CivArchive
    LTX 2.3 I2V/ T2V (Base & GGUF) use your own🔉& SEED VR2 upscaler (Depracated) - V2.0 upgrades
    NSFW
    Preview 125178656

    This model has not been updated. Do not use.

    Note: If you have ANY issues with nodes not downloading, read the notes or reach out. There's nothing that special about any of them that aren't core modules.

    ⛔⚠️🛑✋ Read the notes completly before using. Most common install and node problems are listed in the directions

    Instagram: https://www.instagram.com/synth.studio.models/

    Buy me a☕ https://ko-fi.com/lonecatone

    This represents many hours of work. If you enjoy it, please 👍like, 💬 comment , and feel free to ⚡tip 😉

    也有中文说明

    This is a 12gb VRam or more workflow.

    Two seperate versions. One with a latent upscaler and one without.

    • I like the one without, but the verdict is still out. I'd love feedback on what settings and what works.

    Features:

    • Does both T2V and I2V

    • Allows you to use your own audio track.

      • Note: Lip sync is really hit or miss on this one. I'm still working on adjustments

    • Easy setup and use

    • Motion adjustment for more dynamic videos

    • Multimodal guider for fine tuning audio to video dynamics

    • Prompt generation from an image

    • Prompt enhancement

    • Handles both Normal and NSFW generation

    • 也有中文说明

    Description

    • Upgraded flow and samplers

    • Better controls

    • fixed latent upscaler issues

    • Added 🔉🎶volume control

    • added an audio equalizer 🎶🎶

    • Added color match

    • Added Sharpen

    • Added film grain

    FAQ

    Comments (27)

    AI_Creator_JohnMar 25, 2026
    CivitAI

    In T2V mode, I couldn't figure out how to change the image dimensions and video duration.

    lonecatone23
    Author
    Mar 25, 2026

    I just checked the version I posted. All of teh controls wor width anhd legthare hooked up to the appropriate sliders. I am confused as to why you are having problems. Use the second slider to adjust length and the image MX slider to adjust size. It works automatically.

    AI_Creator_JohnMar 25, 2026

    @lonecatone23 In T2V mode, I couldn't find any sliders or parameter controls; by default, the duration is set to 7 seconds, with a height of 1600 and a width of 1408. I've thoroughly searched the entire workspace and couldn't find any settings for dimensions or duration.

    lonecatone23
    Author
    Mar 25, 2026

    @AI_Creator_John That's super wired. I didn;t modify it. I'll check tonight

    AshafMar 25, 2026
    CivitAI

    My video is blurry, no matter what I do or what modes I use, whether it's text-to-video or picture-to-video. Upscalers are disabled. LORs are disabled. What could be the problem?I'm using the GGUF version.

    lonecatone23
    Author
    Mar 25, 2026

    try this. Shorten the video length and in teh brains section, change it to the LTXV scheduler. Use 12 steps. Also, make sure you are using Euler as a sampler

    AshafMar 25, 2026

    @lonecatone23 Yes, I just started tinkering with the settings, and now it seems to be working more or less. You also have an error connecting the LORa. The LORa that was next to the upscaler loader didn't come with the model in the sampler. So, you had to install distilled LORa in a different loader. Maybe that's what was causing the problem? You need to select distilled LORa in both loaders.

    lonecatone23
    Author
    Mar 25, 2026· 1 reaction

    @Ashaf The LoRa needed to be downloaded seperately, but you only need the distiled LoRa for the upscale model. You might need lightning LoRa to drop steps down

    AshafMar 25, 2026· 1 reaction

    @lonecatone23 I solved the blur problem, so everything is great. Thank you for your work.

    lonecatone23
    Author
    Mar 25, 2026

    @Ashaf what was it?

    AshafMar 26, 2026

    @lonecatone23 I think it's because of the two LOR loaders, you need to install distilled LOR in both of them and the problem will go away. But I also changed the loaders themselves to others from KJ

    lonecatone23
    Author
    Mar 26, 2026

    @Ashaf Wired. That shouldnlt matte as they are in serial across the model. That sounds like a weight issue. The weight shold not be over 0.7

    CannondaleMar 25, 2026· 1 reaction
    CivitAI

    This is incredible thank you for all this hard work people like you are the ones who make the world a better place for humanity you are the definition of human greatness!!

    lonecatone23
    Author
    Mar 25, 2026

    Lol, I try. I have a broken node, so re-download it tomorrow

    yemajar767531Mar 29, 2026
    CivitAI

    Hi. Thanks for the workflow. The LTX 2.3 works great but not for NSFW content. I tried 10eros model, loras etc. but nothing. Suggestions?

    lonecatone23
    Author
    Mar 29, 2026

    Works fine for me. It's all I use now

    Use LoRas when applicable, especially for male geetalia. Penis Praxis is a good one. Same thing with fluids and actions.

    Oh, super important. Don't try using Prompt enhance. Even with implicit instructions, it screws it up. Less is more.

    Also, describe actions. instead of Blowjob, say "she bobs her head up and down", or "He slides his cock in and out". For sex, say something similar, or "she vigorously bounces up and down on his cock" when riding cowgirl.

    yemajar767531Mar 29, 2026

    @lonecatone23  Ok, thanks. I'll do some more tests. What strength value should the lora have ? Do you have any suggestions on names for the lora ? Thank you.

    lonecatone23
    Author
    Mar 29, 2026

    @yemajar767531 Not really. I always default to 0.8.

    Just filter for LTX 2.3 LoRas here. You'll find them

    yemajar767531Mar 29, 2026

    @lonecatone23 Ok...Thanks...

    arisecrossovtk945Apr 2, 2026
    CivitAI

    Hey, how do I fix this error



    Exception: An error occured in the ffmpeg subprocess:

    [aac @ 000001623337ba40] Input contains (near) NaN/+-Inf

    [aost#0:1/aac @ 000001623337a600] [enc:aac @ 00000162333c7440] Error submitting audio frame to the encoder

    [aost#0:1/aac @ 000001623337a600] [enc:aac @ 00000162333c7440] Error encoding a frame: Invalid argument

    [aost#0:1/aac @ 000001623337a600] Task finished with error code: -22 (Invalid argument)

    [aost#0:1/aac @ 000001623337a600] Terminating thread with return code -22 (Invalid argument)

    File "C:\Users\Shadow\ComfyUI\execution.py", line 525, 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:\Users\Shadow\ComfyUI\execution.py", line 334, in get_output_data

    return_values = await asyncmap_node_over_list(prompt_id, unique_id, obj, input_data_all, obj.FUNCTION, allow_interrupt=True, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb, v3_data=v3_data)

    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

    File "C:\Users\Shadow\ComfyUI\execution.py", line 308, in asyncmap_node_over_list

    await process_inputs(input_dict, i)

    File "C:\Users\Shadow\ComfyUI\execution.py", line 296, in process_inputs

    result = f(**inputs)

    ^^^^^^^^^^^

    File "C:\Users\Shadow\ComfyUI\custom_nodes\comfyui-videohelpersuite\videohelpersuite\nodes.py", line 600, in combine_video

    raise Exception("An error occured in the ffmpeg subprocess:\n" \

    lonecatone23
    Author
    Apr 2, 2026

    That popped up on me last night after updating. I have no clue. I've run it plenty of times without issue.

    Feed the log into Grok. I'm guessing FFMpeg did an update or something

    burshlattApr 5, 2026
    CivitAI

    "Two seperate versions. One with a latent upscaler and one without"

    Where can I find version without upscaler?

    For some reason, on my RTX 5070 ti 16 GB VRAM, the image on my monitors disappears and the generation process does not continue. I think this is due to the x2 upscaler.

    burshlattApr 5, 2026

    If anything, I'm talking about ltx-2.3-spatial-upscaler-x2-1.0.safetensors

    lonecatone23
    Author
    Apr 5, 2026

    I have two workflows in the folder, do I not?

    burshlattApr 5, 2026

    Sorry, my bad

    schlemihlApr 6, 2026

    ltx-2.3-spatial-upscaler-x2-1.0.safetensors - there is an updated version from ltx, version 1.1. look at their huggingspace page there you can find it.
    link: https://huggingface.co/Lightricks/LTX-2.3/tree/main

    lonecatone23
    Author
    Apr 6, 2026

    @schlemihl I actually tried 2.1.1. It's okay for longer videos. Made the same shorter test runs worse>

    In general I'm over this model. It's frigging impossible to wire and keep stable. I won't be updatin these workflows anytime soon.

    Workflows
    LTXV 2.3

    Details

    Downloads
    1,626
    Platform
    CivitAI
    Platform Status
    Available
    Created
    3/23/2026
    Updated
    5/16/2026
    Deleted
    -

    Files

    ltx23I2VT2VBaseGGUFUseYourOwn_v20Upgrades.zip