CivArchive

    Minimax H3 INT8/INT4 Convrot

    FL2VA - first last (frame) to video / audio
    REF2VA - ref_images / ref_videos / ref_video_audios / ref_audios: up to 9 reference images, 3 reference videos (each may carry its own paired soundtrack), and 3 standalone reference audio clips

    Both models can generate t2v (Text to video), i2v (Image to video), v2v (Video to Video), a2v (Audio to video), and multiple references (image/video/audio). But were further fine-tuned/trained for higher-quality outputs for the intended use.

    14.81 GB INT4BQ Balanced-Quality leaning: int8_ratio 0.41 by count, 0.47 by params; int8mm_ratio 0.58

    17.27 GB INT4Q Quality: int8_ratio 0.73 by count, 0.75 by params; int8mm_ratio 0.27

    Description

    Reference to video audio Pruned version

    FAQ

    Comments (103)

    sadsshitAug 3, 2026· 7 reactions
    CivitAI

    waiting for the nsfw one

    Unbane_15146Aug 3, 2026· 1 reaction

    It's uncensored, but it takes a while to make the videos, although it works well with low VRAM on lightweight models; we need a Lora Turbo.

    xDegenerateAug 3, 2026· 12 reactions
    CivitAI

    And so it begins lol.

    Seii1Aug 3, 2026· 2 reactions
    CivitAI

    Can this do nsfw?

    tsolful
    Author
    Aug 3, 2026· 5 reactions

    Yes for I2V (IDK about T2V) it is quite uncensored out of the box

    sadsshitAug 3, 2026

    @tsolful what? u sure

    tsolful
    Author
    Aug 3, 2026· 2 reactions

    @sadsshit Yea look at the two in the gallery

    Seii1Aug 3, 2026· 1 reaction

    @tsolful its definitely has censor in it, i tried img to video, it make pussy looks weird, idk how in the galery the make it looks good

    sadsshitAug 3, 2026

    @Seii1 yeah u need to be descreptive of the thing he does have to guess when he guess something he does it shitty but if tell him this is like this and this this way it make a wonderful work ask gemini for help and tell him what u doing he tought me it (i still too lazy to do it right but)

    xDegenerateAug 3, 2026· 3 reactions
    CivitAI

    Did some testing, it can do breast slapping, it does basic jiggle (breast and ass), have not tried penetrations yet, but so far it understands the very basics, but it failed at breast sucking.

    AginoAug 3, 2026

    Yes, it's everything you say here I have been using since yesterday

    cbin1282292917Aug 3, 2026· 9 reactions
    CivitAI

    This model is very good, it recognizes sexual organs

    JapamelonAug 3, 2026

    私のところではあまり良くないですね…画像に映っていればうまくいくのかな。

    AI_2_addictedAug 3, 2026· 2 reactions

    Yes! This model—with an 8-step LoRA, realism-enhancing LoRAs, and NSFW LoRAs—is going to be insanely amazing!!

    reetakAug 3, 2026· 2 reactions
    CivitAI

    Just from the few i2v gens I have done, it seems very capable.

    the_remorra959Aug 3, 2026· 1 reaction
    CivitAI

    any chance to get this on 16GB VRAM?

    tsolful
    Author
    Aug 3, 2026· 3 reactions

    Works on rtx 3060 12gb +32gb ram

    the_remorra959Aug 3, 2026

    @tsolful nice. whats the performance?

    tsolful
    Author
    Aug 3, 2026

    @the_remorra959 for 5seconds 480p 15minutes on my rtx 3060 12gb +32gb ram, 5 minutes 1 megapixel 7seconds runpod 5090 128gb ram

    bnzarev821Aug 3, 2026· 1 reaction

    Works fine even on my rtx 3060 12gb +16gb RAM. You only need a fast NVMe SSD and to manually set a big (150-200GB) virtual memory file (pagefile.sys). My test here

    Gamert45Aug 3, 2026

    @tsolful can u share the worflow and teh GGUF's what u have used in it

    tsolful
    Author
    Aug 3, 2026

    @Gamert45 I currently use the INT8 model with the default workflow template in comfyui https://comfy.org/workflows/a781503cf508-a781503cf508/, Just uploaded int4 mixed versions for lower memory size at the cost of slight quality degradation

    RavirKunAug 3, 2026

    @bnzarev821 can u share the workflow? we have same rig

    yuduz367Aug 3, 2026· 2 reactions
    CivitAI

    YES YESSSS

    sekaiwlc07860Aug 3, 2026· 2 reactions
    CivitAI

    Can 4090 + 48RAM run this model?Thanks

    tsolful
    Author
    Aug 3, 2026· 3 reactions

    100% the model is working on rtx 3060 12gb +32gb ram although some of the weights are being streamed from ssd

    sekaiwlc07860Aug 3, 2026

    @tsolful Thanks a lot! By the way, how much is the generation time/ per 1 output?

    tsolful
    Author
    Aug 3, 2026· 1 reaction

    @sekaiwlc07860 for 5seconds 480p 15minutes on my rig, 5 minutes 1 megapixel 7seconds runpod 5090 128gb ram

    sadsshitAug 3, 2026

    as a matter of fact im running it on a rtx 3060 12gb 32 ram

    lijia_tuAug 3, 2026

    @tsolful 5060ti16g+32g有压力吗

    tsolful
    Author
    Aug 3, 2026

    @lijia_tu Yes some of the model is being streamed from SSD. Currently working on INT4Mixed models, which will lower the size of the model but also decrease the quality a bit

    JapamelonAug 3, 2026· 1 reaction
    CivitAI

    NSFWではLoRAが必要ですよね?

    性器についての理解はWan同様に少し乏しいと思います。

    tsolful
    Author
    Aug 3, 2026· 2 reactions

    Yeah, genitalia is not as good without a nsfw lora if it is not visible in the Image in I2V

    JapamelonAug 3, 2026· 1 reaction

    ありがとう!同じ見解でよかったよ。これから有志で多くの人がLoRAを開発してくれると思います!待ちましょう。

    hboxgames132Aug 3, 2026

    @Japamelon 作ったらお互い配布しましょう!!

    ctcf6Aug 4, 2026

    @tsolful do you know if a vj and pen lora can be made with just images?

    lolmao500Aug 3, 2026· 12 reactions
    CivitAI

    LTX2.3 has some serious competition...

    AI_2_addictedAug 3, 2026· 12 reactions

    A competitor? The Minimax H3 simply destroys the LTX 2.3 in every aspect (general anatomy, complex movements, visual consistency, physics, sound), plus it's omni... Once we get 8-stage LoRAs and others like enhanced realism LoRAs and NSFW LoRAs, it's going to be absolutely fantastic!

    ArttTakuAug 3, 2026· 4 reactions

    More than that, I'd say... I was never fully sold on LTX2.3, but now with H3, I might forget about it entirely. I'll just be waiting for community support and refinements and then make a decision.

    HugMeIntoFaceAug 3, 2026

    Does this mean I should propably say goodbye to Wan 2.2? Or how is it? (I know Wan does not have sound)

    ArttTakuAug 3, 2026· 3 reactions

    @HugMeIntoFace Not yet, for sure.... give this a month or so so the community can do merges and loras, and then re-evluate.. I love Wan2.2, but yeah, the lack of sound has been its main drawback this entire time.

    AI_2_addictedAug 3, 2026· 1 reaction

    @HugMeIntoFace Absolutely! You can go ahead and delete Wan and LTX right now! Just look at what Minimax H3 does without any tweaking (no 8-step LoRAs, no concept/NSFW LoRAs, and no custom workflows)—the results are already WAY BETTER than LTX and Wan combined! Just imagine what it’ll be like with LoRAs and custom workflows... It’s going to be FANTASTIC! :D

    qingyantrong4932325555Aug 3, 2026· 1 reaction

    @HugMeIntoFace Go to your LTX and WAN folders and just fucking delete. You won't go back.

    @ArttTaku A month!? If you can't tell within the first video you make... LOL

    SilmasAug 3, 2026

    @AI_2_addicted until now it is just slower, and I need around 50GB Ram to render some vids at 20 steps... lets hope the best. :)

    HugMeIntoFaceAug 3, 2026· 1 reaction

    @qingyantrong4932325555 @AI_2_addicted Guys I am too old to do impulsive f***s that I could pity later. But I love your enthusiastic aproach. I will look forward what MaxH3 could deriver, in the mean time I will keep the Wan 2.2 warm, it would be heartbreaking moment, if I lost it. I hope that this NEW stuff can continue what I already learn. (I have high demand for consistency for characters and I almost perfected it in Wan 2.2, anything else would be a downgrade)

    N0n4m3Aug 3, 2026· 2 reactions
    CivitAI

    @tsolful So what is exactly different between FL2VA & REF2VA and one available via comfy download (REF2VA)?

    What finetuned means for these download models.

    And what exactly these are, am I correctly assuming that these are:

    FL2VA - first last (frame) to video / audio ?

    REF2VA - reference video / audio to video / audio ?

    tsolful
    Author
    Aug 3, 2026

    FL2VA - first last (frame) to video / audio
    REF2VA - ref_images / ref_videos / ref_video_audios / ref_audios: up to 9 reference images, 3 reference videos (each may carry its own paired soundtrack), and 3 standalone reference audio clips

    Both models are able to generate t2v, i2v, v2v, a2v and multiple reference (image/video/audio). But were Finetuned/Trained further for higher quality outputs on the intended Use.

    N0n4m3Aug 3, 2026

    @tsolful What does: "But were Finetuned/Trained further for higher quality outputs on the intended Use" mean?

    File SHA tells me that files that You uploaded are EXACTLY the same as ones in comfyUi.

    So You DL files from comfy and shared them? Is that correct?

    tsolful
    Author
    Aug 3, 2026· 1 reaction

    @N0n4m3 My bad i was confused I thought you were asking the differences on the models, Yes the int8_pruned models were gathered from comfys huggingface as there was no point converting them myself, Just converted and uploaded int4 mixed pruned versions also

    civitai7_Aug 3, 2026· 2 reactions

    @tsolful put all of the acronyms in the description please. FL2VA REF2VA you explained here.. but R2VA? That's different than REF2VA? What's VR2VA? Virtual Reality to Video & Audio?

    sekaiwlc07860Aug 3, 2026

    If I only have 1 image, can I use FL2VA to generate?

    tsolful
    Author
    Aug 3, 2026

    @sekaiwlc07860 Yes

    N0n4m3Aug 3, 2026· 4 reactions
    CivitAI

    Done some tests and... Wan can 34t $hiet and LTX is nowhere near this one.

    Even without LORAs it do produce nice results. Gens are hit and miss but that's expected.

    Great model and now my fav.

    rawrrawrrawr3x379Aug 3, 2026· 16 reactions
    CivitAI

    RIP LTX

    sekaiwlc07860Aug 3, 2026· 2 reactions
    CivitAI

    HELP!!!Can someone solve this problem?

    Node ID: 127 - Node Type: SamplerCustomAdvanced - Exception Type: RuntimeError - Exception Message: RuntimeError: The size of tensor a (75480) must match the size of tensor b (1824768) at non-singleton dimension 2

    RuntimeError: The size of tensor a (75480) must match the size of tensor b (1824768) at non-singleton dimension 2

    [INFO] Prompt executed in 81.55 seconds

    [MultiGPU_Memory_Monitor] CPU usage (97.8%) exceeds threshold (85.0%)

    [MultiGPU_Memory_Management] Triggering PromptExecutor cache reset. Reason: cpu_threshold_exceeded

    tsolful
    Author
    Aug 3, 2026

    Latent / Image Dimensions Mismatch : Minimax (and similar video models) requires image sizes/resolutions and frame counts to be exact multiples of specific chunk sizes 32 for minimax resolution, 24*(Number of seconds you want)+1

    Conditioning / Text Encoder Mismatch: Make sure on load clip minimax is selected

    Latent Input Connected to Wrong Node: Ensure the latent_image input on SamplerCustomAdvanced is receiving a valid latent

    Which workflow are you using, id reccommend trying the default comfyui template in templates or here https://comfy.org/workflows/comfyui/ should be at the top

    sekaiwlc07860Aug 3, 2026

    @tsolful I use the minimaxH3INT8_fl2vaINT8Pruned model, and only 1 input image. Am I use the wrong model?

    tsolful
    Author
    Aug 3, 2026

    @sekaiwlc07860 No it is intended for I2V with optional last frame input, use the image to video workflow in the comfyui templates

    sekaiwlc07860Aug 3, 2026

    If I choose the model, and only have 1 image connect first frame(no last_frame image),can it work? or I need download the REF2VA MODEL

    sekaiwlc07860Aug 3, 2026

    I use the comfyui template workflow,But already the same error:


    [ERROR] !!! Exception during processing !!! The size of tensor a (59940) must match the size of tensor b (1451808) at non-singleton dimension 2

    [ERROR] Traceback (most recent call last):

    File "C:\ComfyUI_windows_portable\ComfyUI\execution.py", line 545, in execute

    output_data, output_ui, has_subgraph, has_pending_tasks = await get_output_data(prompt_id, unique_id, obj, input_data_all, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb, v3_data=v3_data)

    File "C:\ComfyUI_windows_portable\ComfyUI\comfy\model_sampling.py", line 97, in noise_scaling

    return sigma (s noise) + (1.0 - sigma) * latent_image

    ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    RuntimeError: The size of tensor a (59940) must match the size of tensor b (1451808) at non-singleton dimension 2

    sekaiwlc07860Aug 3, 2026

    I solve the problem,ComfyUI_smZNodes or ComfyUI-TiledDiffusion have some trouble with it.

    815168179255Aug 3, 2026

    @sekaiwlc07860 I ran into the same problem; how did you solve it? Thanks.

    ArttTakuAug 3, 2026· 3 reactions
    CivitAI

    The samples already look great.. hope someone does an MXFP8 conversion at some point.

    MrFlexAug 3, 2026

    why do you want mxfp8 when int8 convrot is better quality and gives you the same speed?

    jervis314Aug 3, 2026

    @MrFlex If you have a 50 series card mxfp8 is faster than int8 convrot

    MrFlexAug 3, 2026

    @jervis314 i have a 50 series card and its not faster, and way worse quality, nvfp4 is faster but really bad quality

    jervis314Aug 3, 2026

    @MrFlex I have a 5090 and mxfp8 was definitely faster than int8 when I tested it with LTX and Krea 2. There was no difference in quality.

    zjc1772665101270Aug 3, 2026· 1 reaction
    CivitAI

    这里的int4到底可用吗?会不会质量稀碎?

    tsolful
    Author
    Aug 3, 2026

    Works on my 3060 12gb + 32gb ram using the native Load Diffusion Model node. ConvRot INT4 Layers mixed with INT8 Layers quantization to lower model size while maintaining quality over the speed benefit of INT4 as it results in poor quality.

    RakibAug 3, 2026· 12 reactions
    CivitAI

    I hope 4/8 step turbo lora realese soon

    herkus_baronas631Aug 3, 2026· 1 reaction
    CivitAI

    INT4BQ Balanced-Quality - what is it? Its faster or what? How about quality?

    tsolful
    Author
    Aug 3, 2026

    ConvRot INT4 Layers mixed with INT8 Layers quantization to lower model size while maintaining quality over the speed benefit of INT4 as it results in poor quality.

    dan828Aug 3, 2026· 12 reactions
    CivitAI

    You will live to see man made horrors beyond your comprehension.

    ebenezAug 4, 2026· 1 reaction

    Lets hope so...

    RisingVAug 3, 2026· 3 reactions
    CivitAI

    So I guess I need to install comfy now?

    tsolful
    Author
    Aug 3, 2026· 1 reaction

    Yup

    JuliusKaiserAug 3, 2026
    CivitAI

    Has anyone else encountered the following error in ComfyUI?
    # ComfyUI Error Report ## Error Details - Node ID: 128 - Node Type: CLIPLoader - Exception Type: AttributeError - Exception Message: AttributeError: 'NoneType' object has no attribute 'Params'

    Appears when trying to load the text_encoder node and the main model node too.
    I'm using the official workflow and the most recent version of ComfyUI.

    straytzenscribeAug 3, 2026· 10 reactions
    CivitAI

    LORAS for this model...IMMEDIATELY!

    "light", UNCENSORED since base, easy use in confy, and i can make 768X768 (maybe higher)... with 8GB VRAM...nothing more to say except... i'm satisfied.

    SamohtAug 3, 2026

    4060 8gb run ?

    BinaryBottleBakeAug 3, 2026

    For which one of these 4 models are you referencing?

    straytzenscribeAug 4, 2026

    @BinaryBottleBake REF2VA INT8 pruned.

    straytzenscribeAug 4, 2026

    @Samoht yea

    RavirKunAug 3, 2026· 9 reactions
    CivitAI

    finally managed to run this model on my 3060 12gb and 16gb ram.. all you need is set pagefile.sys to at least 200gb+

    generating 10 second takes 30 min at 0.4 megapixel. better than nothing lol

    edit: use sage att + easy cache, now it's 60% faster

    mrweazAug 3, 2026

    Strange, i use a 3060 12GB card and my gens were alot faster using the default workflow provided by comfy. I have since reworked it to use EasyCache and Sage and its faster, but 30 mins for a 10 second gen on a 3060 doesn't sound right.

    I was generating at 0.7MP 16:9 Widescreen FirstFrame with default workflow at around 8-10 mins.

    fronyaxAug 4, 2026

    Are you using Int8/int4 or FP8?? An RTX 3060 12GB shouldn't take 30 minutes to generate a 0.4 MP image 10 seconds, int8.

    Are you using atleast CUDA 13.0 (cu130) in your ComfyUI? Also, is the Comfy backend CUDA or Triton enabled , (disabled = false)? you can see Comfy backend info at the comfyui startup in your terminal.

    If so, you should be getting the INT8/INT4 speedup. A 30 minute generation time on 12GB vram suggests that the CUDA or Triton backend isn't enabled (disabled = true), so the optimized kernels aren't being used.

    BonerSoupAug 4, 2026· 5 reactions
    CivitAI

    Very impressive model! the prompt and camera adherence is remarkable. Only thing that's missing is some proper NSFW loras.

    GFrostAug 4, 2026

    Indeed. I dont think i want to return to LTX now. I have so much fun playing with this one.

    delta45424155Aug 4, 2026· 5 reactions
    CivitAI

    I'm gonna have to pull my rtx 6000pro from my llm box for this when porn lora are fleshed out

    GFrostAug 4, 2026

    Goonatron 6000 Pro =)

    dxjaymzAug 4, 2026

    It actually can do porn without any loras

    amduxrAug 4, 2026
    CivitAI

    Waiting for mxfp8 safetensors version as I often find it fastest on my low RTX4060 8GB VRAM.

    stellarfantasy1788495Aug 4, 2026· 13 reactions
    CivitAI

    This is the model that we all have been waiting for. IMO, This + kREA 2 combo for I2V is going to be hard to top for foreseeable future.

    MalekthaAug 4, 2026· 8 reactions
    CivitAI

    The REF2VA has amazing image edit capabilities. just set frame lenght to 5 and select the best frame out of the results, works insanely fast even at large resolutions xD

    SawadakoAug 4, 2026· 5 reactions
    CivitAI

    MINIMAX H3 + KREA 2 MIGHT BE THE BEST AI MODEL YET TO GET EXACTLY WHAT U WANT

    YoxhachiAug 4, 2026· 5 reactions
    CivitAI

    So good, MiniMax-H3 wipes the floor with LTX2.3

    3mmuAug 4, 2026

    I have deleted all models of LTX2.3 from my pc

    maniocpAug 4, 2026
    CivitAI

    Do I need the text encoder and vae you put up to run the REF2VA-INT8 model?

    jth3gravedigger625Aug 4, 2026
    CivitAI

    We have one of the greatest achievement and progress in AI videography and the first thing people make are weird adult videos. I love it!!! :D

    AIai88Aug 4, 2026· 4 reactions
    CivitAI

    I removed all LTX 2.3 models and switched to MiniMax-H3

    zczcgAug 4, 2026
    CivitAI

    Wait for the lighten lora to decrease the step.
    Now the step=20 need 4min to generate and the GPU temp is up to 77, and hot spot=92

    Checkpoint
    MiniMax H3

    Details

    Downloads
    859
    Platform
    CivitAI
    Platform Status
    Available
    Created
    8/3/2026
    Updated
    8/5/2026
    Deleted
    -

    Files

    minimaxH3INT8INT4_ref2vaINT8Pruned.safetensors