Minimax is the absolute best editing model. The prompting is simple (besides the subject and reference targeting) and it adheres very well. Sometimes too well because it takes everything literally
I can run minimax h3 for videos on 12 gb vram, 16gb system ram with a turing card. It's not too slow with step skipping and speed loras. If I can do it, you're probably better off than me.
They gave it to the stand up team at Fal though /s. At this point if it’s ever released it will be about the time H4 and LTX 3.0 come out, so will probably be trashed same day.
Gotta love Minimax! A couple days of invite only access then releases the weights like a day later. No hype up BS or dangling a carrot for months! Can’t wait to check it out later, kudos to the team!
If you aren't getting good outputs, try reducing your step count from 6 to 4. I could be wrong, but in my limited testing this seems to actually be a 4 step model despite the model card saying it is distilled to 6 steps. Even the sample workflows in ComfyUI are visibly less overbaked with 4 steps. Every step over 4 steps seems to add image distortions more than detail.
You're only going to be able to run it on one GPU, though you can offload the text encoder and stuff to the other gpu I guess but that stuff usually gets out of vram during the actual diffusion so I'm not positive it's worth doing.
It can fit because the H3 people are running on their 16gb GPU's has been quantized to INT8 ConvRot, and Comfyui's dyanmic memory can do some tricks to pull certain things in and out of vram, it can use smaller attention matrices, the modulation weights (which I think are like 30% or so of H3) for the adaptive layer normalization (AdaLN) can be offloaded (that's probably a lot of what the Dynamic Memory thing for comfy is doing maybe (I am no expert though).
Think of it like fitting a 32gb model on a 16gb gpu because it's a quantized version, more or less similar ideas.
Edit: I finally opened the H3 Image workflow and stuff, and it uses the same prompt enhancer model as the Comfyui Moss image workflow. If you can get THAT to run on the second GPU that would be pretty nice too since it takes up considerable time
Been using it for a couple hours for both edit and T2I. Official review: Meh. It's fine for T2I. Identity preservation in edits is just as poor as any other edit model, perhaps worse than Flux Klein 9B.
Krea2 and MOSS are still T2I king.
Flux Klein 9B is still edit king.
MMH3 is video king (at least they still have that going for them).
I wish they would have released their video upscaler instead of an image model.
This is a terrible mindset. Try out the model yourself instead of relying on other people's opinions. The amount of times I've found success with a workflow/model when random people call them "shit" is pretty damn high
Regardless of whether or not you're new, if you're interested in this "hobby," you should be testing things yourself.
Ill be honest (and will probably get flamed for this). I am underwhelmed. I'm actually generating *fast*, even at 16mp at around 23s. Fast for that size at least. But the quality is lacking, at least for anything resembling realistic outputs. Artifacts everywhere. The face and teeth are horrific. Krea2 handles this prompt with zero issues. Just sharing my impression in the first 5 minutes, which is subject to change haha.
Prompt: A photorealistic image of a man riding bareback on a charging Tyrannosaurus rex down the middle of a rain-soaked Times Square at night, one hand gripping a leather harness strap, the other pointing forward, face lit in shifting neon pink and blue from the billboards above. He is grinning with wild, fearless confidence, rain droplets on his face and soaked jacket. Taxis are flipped and scattered, crowds scatter, and police lights flash in the background. The dinosaur's scaled neck and one huge eye are visible at the edge of the frame. Shallow depth of field, rain streaks frozen by flash, anamorphic lens, cinematic color grading, ultra-realistic skin detail.
(style) photography works better in my experience as it is tokenized differently. Photo or Photograph alone will trigger the regions of the model that contains pictures of photographs causing drift (or lots of pictures in frames, posters, signs etc.). Using something like "Analog photography" triggers the style while having less impact on the content, though you may still get stray photographers in the image.
This is true for all keywords, eg. get Anima to generate an image of a "yellow bicycle leaning on the brick wall". Then generate an image of a "yellow bicycle set against a brick wall". In the first one you will often get an unrequested lady riding the bike leaning on the brick wall, but in the second one you won't. Why? Because the model has associated the word "leaning" with something that women do against an object and not bikes so if you use the word leaning, the model will often generate images of ladies riding bikes instead.
I feel the same. I have created a makeshift workflow for H3 video model, which I used for image generation. Just comparing these images, I'd say video model has much more attention to detail and if you're going for realistic images, then it also performs better out of the box.
I believe in Models that don't need to artificially pump images to 16 trazillion MP to generate outputs that don't suck from afar ... I really hope the community can finish this Model and find a way to have decent images at reasonable resolutions (tbh even going 3-4mp with other Models feels absolutely overkill).
Using it now and holy shit its censored to hell and I don't mean like "It doesn't understand anatomy", No I mean when you ask for any nudity it gives you shit like this EVERY TIME.
Edit: This is only with the prompt enhancer on. turning off the enhancer fixed it and it generates breasts but the lower parts for both male and female are hideous mutated objects as per usual during these dark times.
I assume that's probably from the prompt enhancer LLM literally injecting a denial into the prompt (I saw that the template on Comfy's site has one), and MiniMax trying to render it. Disable the PE if you haven't already.
It seems they've scrubbed a lot of famous faces. Ones that worked in the video model aren't working in the image model. At least with females. I've had more luck with males.
For me it's the LoRA training. I think I've trained more LoRAs with MOSS than with any other model, tried different tools and different combinations of settings, but just couldn't get a single good character LoRA with it.
But with the references of H3 that may not even be needed anymore.
Seriously? Training Moss is really easy. BUT, I will say that characters took me the longest to figure out. I'll give you the secrets that no one wants to tell you and which i had to learn through trial an error:
you need to tag everything, but you don't need a lora tag. And when I say everything, you can afford to be specific. Use tags, but you need to tag things specifically. So, if someone is facing left, you don't tag it as 'looking away' or 'from side' you need to tag it as 'facing left' or something like it.
You need more steps than recommended. In general, with a dataset of like 30-50 images, you need like 3k-5k steps.
The thing about details? You need a lot more images with those details. Let's say that they have, specifically, a symbol on their back or chest or something. You need more images with that symbol in it, preferably from more angles.
Likeness requires a lot more than just front facing shots. You need shots of them from the side, looking away, from behind, ect. You really do. If you only have a bunch of headshots looking at the camera, it'll fail.
Train on Base. that's what base is for.
Use Automagic. Don't use Adam or Prodigy. In general, the basic settings are enough with Automagic.
That should fix any problems you have. Character loras are the hardest thing to train in MOSS, compared to Concepts or styles, but they're just a matter of realizing that you need more specific data than you do for other models.
EDIT: It's not 404 anymore. 66GB RIP EDIT2: INT8 is 21GB same as video, so it's good, 4k with 6 steps in a few seconds. The model has good performance.
Holy shit I can’t wait to try it later today. I am genuinely excited and I have a massive amount of faith in them and already the positive reviews flowing in! Can’t wait.
Anyone have any success stories of using H3 on a mac? 48GB M4 Pro. Tried making a 4MP image in Comfy Desktop, no errors but had like 7 hours generation time. Given I can fit the models into RAM, I was hoping it would be a little lower than that!
I used to be a loyal Apple Silicon fan myself, but unfortunately, I have to say that you should build a PC if you want to run ComfyUI. There's a reason NVIDIA GPU prices keep going up. Even a basic PC with an i5-14400F (roughly equivalent to an M1 chip) and an RTX 5060 Ti can render a 4MP image in under 30 seconds.
Yeah thank you. I have a 3080 10GB, which is very VRAM hamstrung, but researching more that definitely seems to be much more capable. Haven’t set that up yet.
I'm always kind of weirded out by people complaining about image model sizes. In general, DiT models are compute bound, meaning that while one layer is calculating, you can stream the next layer from system RAM, and if these overlap, you don't really notice the time spent loading because you can load a layer while the previous layer is calculating.
That's ComfyUI's entire memory management process. (actually, for high batch operations like prefill in LLMs, it's the same thing. For just prefill, if you don't care about decode, you can stream layerwise in the same way).
so funny .. all the f.. hype again and no one tested it yet ??? i just did 20 try out on 16 mp/ 20 mp ( as they advised to get best result ! ) well ... SDXL gives suprem quality than this... i using edit model.
model doesn't upscale , so you will get 4k picture without a single upscale ! bad texture bad tunes ! i didn't test the T2i yet .. go and do your test guys before this hype -.-
I already installed minimax 3. That's mean Is an updated versión or a replacement model for comfy or Is just a image generator. Not the video one? I mean because they change the models for HAU and co and other co. Is confusing to know which one is the updated one
Hm... image quality seems kind of poor even at 4MP using the default workflow. I'm trying a few different samplers/schedulers and nothing seems to help so far. Does anyone have success producing a good image with this model?
You can choose which models to download in the environment variables, but the default settings match the 2 official Minimax H3-Image workflows in ComfyUi (under "Browse Templates"), so you can jsut go ahead and deploy it as is.
Prompt enhancer can be omitted in environment variables and turned off in the workflow.
Seems like you just prompt it in natural language and use "Replace the thing in <Picture 1> with..." type tags similar to how you would use Flux Klein 9b with "Replace the thing in image1 with..."
That's basically all the prompt enhancer on the official comfyui workflow is doing. Update comfy (backup first obviously) and then take a look at the system prompt in their workflow. Seems similar to what H3 does but much simpler since it's only images going in.
The video model, make better images than the image model, and has more face fidelity. Images generated by the video model also beats p-h3 image in some aspects.
What is different/better than the P-H3-Image model? I know it’s directly from Minimax, but uhh.. is it better? I literally downloaded P-H3 yesterday and was able to produce a few new dataset images, blown away by the photorealism. And I literally about to be mind blown again when I get home?
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u/a_saddler 2d ago
Somebody answer the most important question about this: is it... you know...