CivArchive
    Sulphur 2 Base - Dev
    NSFW

    Sulphur 2 Base is an uncensored, community-built video generation model on top of LTX 2.3. It runs text-to-video and image-to-video natively and supports every other LTX 2.3 format, with an optional prompt enhancer and distill LoRA in the same release.

    Originally released by SulphurAI on Hugging Face. All credit for the model goes to the SulphurAI team and contributors below. Civitai is hosting a mirror so creators can run it on-site - please head to the original repo for weights, updates, and to support the project directly.

    Built by

    Native t2v and i2v on LTX 2.3

    Sulphur 2 inherits the LTX 2.3 pipeline end to end, so anything an LTX 2.3 workflow can do (t2v, i2v, the rest of the 2.3 formats) works here without extra glue. No converter nodes, no sidecar checkpoints.

    Versions on Civitai

    • Dev - fp8mixed build for local runs that need VRAM headroom

    • Distilled - the included distill LoRA, ideal as the recommended starting point

    Pair the Dev version with the Distilled LoRA for the lightest setup. Existing workflows still reference sulphur_final. Use the LoRA or the full model, never both at the same time. The HF release also ships a bf16 build, which is not currently mirrored on Civitai.

    Built-in prompt enhancer

    A multimodal prompt enhancer ships with the model and is designed to drop straight into LM Studio:

    1. Open your LM Studio model folder.

    2. Create Sulphur/promptenhancer/.

    3. Drop the .gguf and mmproj files inside.

    LM Studio will pick it up on next launch. No system prompt is required, send the text (and an optional image) and it returns an enhanced prompt.

    Uncensored by design

    Sulphur 2 is intentionally unfiltered for adult and creative work. Generations on Civitai still respect the site's content rules.

    Description

    FAQ

    Comments (28)

    ____NULL____May 7, 2026
    CivitAI

    will we be able to use it on the site?
    the option at the bottom of the page show green for "generation services allowed"
    very interested if they put up a create option for it

    tenstripMay 7, 2026

    Only reason I see them for adding it. Funny too because unless I got contacted by them with assurances I'll never allow generation for anything I upload since they have a habit of randomly banning things for loose nudify violations. Meanwhile they leave all the Flux Klein straight nudify tools uploaded and readily available.

    OhNoMyChickensMay 7, 2026

    @tenstrip Don't give them any ideas. Last time I saw someone mention this it only led to the removal of the authors Lora AND a competing one, which meant they both lost. And the rest of us too. They're tools and should be treated as such.

    If Justin was serious about opening the door slightly to a more spicy CivitAI now that Red is here, this is their chance.

    nerfmeMay 11, 2026

    Sulphur 2 Distilled is up for use, I just made a couple of vids. Came out better than the base for sure. And absolutely better than LTX 2.3 . I will have to grab the ggufs for safekeeping.

    FusionCowMay 7, 2026· 64 reactions
    CivitAI

    Hey, this is the maker of sulphur, could you provide a link to the huggingface in the description? it has things like a prompt enhancer that'd be useful

    https://huggingface.co/SulphurAI/Sulphur-2-base

    firemanbrakeneckMay 7, 2026· 4 reactions

    @FusionCow Pardon me, but I don't understand - Why is this even here, under "CivitaiOfficial"? You've posted the full checkpoint to your civ profile, and all the variants to hf 4 days ago. With actual quality generation samples, not some random nonsense a throwaway would attach to a model they'd plagiarised.

    From your comment, I presume you were not contacted beforehand to ask your permission. Is civ now intent on taking not only credit for community published checkpoints, but the associated revenue from generation usage (lest we forget, 25% creator tip most of which goes to the base + direct tipping)?
    The video model creator community which, if anyone needs a reminder, it has not fought to keep around and even actively taken action against in the past?

    And why is dev set to generation only? I can perhaps understand wanting to save some bandwidth on a heavy model; However, a layman might be led to believe this variant is one of the cloud service only models (flux pro type deal) when nothing could be farther from the truth.

    I am merely an observer, I do not wish to put words in your mouth, but I would appreciate your take on this matter, and @tenstrip's as well.

    tenstripMay 7, 2026· 4 reactions

    @firemanbrakeneck Last time I enabled anything for generation it got removed in a day so I won't unless they directly give me protection from vibe mods. I already have a bunch of hallway monitors following me who spam report all my realistic style I2V videos trying to farm protection ranks.

    firemanbrakeneckMay 7, 2026· 2 reactions

    @tenstrip Thank you, this is exactly the sort of thing I'm talking about.

    If civ genuinely wishes to reestablish rapport with the creators who built it up and sustain it, it needs to make a show of good faith. This looks to me more like a cash grab than respect.

    ultimo_intentoMay 7, 2026

    @CivitaiOfficial @CivitaiOfficial @CivitaiOfficialTeam <- Do better, be better!

    pjwhoopieMay 7, 2026

    I am kinda a newbie with LTX Generation. Using it with Comfy, what folders do I put your models in?

    hypo_crits420May 7, 2026

    @pjwhoopie checkpoint

    FusionCowMay 7, 2026· 1 reaction

    @firemanbrakeneck I literally don't know I wasn't made aware of this

    rjoxMay 7, 2026· 8 reactions
    CivitAI

    is there a working workflow out there somewhere? the one on huggingface is a broken mess

    kudon44May 12, 2026

    Yeah, Sulphur is cool but that is kind of embarrassing for the creator. Kind of basic, too.

    FantasticFeverMay 7, 2026· 6 reactions
    CivitAI

    Sulphur 2 looks to be the MF GOAT. It's the closest we have to Grok unmoderated

    alexds9May 9, 2026· 5 reactions
    CivitAI

    Can we use it for training on Civitai?

    EarthboundAIMay 9, 2026
    CivitAI

    So i have a question, how is this with anime based animations?

    alexds9May 9, 2026· 4 reactions
    CivitAI

    What about GGUF version?

    alexds9May 10, 2026· 2 reactions

    @FantasticFever Thank you!

    FantasticFeverMay 10, 2026· 1 reaction

    @alexds9 I didn't try it, been using fp8, recommend this lora for distill https://huggingface.co/Seregil13th/Sulphur-2-base/tree/main/distill_loras

    senileroachMay 10, 2026

    @FantasticFever Thank you :)

    BigSad11May 11, 2026· 1 reaction
    CivitAI

    I've tried so many things to get T2V to work. Different sigmas, steps, using the distilled version or dev version with lora. I just can't seem to get good T2V results... Is this mainly for I2V, is it just not there yet or am I doing something terribly wrong? I downloaded the workflows from their github but ya... Nothing 🥲

    tenstripMay 11, 2026

    It's undertrained right now really, a bit early to pull the shot and offer on-site generation but nobody contacted about this. Needs a ton of lora stacks currently for T2V. Right now dataset is being pruned down for high quality reinforcement runs.

    herkus_baronas631May 12, 2026

    Something is wrong with your workflow. I generated a dozen videos with this text to video model yesterday and everything turned out the way I wanted. True, there is a minus - in all the videos, if you can see women's breasts, you can 'see' nipples through the clothes. Not the nipples themselves, but not quite natural-looking mounds. And the movements, the environment, the camera movement - no problems.

    UPD. I just generated text to video in old side workflow - it works. Could you tell me what specifically isn't working for you? What query are you giving? Well, I didn't generate anything strictly "nsfw", maybe that's why everything works?

    ss9999May 12, 2026

    A Reddit discussion said this model can't handle men well and that every scene has to have a female present. That sounds like BigLove for SDXL where I would have to put like 30 negative terms in to avoid man-man scenes transforming the men into women. However, I see two examples of man-man here (albeit with one of them feminizing the middle guy, especially the butt) so perhaps that comment was about version 1.

    tenstripMay 12, 2026· 1 reaction

    @ss9999 It's just undertrained and mostly generalized and not able to fully target very specific prompts like that, but if you do i2v that shouldn't happen with the right detailed prompt and image. Seems like a weak prompt and bad WF to cause that. There's way more gay and male-male interactions than lesbian scenes in the dataset.

    andresbravo2003May 12, 2026
    CivitAI

    hmm... interesting choice