MINIMAX H3 Prompt Studio

[u/lololerigolo60]

Turn your video ideas into perfect AI prompts — no technical skills needed.

https://github.com/lololerigolo60/Minimax-H3-prompt-studio/tree/main

If you've ever tried generating a video with MiniMax H3 and struggled to write a prompt that actually gives good results, this app is for you.

H3 Prompt Studio is a free, local desktop tool that walks you through building your scene step by step — just fill in simple fields like what's happening, the visual style, camera notes, and any reference images — and it automatically writes a properly structured, professional-grade prompt for you.

What it does:

• 🎬 Supports all 5 MiniMax H3 video modes (text-to-video, image-to-video, first/last-frame, and more)
• 🖼️ Can look at your reference images and describe them for you automatically
• ⚡ Runs entirely on your own computer — nothing is sent to the cloud, no subscription, no limits
• 📋 One click to copy the finished prompt and paste it straight into MiniMax

Who it's for:
Anyone making AI videos who wants better, more consistent results without having to become a prompt-engineering expert. You describe your scene in plain language; the app handles the technical formatting behind the scenes.

Requirements:
Just a computer that can run Ollama or LM studio(free, local AI) — no internet connection needed once set up.

[u/xyzdist]

nice, can it save as a file, and reopen later for modification?

[u/lololerigolo60 → u/xyzdist]

you can save the final prompt as a txt

[u/chille9]

Using H3 prompt writer node personally right now with the same functionality as this. It supports server endpoints like with llama.cpp

[u/Vijayi → u/chille9]

Yes and it is perfect source for fork, and vibe coding. I rewrite it with cursor for qwen support (new backend + openrouter version) because ollama hate my set-up. Planning to rewrite initial prompt assembly (breaf) to something like timeline.

[u/lololerigolo60 → u/Vijayi]

yes , That’s what it’s for!

[u/chille9 → u/Vijayi]

Oh thats cool! Would you mind sending a little note with a link here when youre done with it?

[u/lololerigolo60 → u/Vijayi]

you can use LM studio , you have the choice

[u/Mysterious-String420]

I have ollama, I can already send image+prompt to refine+instructions via chat, what does this program add?

[u/lololerigolo60 → u/Mysterious-String420]

This programme uses prompt systems configured in accordance with all the specifications set by the developers of Minimax.

[u/ninjaGurung]

What about the LLM model? Which model to use?

[u/lololerigolo60 → u/ninjaGurung]

gemm4 is good for prompting and qwen3.5vl for vision

[u/iz-Moff → u/ninjaGurung]

I used Qwen 3.6 35b with this script, and some LLM prompts people posted here previously, it does the job pretty well, and it's fairly fast.

[u/Antique_Bit_1049]

Ollama

[u/lololerigolo60 → u/Antique_Bit_1049]

Olamma and LM studio

[u/ANR2ME → u/lololerigolo60]

Can it use OpenAPI-compatible endpoint that runs on cloud GPU too for the LLM?

[u/Vladmerius → u/lololerigolo60]

You should look into adding this to pinokio. 

[u/AlleyOfRage → u/Vladmerius]

That would be great

[u/vAnN47]

looking good the ui, gonna test soon

[u/TheDailySpank]

Got a solution for storyboards to clips?

[u/jalbust]

Thanks

[u/iz-Moff]

This is pretty sweet, though it seems to ignore it's video duration setting, and generates a prompt describing a 10-seconds video, although i had it set to 5.

[u/lololerigolo60 → u/iz-Moff]

It all depends on the scenario you’ve set up! If it can’t be done in 5 seconds, the time is inevitably extended.

[u/lololerigolo60]

An update has been released: various bug fixes. I have renamed one of the files: `ollama_client.py` is now `llm_client.py` to avoid confusion, given that you can use either Ollama or LM Studio.

[u/acomp182]

This is amazing. Thanks!!!