last frame. Image-to-video follows the source image's aspect ratio; text-to-video lets you pick 16:9, 9:16, 21:9, 4:3, 1:1, or 3:4.
Built for 768p iteration
H3 Max defaults to 768p (1344×768 at 16:9, 24 fps). fal reports that a 5-second 768p clip can finish inference in under 3 seconds on its stack—faster than real time for short takes. PixExact also offers 480p and 1080p.
How to generate video with MiniMax H3 Max
Three steps from prompt to a downloadable clip. No ComfyUI graph and no local GPU required on PixExact.
Write a prompt
Describe camera, action, and sound in one prompt. For image-to-video, upload a start frame and, if you want, an end frame. Keep the brief specific: shot length, motion, and audio all help the model.
Choose length and resolution
Clips run from 5 to 15 seconds. Pick 480p, 768p, or 1080p. 768p is the resolution fal tuned H3 Max around; 15 seconds at 480p is the cheapest way to test a shot.
Generate and download
Click generate. PixExact queues MiniMax H3 Max on fal, then returns a clip with synchronized audio ready to preview, download, or reuse in other AI tools on the site.
What this AI video generation model does well
H3 Max keeps MiniMax H3's multimodal context understanding—text and images in one request—then trades 2K output for faster 768p generation. Here is what that looks like in practice.
Text-to-video with a detailed prompt
The generation model follows timed beats more reliably than many earlier Hailuo-class checkpoints, which is the point of fal's post-training. Write the shot list in order: who is on screen, how the camera moves, and what you should hear.
“5 seconds, 16:9, 768p. A courier on a rain-slick night market alley, slow dolly forward under red neon. Wok sizzle, rain on tin, neon hum. No music.”
Image-to-video and first-to-last frames
Upload a still as frame one. Add an end image and H3 Max interpolates the journey between them—the same image-to-video path MiniMax documents as first-and-last-frame mode. Output ratio follows the image you pass in.
“Hold the camera locked. Morning light crawls across the room, dust in the beam, curtains lift once. Soft room tone, a distant kettle.”
Native stereo audio, not a silent render
MiniMax H3 was designed so audio and video share one omni transformer pass (32 kHz stereo on the base model). H3 Max keeps that behavior: lip-sync, foley, and score can arrive in a single generation instead of a separate audio pipeline.
“A chef looks into camera and says, "Don't crowd the pan." Window daylight, white tile, pan sizzle under her voice. Medium close-up, 50mm.”
Short clips, 5 to 15 seconds
Each run produces a clip up to 15 seconds at 24 fps. That length fits social cuts, product loops, and animatics. For native 2K output, MiniMax's H3 base model (not H3 Max) is the path MiniMax and fal document.
“15 seconds, 9:16. Pixel-art endless runner along a steep city street, jump and duck on beat, chiptune and jump blips, score HUD in the corner.”
Use cases for MiniMax H3 Max
A fast 768p video model with synced audio is most useful when you need many short takes, not a finished feature.
Short social clips
Generate 5 to 15 second vertical or square clips for Reels, Shorts, and TikTok. Native audio means a hook can include voice or sound effects without a second tool.
Product and campaign tests
Iterate on a slogan, a still, or a first-and-last pair. fal's published examples include product macros, motion posters, and multi-shot spots held inside one generation.
Illustration, pixel art, and style holds
Image-to-video is useful when you already have a look. fal has shown H3 Max holding a pixel-art runner, claymation, and cut-paper looks across a clip—not a guarantee on every prompt, but a realistic use case.
Animatics and multiple shots
H3's multimodal context is built for complex briefs: several beats, a character that should not drift, and audio that hits on contact. Use it to pre-viz a scene before a longer edit.
MiniMax H3 FAQ
What is MiniMax H3?
MiniMax H3 is MiniMax's general-purpose multimodal video generation model. It reads text, images, video, and audio in one context and generates video with native stereo audio, typically 5 to 15 seconds. MiniMax released open weights for the H3-Base omni transformer (about 33B parameters) on Hugging Face. Full 2K delivery uses an extra regenerate stage (H3-Regenerate-2K); the hosted Context-IR preprocessor is not in the open-source drop.
What is MiniMax H3 Max?
MiniMax H3 Max is fal Research's post-trained variant of the MiniMax H3 base model, served on fal's inference stack. It is tuned for prompt adherence and aesthetics, with 768p as the default. PixExact's MiniMax H3 page runs this H3 Max model for text-to-video and image-to-video (including an optional last frame).
How is MiniMax H3 Max different from MiniMax H3?
Standard MiniMax H3 is MiniMax's open-weight model. On fal it can target 480p, 768p, 2K, and 4K (fal describes 2K/4K as upscales from a 768p base) and includes reference-to-video plus editing-style endpoints. H3 Max is fal's closed post-train: faster at 768p, no separate weights release listed, and 2K/4K are not what H3 Max is for. Pick H3 Max for speed on this generator; pick base H3 when you need 2K or a full reference pack.
Is MiniMax H3 the same as Hailuo 2.3?
No. Hailuo is MiniMax's consumer video brand. Hailuo 01 and Hailuo 02 were earlier generations. MiniMax presents H3 as the next general-purpose model and demos it on hailuoai.video. Hailuo 2.3 still appears as a separate family on fal. Treat H3 / H3 Max and Hailuo 2.3 as different products.
Is MiniMax H3 good? Is H3 Max really #1 for image-to-video?
It depends which board you read. fal cites Design Arena's image-to-video Elo (H3 Max at 1,341 on that board) and Artificial Analysis's image-to-video-with-audio ranking (listed there as MiniMax H3 Turbo 768p). Those are third-party leaderboards, not PixExact tests. Quality is strong for short, audio-synced clips; it is not a drop-in replacement for every model on every shot.
Does MiniMax H3 generate audio?
Yes. Both MiniMax H3 and H3 Max generate audio with the picture—native stereo sound, including speech, sound effects, and music when the prompt asks for them. You do not need a separate audio input for a basic text or image generation. Reference audio is a feature of the base H3 / reference-to-video APIs, which this PixExact page does not expose yet.
Can I run MiniMax H3 locally? How do I run it in ComfyUI?
The open-weight H3-Base checkpoints can be deployed locally; MiniMax documents SGLang, vLLM, Diffusers, and ComfyUI recipes. ComfyUI also ships MiniMax H3 API partner nodes (cloud billed) for text-to-video, first/last-frame, and reference-to-video. The official Context-IR and 2K regenerate modules were not in the first open-source drop. H3 Max itself is a hosted fal post-train—there is no public H3 Max checkpoint to run offline. PixExact runs H3 Max in the cloud.
Is MiniMax H3 open source? Will H3 Max be open sourced?
MiniMax H3 ships open weights (H3-Base) under MiniMax's community license—not the full training stack, and not Context-IR. That is open weights, not a complete open-source release in the strict sense. fal has not listed separate open weights for H3 Max; it is a post-train of the public H3 base. There is no announced open-source date for H3 Max.
Is MiniMax a Chinese company?
Yes. MiniMax is a Shanghai-based AI company (fal's MiniMax explorer lists Shanghai, China). It builds language, speech, music, and video models, including the Hailuo video products and MiniMax H3.
How much does MiniMax H3 / H3 Max cost?
On PixExact, MiniMax H3 Max is billed in credits: 3 per second at 480p, 5 at 768p, and 10 at 1080p. New accounts get free credits to try it. On fal.ai, H3 Max is pay-per-second (fal published promotional rates through 14 September 2026, then higher list rates; check fal's live pricing). MiniMax M3 is a separate language model—its API price is not the cost of this video model.
How do I use MiniMax H3 Max for free?
PixExact gives new users free credits, which you can spend on MiniMax H3 Max like any other video model here. fal.ai has also advertised five free H3 Max generations a day in its own sandbox; that allowance is fal's product, not PixExact's. There is no unlimited free AI video tier.
How do I use MiniMax H3 Max on PixExact?
Open this page (the default model is MiniMax H3 Max), enter a prompt, optionally upload start/end frames, set duration and resolution, then generate. For API use, fal documents minimax/h3-max/text-to-video and minimax/h3-max/image-to-video. Integrating H3 Max into your own workflow means calling those endpoints or using this generator—not installing local weights.
How long does MiniMax H3 Max take, and how long are the clips?
Output is 5 to 15 seconds at 24 fps. fal's own inference timings (8 September 2026) show H3 Max text-to-video from well under a second for 5 seconds at 480p up to tens of seconds for 15 seconds at 1080p; a 5-second 768p job is the clip they cite as rendering in under 3 seconds on their stack. End-to-end wait on PixExact also includes queue and upload, so your wall-clock time will be longer than fal's raw inference number.
What resolutions and aspect ratios does H3 support?
On this generator, H3 Max offers 480p, 768p, and 1080p, with durations of 5 to 15 seconds. Text-to-video aspect ratios are 16:9, 9:16, 21:9, 4:3, 1:1, and 3:4. Image-to-video follows the uploaded frame. Native 2K / full 2K is a MiniMax H3 (base) workflow, not H3 Max.
How many references can I use in one generation?
MiniMax's H3-Base reference mode allows up to 9 images, 3 video clips, and 3 audio clips, 12 files in total (audio cannot stand alone). fal's H3 Max reference-to-video endpoint is documented with a similar 12-file cap. This PixExact page currently supports text plus start/end stills, not a full reference pack or audio references.
Can MiniMax H3 edit a video I already have?
MiniMax describes precise video editing as part of the H3 system. This page is a generator: it creates new clips from prompts and stills. To change footage you already have, use PixExact's AI video editor or another editing tool. After you generate here, you can download the file and edit it in any NLE.
Can I use MiniMax H3 Max for commercial projects?
Hosted H3 Max on fal is documented as allowed for commercial use subject to fal's terms. PixExact generations follow PixExact's terms of service. If you self-host the open MiniMax H3 weights, read the MiniMax H3 Community License (MiniMax has used revenue-cap community licenses on related releases—verify the current file on Hugging Face before you ship a product).
What is fal.live, and is that this generator?
fal.live is fal's experimental livestream: channels run MiniMax H3 Max Director, a realtime WebRTC session you can steer with new prompts while video keeps playing. It is not the clip generator on this page. PixExact uses the standard H3 Max text-to-video and image-to-video endpoints, which return a finished file.
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Ready to run MiniMax H3 Max?
Start from a prompt or a still. Generate 5 to 15 seconds of AI video with native stereo audio, then download the clip. New accounts include free credits.