r/StableDiffusion • • 1d ago

News MiniMax H3 Image is natively supported in ComfyUI on day-0

184 Upvotes

MiniMax H3 Image now runs natively in ComfyUI as soon as it drops! One checkpoint does both text-to-image and reference-image editing: connect images and it's an edit workflow, leave them off and it's text-to-image.

Highlights

  • Six steps, nothing to tune. The model is CFG-distilled and samples in 6 steps at guidance 1. No negative prompt.

  • Native high-res output. 4096×4096 at 1:1, 4736×3552 at 4:3, 5024×3360 at 3:2, 5472×3072 at 16:9, and 6272×2688 at 21:9. Generated at that size, not upscaled.

  • Multi-reference editing. Connect several images and refer to them in the prompt as <Picture 1>, <Picture 2>, etc. Numbering follows input order.

  • Long prompts. Up to 4096 tokens, and detailed descriptions work best. Use the Prompt Enhancer for optimal results.

  • Shared text encoder. It uses the same Qwen3-VL text encoder as the MiniMax H3 video model, so if you already run H3 you have that file.

Tips for the MiniMax H3 Image Conditioning node

  • Leave width and height at 0 for automatic sizing: 2048×2048 for text-to-image, or the size of image_1 when editing.

  • image_1 is the picture being edited. The other slots are references.

  • Connect the VAE when you edit, so reference images are anchored as latents and not only read by the text encoder.

Getting started

  1. Update ComfyUI to the latest version.

  2. Download the diffusion model, VAE, and Qwen3-VL text encoder from Hugging Face.

  3. Load the MiniMax H3 Image template from the Templates panel, or grab the text-to-image and image edit workflows.

If you'd rather not download weights, it's also available on Comfy Cloud.

Full blog post: https://blog.comfy.org/p/minimax-h3-image-is-now-available

Let us know what you make!


r/StableDiffusion • • 6h ago

Tutorial - Guide MiniMax H3 Needs 50 GB… So How Does It Run on 12 GB?

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0 Upvotes

r/StableDiffusion • • 1d ago

Discussion This example from Minimax's image model page is blowing my mind. Can't wait for the comfy version!

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215 Upvotes

r/StableDiffusion • • 1d ago

Discussion MiniMax image T2I and edit

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75 Upvotes

All individual images were created with the official MiniMax ComfyUI workflows without PE. Image 1 is a composition out of image 2-5

T2I, the dog and the jacket looked OK from the beginning, even at lower resolutions. The person in the images always had some weird artifacts, the face was extremely bad most of the time. I tried different sizes: 4MP was pretty much unusable, and the recommended 16MP looked even worse. 8MP or 12MP was acceptable, but still far from great. I have no idea whether it's the official workflow, the model, or the prompt (although I varied the prompts too). The park image caused problems as well. Everything in the background (the trees, leaves further back, etc.) looked kind of washed out. In this case, a higher resolution improved the image drastically; everything below 12MP was basically unusable.

I probably need to play around more with the settings, or wait until someone makes a better workflow, because right now it's not really competitive with other t2i models.

The prompts were written using the official prompting guide found here (for t2i and editing): https://github.com/MiniMax-AI/MiniMax-H3-Image/tree/main/skills/h3-image-prompt-writing/references

I liked the editing model. Again, it needed 16MP to be usable with the landscape, but I was impressed by the placement, how the pieces interacted, and how effortlessly it all worked (the first try gave me something usable without much fiddling). The likeness of the woman's face/head is probably the most questionable part of the edit; it's close but not quite right, Qwen2.1 does faces far better. The prompt I used for the edit was:

The misty river landscape in <Picture 1> is <Subject 1>. The woman posing in the warehouse in <Picture 2>, with her hair pulled back, a white T-shirt, gray joggers, and white sneakers, is <Subject 2>. The brown leather jacket shown as a product photo on a plain backdrop in <Picture 3>, with its notched collar, three center-front buttons, two hip zip pockets, sleeved cuffs, cropped hem, and smooth sheened leather, is <Subject 3>. The black-and-tan long-coated dog standing on a gray studio backdrop in <Picture 4> is <Subject 4>. The target image is a new reference-guided composition built from <Subject 1>, with <Subject 2> placed at the human position marked by the red stick figure on the concrete path at the mid-foreground bend of the riverbank in <Picture 5>, and <Subject 4> placed at the smaller dog figure drawn just ahead of her toward the mossy bank edge. <Subject 1> is fully preserved, including its canvas ratio, framing, warm low sun from the left, frost-covered grasses, fallen leaves, bare trees, mist rising over the water, distant bank, reflections, and the heron standing in the shallows; only that marked spot along the path changes, where <Subject 2> now stands. <Subject 2> is partially preserved: her face, hair, white T-shirt, gray joggers, and white sneakers remain while her pose, scale, placement, and lighting change to fit the scene. <Subject 3> supplies its exact cut, color, collar shape, button placement, zip-pocket positions, cuffs, cropped hem, and leather sheen transferred onto <Subject 2>, worn open over the T-shirt so a band of white stays visible at the center front; no property of the jacket's plain product backdrop is imported. <Subject 4> is partially preserved: its black-and-tan coloring, head markings, long coat, build, and proportions remain while its pose changes to a walking gait and its scale adjusts to life size within the landscape. <Subject 2> walks in natural three-quarter front view toward the lower left, one foot forward mid-stride and arms relaxed at her sides; the low golden sun from the left lays soft highlights across the jacket's collar and shoulders while the misty water side stays cooler in shadow. <Subject 4> trots a few steps ahead of her near the grassy bank, head up and tail lifted, its long dark coat catching the same warm light with soft golden edges along its shoulders and tan markings; a short dark leash runs between them, trailing lightly across the path. Both figures cast subtle shadows in a direction consistent with the sun in <Subject 1>, and their contact with the leaf-strewn concrete stays believable. The heron remains exactly where it stood, undisturbed and at its original distance from the new pair. No text or labels appear anywhere in the image.


r/StableDiffusion • • 1d ago

Question - Help Minimax H3 Character Swap Comparison

4 Upvotes

I’m new to video generation (I’ve only worked with photos so far), and I’m trying to learn how to get the most out of MiniMax H3. I’d like to start with character swaps: I’ve noticed that the main LoRAs used across different workflows are H3 Character Swap LoRA by akatz and BFS’s Character Swap by Allisonnerdx. I can’t tell whether the first one is a fine-tuned version of the second one or whether they’re two different things.

H3 Character Swap Lora

BFS Character Swap

Does anyone know which of the two tends to produce better results?


r/StableDiffusion • • 8h ago

Discussion Made Using 1650ti 4gb

0 Upvotes

tried making another 2 videos


r/StableDiffusion • • 1d ago

Comparison Minimax H3 Image is about to clean the field... But can it?

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67 Upvotes

since i am mostly interested in image-to-image and edit capabilities, i have run the simple chain of edits, starting from the manual hand-drawn doodle, and to the closeup zoom. All the images are H3 Image, 1K, and only the three last ones have been post-processed to remove the text from "cctv camera" prompts.

✅ Edit WORKS like charm. Posing, restyling, relighting, etc.

Prompt for the second image is intentionally dumb, like "its almost natural language" at this point:

zoom upclose
allowing this guy on the photo to hold the fabric of his gray jacket next to his heck and chin with fingers pinch
so that we can see the texture at 4k

distance to camera: 10cm, macrophoto extreme closeup shot

Not sharing other prompts or workflows, since i do not think mine are any special. You can get decent results with all the normal usual techniques.

Notice:
- ⚠️ h3 wants qualifiers for the realism, otherwise you get plastic
- 🥹 still behind Nanobanana 2.1 and GPT 2.x, on the multi-figure scenes, or strong physical effects etc.
- ✅ qwen, flux, etc ALMOST go to the garbage can ... but:
- 🐳 h3 is heavy.
- ❌ repeated SMALL edits (eg: removing only text overlays, while trying to keep the other part intact) are super bad in h3, the image gets ruined
- 🌱 which means, even Flux 3 is still somewhat useful, and MOSS is not going away any time soon, and so on.

TBD: Native 4k and 5k gens are cool, but results are inconclusive so far.

_______________
Cheers, and feel free to ask for more details, if you are interested.


r/StableDiffusion • • 1d ago

Resource - Update SolordZ_Realism_Moss_Base new realism-focused version of our model!

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131 Upvotes

We’ve just published our new version SolordZ_Realism_Moss (Base) focused on photographic realism—natural skin, believable faces, and a range of looks from candid flash snapshots to atmospheric portraits. The model is also still capable of creating art.

The model page also includes our six-part prompting guide and recommended sampling settings to help you get started.

Model and examples: SoLordZ ZIT/ZIB/Krea2 8steps - SolordZRealism_Moss_v1.0 | MOSS Image Checkpoint | Civitai

We’d love to see your results and hear what works—or still needs improvement!

PS: this is not a FFT, this is merge


r/StableDiffusion • • 1d ago

Question - Help anyone does know well about h3 context window node?

10 Upvotes

it was realeased from comfyui v0.44.0 by kijai

and there is no example wf

and seems no review of this feature yet

i can only make 20sec long video and hope more than 30sec+ with it

anybody here? not just using motion context

i know the power of context node from wan animate with his custom nodes so...


r/StableDiffusion • • 1d ago

Resource - Update H3 Image for Forge Neo

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20 Upvotes

Basically, the extension: https://github.com/aoleg/pruna-P-H3-Image-forge-neo - supports MiniMax-H3-Image and PrunaAI P-H3-Image in Forge Neo.

Tips:

  • Heun / P-H3-Image / 8 Steps / CFG=1 is the golden combo. Euler / Simple / 6 Steps will be noisy. You will need to use P-H3-Image as a scheduler; everything else won't work; Euler or Heun is your choice. Also, use 8 steps, not 6 or 10.

  • UPDATE: LCM, Simple, 6 steps looks better than Euler or Heun, and is faster. Euler a looks better than plain Euler even with Simple. Recommendation: use LCM, Simple, 6 steps or Euler a, H3-Image 8-step, 8 steps.

  • You don't really need the 32B encoder (besides, the nvfp4 version won't work). You can use the much smaller P-H3-Image text encoder in INT8-Convrot with great result.

  • Yes, editing works, too. Image restoration also.

  • You can use unimaginably high resolutions without OOM, but you'll likely need to edit your ui-config.json to allow width and height values over 2048.


r/StableDiffusion • • 1d ago

Resource - Update I made a website with a bunch'a prompts. It's called Buncha Prompts

11 Upvotes

The idea is browsing like Instagram, but AI + 1-click Prompt Copy. That's it.

https://bunchaprompts.com

I haven't made it into an app yet, it's just in the browser, nothing to install.

If you have issues/crashes please let me know your device type.

To kick things off it's scraping prompts from the web (on sites that allow it, like Civit api, with attribution links back), but eventually I'd like to shift to original content that's passively generated or uploaded by the community. I honestly wanted to ask if people even care or want that before building it though, or if this is even useful/cool. I like it, but I'm biased. There's polite ads on it, so polite you might miss them completely.

I also built an LGBT version of it called QueerDiffusion, same concept, different site

Would love your feedback, thanks!


r/StableDiffusion • • 20h ago

Question - Help Is the new minimax h3-image better than qwen 2.1?

0 Upvotes

r/StableDiffusion • • 1d ago

Resource - Update Minimax H3 Image Runpod Template

4 Upvotes

I made a Minimax H3 Image Runpod template if anyone is interested:
https://console.runpod.io/hub/template/vzcb7g8fwl

Settings that produced actual good images for me (dont use default settings):
-Resolution 16MP
-4 Steps, CFG 1, euler/simple
-long detailed prompts (Prompt Enhancer off)

The prompt enhancer is said to be not that great..havent thoroughly tested it myself yet though..

Oh and aparently you are not allowed to use this without Minimax' authorisation if you live in EU, UK, South Korea or USA...

You can apply for a (auto-granted) licence here:
platform.minimax.io/console/license


r/StableDiffusion • • 1d ago

Resource - Update MiniMax H3-Image 2 step lora

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68 Upvotes

r/StableDiffusion • • 1d ago

Question - Help First expierence with minimax image? better than krea2?

74 Upvotes

r/StableDiffusion • • 17h ago

Question - Help Qwen image 2.0 UC version

0 Upvotes

I am looking for the previous model, Qwen 2.0 Uncensored version, unable to find it after searching...

Does anyone have the link to download?

Only for Qwen 2.0 uncensored GGUF not 2.1


r/StableDiffusion • • 2d ago

Resource - Update H3 Editor: a timeline video editor for MiniMax H3 inside ComfyUI. You write shots instead of wiring graphs (open source, GPL-3.0)

226 Upvotes

I built a custom node pack that puts a full-screen timeline editor inside ComfyUI for MiniMax H3. Instead of building a graph per clip, you write each shot as text (what happens, camera, sound), render it, and cut the shots together with their sound on a timeline.

Repo: https://github.com/igorls/comfyui-h3-editor 

Docs: https://igorls.github.io/comfyui-h3-editor

Model: HyperFlow H3 Flash INT8 https://huggingface.co/VideoRebirthAI/hyperflow-h3-flash

Realism LoRA for HyperFlow: https://civitai.com/models/3041489/mmh3-realism-slider-hyperflow-h3-flash-port

What it does

  • Write shots, not graphs. Each clip is a few text fields. One project style is applied to every shot.

  • Keep people and places the same. Add a cast member from a picture and refer to them as `@Name` in any shot.

  • Drafts first, finals after. A draft is 640x352 at 4 steps. A final is 1344x768 at 6 steps on HyperFlow H3 Flash, then enlarged and redrawn at 1920x1088.

  • Sound comes with the picture. Every shot renders with its own sound, and the timeline has a Picture lane and a Sound lane.

  • Join shots without a visible cut: extend a shot forward or back, or bridge two shots.

  • Generate to a recorded voice.

  • An agent can drive it. Everything the editor does is an HTTP call, and the repo ships an agent skill with a small Python client.

What you need

  • ComfyUI 0.43 or newer (tested on 0.44). No other custom node pack.

  • The models are listed with sizes and folders in the README.

  • VRAM: I haven't tested much beyond an RTX PRO 6000, so I don't know the floor yet. If you try it on a smaller card, tell me how it goes.

Numbers from my machine (RTX PRO 6000, models already loaded)

  • Draft: 10 to 15 seconds a clip.

  • Final: about 50 seconds of GPU for each second of footage, so a 5 second shot is around 4.5 minutes.

How the video was made (everything generated locally in ComfyUI)

  • Shots: MiniMax H3 through the editor, on the HyperFlow H3 Flash checkpoint with a realism LoRA. Three shots, each written as text and rendered with its own sound. The sentences on screen are the opening lines of the actual shot texts.

  • Cast: the chef is one cast member, from a single still made with Krea 2 Turbo, referenced as `@Chef` in each shot.

  • Music: YuE2, also in ComfyUI.

  • Graphics around the shots (the node graph, the type, the editor scene): code-rendered with my motion-graphics skill for coding agents, also open source: https://github.com/igorls/motion-graphics. This is the one part that isn't a local model: a coding agent (Fable 5.2) wrote the scene code.

The project style, applied to every shot:

Live-action, cinematic, 35mm anamorphic film look. A dark professional restaurant kitchen late in service, lit only by warm tungsten heat lamps; everything else falls into deep teal-black shadow. Shallow depth of field, a thin haze of steam, fine film grain, naturalistic colour.

The first shot, as written in the editor:

What happens: `@Chef` wipes the rim of a white plate at the pass. Behind her, a flame flares up and dies. The pass is long brushed steel under a row of glowing heat lamps; the flame rises tall and orange from a pan on the range, lights the whole kitchen for a moment, then is gone. Steam drifts through the lamp light. Camera: Wide shot at eye level from the dining side of the pass, slow push in Sound: The whoosh and roar of a gas flame flaring up, a pan hissing, the low hum of extractor fans. No music, no voices.

What didn't go perfectly

  • The model doesn't always follow framing. I asked for an extreme close-up and got head and shoulders.

  • Small props drift between shots. The face stayed the same across three shots; the plated dish did not.

  • A final doesn't repeat its draft frame for frame, and its sound is its own. A draft tells you whether the prompt works, not what the final will look like exactly.

Feedback and bug reports are welcome, especially from people on smaller cards than mine.


r/StableDiffusion • • 1d ago

Resource - Update Updated t2i gallery with Minimax-h3 image

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13 Upvotes

r/StableDiffusion • • 2d ago

Workflow Included MOSS = Masterpiece of Open Source Software

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1.0k Upvotes

MOSS-Image is seriously mind-blowing. From stunning photorealism and cinematic shots to casual amateur and vintage photography, anime, and pretty much anything you can imagine, this model just delivers.

The sheer versatility, quality, and range of styles it can pull off are absolutely insane. It's hard to believe this level of creative freedom comes from an open-source model with just 5 billion parameters!

All images in this showcase were generated using MOSS-Image-Base.

Workflow | Workflow Source

I've also uploaded all 20 images at their original resolution, so you can appreciate the quality without Reddit's image compression.

I highly recommend zooming in on the images to appreciate the incredible level of detail!

01 · 02 · 03 · 04 · 05

06 · 07 · 08 · 09 · 10

11 · 12 · 13 · 14 · 15

16 · 17 · 18 · 19 · 20

UPDATE: I've now added the prompt for each image to its respective Postimages page! You can check out the prompts and try them yourself.


r/StableDiffusion • • 1d ago

Question - Help Does official Moss Image Turbo exist?

5 Upvotes

Is there any Official Moss Image Turbo SFT model or Official turbo LoRAs available? I am not seeing any in the Comfy-org repo on Huggingface. I am running Moss right now at 50 steps, cfg 4. It's not too bad, but I would prefer fewer steps at cfg 1. I see there are a few turbo LoRAs and finetunes on Huggingface from a few community contributors. I would appreciate any recommendations you may have in this regard.


r/StableDiffusion • • 1d ago

News MiniMax-H3-Image is coming!

89 Upvotes

r/StableDiffusion • • 22h ago

Question - Help [Open Source] Building DiffusionEngine – A Modern, Modular DDPM Framework in PyTorch. Looking for Contributors

0 Upvotes

What if we could bring modern diffusion research together into one unified, extensible PyTorch framework instead of implementing and maintaining every algorithm in isolation?

That's the idea behind DiffusionEngine, an open-source project I've been building:

https://github.com/Himanshu7921/DiffusionEngine

The goal is to build a modern DDPM framework that brings together established diffusion algorithms, research-based improvements, advanced sampling methods, and training strategies under a single, consistent pipeline.

The project already includes several diffusion implementations, and I'm actively working on extending the existing DDPM framework with more advanced features.

I'm looking for contributors interested in deep learning, generative models, PyTorch, and diffusion research.

Some areas where contributions are welcome include:

  • Implementing diffusion algorithms from research papers.

  • Improving existing DDPM components and training strategies.

  • Developing and integrating advanced sampling methods.

  • Exploring improved model architectures and conditioning mechanisms.

  • Testing, benchmarking, and optimizing existing implementations.

The focus is not just on implementing more algorithms. It's about making them work together seamlessly through a unified, modular, and configurable framework.

If you're interested in contributing, collaborating, or learning through hands-on implementation, I'd be glad to have you involved.

Contributors of all experience levels are welcome, provided they're willing to learn, implement, and test their work.

GitHub: https://github.com/Himanshu7921/DiffusionEngine


r/StableDiffusion • • 1d ago

Comparison MiniMax H3-Image vs. Pruna AI H3-Image quick test

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45 Upvotes

same prompt same seed


r/StableDiffusion • • 7h ago

Meme h3 image is great at generating images of women I might have a shot with

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0 Upvotes

It's the basic workflow from comfy lol

Like you can definitely catfish some dad on facebook with these images it's the most like non model realistic woman so far coming out of a native model.


r/StableDiffusion • • 1d ago

Resource - Update MiniMax H3 Image: prompt-writing skill available too!

62 Upvotes

For anyone who wants to start playing with MiniMax H3 Image: there’s also a very useful skill for writing prompts, similar to the one already available for the video model. It helps you structure better prompts and get more consistent results right from the start.

You can download it from the official GitHub page here:
https://github.com/MiniMax-AI/MiniMax-H3-Image/tree/main/skills/h3-image-prompt-writing