--- title: "MiniMax H3 Max" description: "MiniMax H3 Max on Kuro: fal's own retuning of MiniMax H3. Fifteen seconds, native audio, and almost nothing to configure." canonical_url: "https://meetkuro.com/models/minimax-h3-max/" locale: "en" model: "minimax-h3-max" --- # MiniMax H3 Max MiniMax · Shorts · standard fal's own retuning of MiniMax H3. Fifteen seconds, native audio, and almost nothing to configure. ## What it costs - 5s · 480p: 21 credits (≈ $0.50) - 5s · 768p: 33.5 credits (≈ $0.80) Dollar figures are approximate, at the Starter plan's rate of $19.00 for 800 credits. ## What it takes - **Aspect ratios**: 16:9 4:3 1:1 3:4 9:16 21:9 - **Resolutions**: 480p 768p - **Duration**: 5–15 seconds - **Reference images**: Not accepted - **Last frame**: Accepted - **Audio**: Always generated ## When to reach for it MiniMax's H3 as fal retuned it — the one clip model here that runs on fal alone, because fal did the post-training and nobody else sells these weights. What it buys is *length with sound*: fifteen seconds at 768p is 100 credits, where FLUX 3 asks 212.5 for the same fifteen at 720p and Seedance 2.5 asks 289. Five seconds is 33.5 credits, or 21 at 480p. It is not the cheapest clip model in the catalog and it is worth being clear about that. P-Video is a quarter of the price, and if the shot is under ten seconds that is where to start. P-Video stops at ten seconds; Veo stops at eight. Above that, this is the least expensive way to get a single continuous take that arrives with its own audio. Audio is native and always on — there is no sound toggle, because there is no silent tier to save money on. Say what the shot should sound like as well as what it looks like, and put spoken lines in quotation marks. There is almost nothing else to configure. Two resolutions — 480p to rehearse, 768p to deliver — six aspect ratios, and any length from five to fifteen seconds. Images go in as frames rather than references: a Start image fixes the opening composition and hands the clip its aspect ratio, and an End image gives the motion somewhere to arrive. The End frame needs the Start frame beside it, since it is a destination rather than a subject. What it does not do is carry a subject. There is no reference tray, no reference video and no reference audio, so anything that is not in those two frames has to be in the prompt. When a face or a product has to stay the same across several shots, that is Seedance 2.5's job. ## How to prompt MiniMax H3 Max Describe what you want in your own words and Kuro writes the prompt for you. If you would rather write it yourself, this is what MiniMax H3 Max responds to. MiniMax H3 Max takes a prompt and an optional start and end frame, and every take arrives with its own sound. The prompt is sent exactly as written — the provider's prompt rewriter is switched off — so the model sees your words and nothing else. Say everything that matters, give the sound its own sentence, and write any spoken line word for word. It accepts by far the longest prompt in Kuro, up to 50,000 characters, which makes a timed beat sheet practical. A long brief still wants one clear action per beat and an event, not a fade, at the end. With a first frame, describe only what changes; with both frames, describe only the middle. Its strength is prompt adherence rather than reference control: a plainly described shot comes back close to what was asked, which makes it worth trying before a premium model rather than after one. ### What it can't do - No reference images, video or audio. To hold a face or product, put it in a frame. - A last frame needs a first frame, and there is no automatic length. - Sound is always on. - 480p or 768p, with 480p as the rehearsal tier. With a first frame, the output takes the frame's shape. - Native speech is an invented voice that differs from take to take; replace a recurring character's voice afterwards. - No negative prompt. State an absence positively. ### Use something else when… - You need 1080p or higher: [Veo 3.1](https://meetkuro.com/models/veo-3.1.md). - A face or product must be held from reference photos: [Kling v3 Omni](https://meetkuro.com/models/kling-v3-omni-video.md). - The clip must be silent without post-work: [P-Video](https://meetkuro.com/models/p-video.md). ## MiniMax H3 Max is one pick in the composer. Every model in this catalog runs from the same prompt bar, priced in the same credits. --- ## About Kuro Kuro is an AI picture studio: prompt-driven images, clips, voice-overs and music, and storyboard-backed films with consistent characters across every scene. Agents connect over MCP and can generate directly: ``` claude mcp add kuro https://api.meetkuro.com/mcp --transport http ``` The app is at https://app.meetkuro.com and requires an account. Each guide, model page, comparison and free tool page on this site (not a tool's variants, and not the index pages) has a Markdown twin at its own URL plus `.md`, and so do /benchmarks/, the English /agents/ page (as /agents.md) and the MCP tool reference. Model catalog: https://meetkuro.com/models/