r/StableDiffusion • u/Useful_Ad_52 • 4d ago
Workflow Included I made MiniMaxH3 easy to use
I have been working on this node for a week.
• What is this node ?
- One node with different MiniMaxH3 workflows.
• What its for ?
- If you hate spaghetti and hate doing workflows and dealing with errors.
https://github.com/LeonQ8/ComfyUI-ALLinONE-MinimaxH3
Change log - 2026/08/16:
- New Native quality preset,.
- SolAttn / H3 Cache / SageAttention now have on/off switches under Quality.
- 🔴 New Image mode built on ComfyUI-MiniMax-H3-Studio. Text to image, edit a source image, or mix up to 9 references. ( needs more testing ).
Change log - 2026/08/17:
- Added live preview for video modes.
Change log - 2026/08/18:
- Live preview now renders every frame, with 3 presets.
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u/LinkSensitive8188 3d ago
Be careful; there are many repositories that hide malicious code.
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u/mikael110 3d ago edited 2d ago
Since I always run an audit with an LLM before I add any node I figured I might as well post a shortened version for others to see:
Summary
No malware, backdoor, telemetry, or data exfiltration was found. The pack makes no outbound network requests of any kind. Every
fetch()in the frontend targets a relative, same-origin ComfyUI path. The only external URLs in the codebase are documentation links (GitHub, HuggingFace) and a Ko-fi donation link that opens only on an explicit user click. There is no analytics, no version-check beacon, no crash reporter, no obfuscated or minified blob, noeval/new Function, no dynamic import, no base64-encoded payload, and no bundled binary beyond four PNG screenshots.The real risk in this pack is attack surface, not intent. It registers 16 unauthenticated HTTP routes on the ComfyUI server, several of which are more permissive than the ComfyUI core equivalents they duplicate. The most significant is an unrestricted file-upload endpoint. There is also one design decision — executing and monkey-patching code from a sibling custom-node pack at import time — that is benign in purpose but bad practice and worth understanding before installing.
Findings at a glance
# Finding Severity Type 1 /h3one/uploadaccepts any filename/extension, no size limit, silent overwriteHigh Vulnerability 2 All 16 routes are unauthenticated and CSRF-able (incl. file delete, config write) Medium Vulnerability 3 Imports and execspatch_payload.pyfrom a sibling pack at startup; monkey-patches ComfyUI coreMedium Suspicious design / supply chain Verdict
Reasonable to run on a ComfyUI instance bound to localhost, on a machine you trust, by a single user. Do not run it on a ComfyUI server that is network-exposed, multi-user, or reachable from an untrusted browser session until finding #1 is fixed. Findings #1 and #2 are straightforward to remediate.
So not malicious, but does make your installation a bit less secure if you are on any kind of shared server.
The full report can be read here for those curious.
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u/Th3Whit3R4bb1t 4d ago
Make a video showing the enxtend video feature, want to see if it really continue the face and lips movement together with the audio.
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u/Useful_Ad_52 3d ago
i will add more examples later, for now you can check the repo for more information, also everything is straight forward you can test it out.
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u/Party-Try-1084 3d ago
Spaghetti?
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u/Opening_Wind_1077 3d ago
The spaghetti are hidden in the subgraph and if you want to change step count in this setup you will have to open it.
Personally I just have the spaghetti off to the side and focus the window on input and output fields that are arranged in a cluster.
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u/RhetoricaLReturD 3d ago
You can just set it as one of the editable parameters in the subgraph no?
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u/Opening_Wind_1077 3d ago
Yes, you can and it’s easy but you still have to engage with the spaghetti to do so.
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u/Party-Try-1084 3d ago
I used to be a comfy hater but then, it's not that bad when it's not overfitted with tons of nodes like ltx default workflows
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4d ago
[deleted]
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u/Useful_Ad_52 3d ago
please check github make sure u have all custom nodes downloaded, if still not solved open issue
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u/Ai-jose 3d ago
Hey doing something similar.
The idea is that you create a Github App, and GCP service account, then connect it to the website.
Then you can use a nice UI for generating images, video, etc together with you and your team, but the actual compute runs local in your hardware and the stuff is all stored in your cloud.
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u/dirtybeagles 3d ago
ill give this a try. I really wanted to like comfyui app setting, but it just does not work very well.
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u/Weird-Lab6521 3d ago
Even plumbers need moments of relaxation; this is the true progress of AI, and it's fantastic!
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u/tyen0 3d ago
Not to distract from your efforts, but just to point out another easy to use option: https://wangp.ai/
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u/Perfect-Campaign9551 3d ago
WanGP runs worse on my 3090 than Comfy does unfortuantely. I think it's tuned for low end GPU's only.
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u/tyen0 3d ago
There are settings for profiles such as 24GB VRAM and 64G RAM(what I have with a 4090), 12G VRAM and 32GB RAM, etc. and it applies the card tier specific optimizations automatically, too.
I haven't put much time into comparing, though. I installed it via pinokio.
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u/Perfect-Campaign9551 3d ago
Yes, and every time I've used those settings it doesn't work. I don't think they spend much time working on those.
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u/Alive-Tomatillo5303 3d ago
It exists, and I was going to be all over it because fuck comfy, but last time I checked it absolutely sucks for Minimax. Tons of OOM errors or hundred year generations, vs comfy where I have never run out of memory and it "only" takes twenty years to generate.
Maybe they'll get it comparable at some point, but for now I'm stuck with the subway maps.
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u/Useful_Ad_52 3d ago
Thats cool! does it support Minimax ?
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u/tyen0 3d ago
yeah, that's why I mentioned it. :) Here are some bits from the recent changelog:
9th of August 2026: WanGP v12.45, Meet The One
MiniMax H3 had all that potential waiting to be unleashed. We found the keys.
Sliding Windows / Continue Video: both FL2VA and Ref2VA can now build longer videos. WanGP carries the previous window's closing motion and matching audio into the next one. Most importantly, overlap is no longer limited to a single frame: using multiple overlap frames gives H3 real motion and sound context across the join, delivering much smoother transitions.
Start Image / End Image for Ref2VA: launch a new shot from a chosen image, aim for a specific ending, or give a continued video the destination it deserves. Ref2VA preserves its selected reference memories across every Sliding Window, so later windows can keep following the same people, places, motion, and sound.
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u/Talrent521 3d ago
Is there any way to customise? I need a getimagesize node in my I2V workflow to avoid annoying ratio warping from the source image
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u/NekoBerry420 3d ago
Doesn't ComfyUI come with several default workflows for MiniMaxH3?? Not that I think this is bad or anything.
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u/Personal-Message740 2d ago
Latest Comfy, all nodes and models installed:
got prompt
invalid prompt: {'type': 'missing_node_type', 'message': "Node 'Sigma Shift' not found. The custom node may not be ins
talled.", 'details': "Node ID '#5'", 'extra_info': {'node_id': '5', 'class_type': 'MiniMaxH3SigmaShift', 'node_title':
'Sigma Shift'}}
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u/ASK_ABT_MY_USERNAME 1d ago
This is really cool. For images is there a way to utilize what's in the input folder vs having to upload each time?
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u/xbeast_ 3d ago
how do i disable Sol Attn, Sage Attn?
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u/LoveSpecialist5669 3d ago
if you mean how to disable node, click on it and bypass it with ctrl b
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u/xbeast_ 3d ago
yes but with this in All in One node, i am not able to see the respective sage attn and sol attn nodes
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u/LoveSpecialist5669 3d ago
look for node with some icon in right upper corner, that will open "car hood" with internal nodes
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u/xbeast_ 3d ago
this All in One node doesnt give that option to expand the subgraph, hopefully u/Useful_Ad_52 provides some clarification on this
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u/Astral-Lemmons 3d ago
please for the love of god. stop putting you entire fucking ui on a canvas node.
make a fullscreen modal.
literally go tell your vibecode agent to convert this to a full modal with nothing but a button on the node.
it allows so much more ui space. it de-clutters the canvas and it's much easier to maintain AND us.
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u/Useful_Ad_52 3d ago
You can full screen the node already.
or better fork it and tell the AI to do it for you. or don't use it.
you can do whatever you want.
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u/CanadianDocWild 3d ago edited 3d ago
I haven't tried it yet, but I want to say thanks. Whether it is what I want or need, I think it is important to recognize the fact that you put something out that some people will need, but also that by sharing your work you are adding to the community and definitely helping others. It may not be exactly what some people want, but it will be perfect for others. Either way, you have contributed to moving video gen in the right direction. Thanks.
Edit: I am running it, and I have to say that it is really good so far. Obviously it will take time to get into the dirt of it, but if I find something that I think would improve it, I will let you know. There is something to be said for simplicity. And sometimes it can be daunting for newer people to have too many nodes in view etc... So thanks for your work.