CivArchive
    Lonecat's MiniMax H3 FL2VA/ REF2VA with Advanced Optimizers for low and High VRAM users. Eros ready. - V4.0 Overhaul
    NSFW

    MiniMax H3

    This is an advanced workflow with numerous options. It is not necessarily designed for beginners (although I encourage you to try it). For a simpler version, try my one, Here: https://civarchive.com/models/2600919/lonecats-simple-workflows-minimax-h3-krea-2-zit-klein9b-illustrious-flux-wan22-qwen-image-edit


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

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

    This represents hundreds of hours of work that I give away for free. If you enjoy it, Please make sure to 👍like and post to my workflows. That is how you support me!!! Also, feel free to ⚡tip 😉


    Uses my ComfyUI_LC123_nodes

    也有中文说明

    V5.0

    I went back to the drawingboard. I borrowed an idea (or two) from @Plaguekind, researched several other optimization ideas, and made a change to the LLM:

    • Swapped out cheesy LLM prompter for QwenVL with Minimax 🎞️ options.

    • Changed the entire setup on how the models swap.

    • Moved stuff around to confuse anyone who just got used to the other workflow.

      • Eliminated duplicate loaders.

      • eliminated duplicate Preview windows.

    • Swapped out the limited LoRA loaders for a Power LoRA loader.

    • Improved the Sampler setup.

    • Added and updated notes.

    • drank a lot of ☕

    V4.0

    I spent the last few weeks going through everyone else's workflows to see what worked and what did not. I built some custom nodes to deal with issues and tested out pretty much every optimization setup listed in the ComfyUI manager and on CivitAI

    I can get faster, but with less quality. I can go slower, but not gain much more quality. I tried chunking, Sparse attention, Optimizers, Cache options, etc.


    I trimmed it down to this:

    • Overhauled the reference area

    • created pipes to better transfer data

    • Added Advanced Sparse Attention and H3 Optimizer nodes.

    • Added h3-eros-max capabilities

    V3.2

    Man, I'm batting 1.000 as of late 🤔

    • Added a second LoRA loader

    • Replaced the Sage attention nodes with the new H3 ones

    • Fixed the break there at the same time 🙄

    • made a connection redo in the reference area.

    V2.0

    • Added Turbo LoRAs

    • Added H3 Sigma schedulers

    • Massive update in notes

    • Added LoRA Loader that works for both models

    • Upgraded the LLM prompt Instructions to better align with the Model

    Overview

    This workflow includes a comprehensive set of features designed for advanced video generation and enhancement:

    • Support for GGUF or standard diffusion models and CLIP models

    • Integrated LLM for intelligent prompt engineering

    • First-frame / last-frame to video (FLF2V) generation

    • Reference-to-video (REF2V) capability

    • Supports up to 4 reference images (expandable via additional connections)

    • Accepts video inputs

    • Accepts audio inputs

    • RIFE frame interpolation

    • RTX Super Resolution upscaling

    • 也有中文说明

    Description

    V4.0

    • Overhauled the reference area

    • created pipes to better transfer data

    • Added Advanced Sparse Attention and H3 Optimizer nodes.

      • Speed is significantly faster with better quality than other sparse attention setups.

      • even works with Sage Attention!!

    • Added optimized Sage Attention nodes

    • Added h3-eros-max capabilities

    FAQ

    Comments (5)

    qingyun6663Aug 30, 2026
    CivitAI

    what about the GPU memory requirement about the MinimaxH3? If I can use this workflow to create 5s video@ 720P with RTX 5060-8G, that's really Schön~

    lonecatone23
    Author
    Aug 30, 2026

    I ran it specifically on my Stryx RTX 5060 with 8gb. I will say that EROS does not do well. I was using the INT8 Convrot version with the trubo LoRAs

    qingyun6663Aug 30, 2026

    @lonecatone23 
    Hop the future version may deal with it......lol
    or I might need to modify mt laptop's GPU memory~

    lonecatone23
    Author
    Aug 30, 2026

    The H3 optimizer has setting to dial VRAM usage down. I left good notes

    qingyun6663Aug 30, 2026

    @lonecatone23 nice~

    Workflows
    Anima

    Details

    Downloads
    254
    Platform
    CivitAI
    Platform Status
    Available
    Created
    8/30/2026
    Updated
    9/3/2026
    Deleted
    -

    Files

    lonecatsMinimaxH3FL2VAREF2VAWith_v40Overhaul.json

    lonecatsMinimaxH3FL2VAREF2VAWith_v40Overhaul.json