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    Minimax H3 Multi Ref workflow for low VRAM - v2.0
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    Preview 139906992

    2.0 updated

    Detail could be found in the link below:

    新版本更新詳細可以參考下方連結

    https://civarchive.com/articles/33990/minimax-h3-simple-workflow-multiref-for-low-vram-updated-20

    This is a simple workflow for VoxCPM2, featuring a single-speaker setup and a multi-speaker setup.

    這是作為輸助語音生成VoxCPM2的Workflow

    https://civarchive.com/models/2865730/voxcpm2-simple-workflow-for-low-v-ram

    I've also written an article about VoxCPM2—feel free to check it out if you're interested!

    還有關於VoxCPM2的文章, 有興趣可以看看

    https://civarchive.com/articles/34023/why-do-we-still-need-a-audio-generation-model-even-minimax-h3-could-produce-audio

    image.png

    image.png

    This is the simplest Minimax H3 Multi Ref workflow, and you can easily convert it to Image to Video or First-Last Frame to Video if needed. Detailed instructions can be found in the article linked below, so I will not repeat them here.


    這是最簡單的 Minimax H3 Multi Ref Workflow, 如果想轉成image to Video 或 First Last Frame to Video就可以了

    詳細說明可以參考下方連結的文章, 這兒就不重覆了

    https://civarchive.com/articles/33959/for-someone-whom-want-to-use-minimax-h3-in-low-vram

    📊 Hardware Requirements

    • 8GB VRAM is usable but suboptimal.

    • 12GB VRAM minimum is highly recommended.

    • 32GB+ System RAM is required.

    • Note: VRAM will inevitably fill up, forcing the system to offload data to system RAM.

    ➡️ Model & Text Encoder Selection

    • Model: Choose the INT8 convrot version (Civitai Link). Avoid the GGUF model due to excessive quality degradation.

    • Text Encoder: Stick to INT8. Using GGUF doubles the generation time and carries a very high risk of OOM (Out of Memory) errors.

    • CLIP: GGUF is perfectly fine here; Q4KM is the top choice.

    • Model Versions:

      • fl2v version: For Image to Video / First Image / First-Last Image tasks.

      • ref2va version: For Multi-reference tasks (Video / Dialogue Audio / BGM Audio).

    💡 LoRA Settings

    • Low VRAM Adjustments: You can consider 4 steps, but it is not recommended. It degrades the quality too much, turning H3's best features—the dialogue and sound effects—into complete garbage.

    • Recommended: Use 8 steps if your hardware allows.

    • 768p Version: Even for the 4-step 768p model, the creator still recommends 6–8 steps. This specific 768p version delivers highly impressive image and audio quality.

    • Note: LoRAs are also split into fl2v and ref2v versions. Download the one that matches your specific workflow needs.

    🗒 VAE Configuration

    • Video VAE: Consider using the INT8 version. It has a slightly smaller file size with negligible difference in final quality.

    • Audio VAE: The file size is already inherently small, so the version choice is inconsequential.

    🛠 Workflow & Speed Optimization

    • Keep it Simple: Due to Low VRAM limitations, keep your main workflow minimal. Move non-generation nodes like Prompt Enhancer and Upscale into a separate standalone workflow to prevent OOM errors.

    • Prompt Enhancer (Chinese): Chinese language users can consider T8. It supports running local models natively without requiring an API.

    • Sage Attention: It is strongly recommended to integrate Sage attention into your workflow, as it drastically improves generation speed. A tutorial link is provided below.

    • Easy Cache Node: This node yields marginal performance gains when paired with 4–8 step LoRAs. However, it is retained in the workflow since it introduces zero visual degradation.

    📥 Workflow Downloads & Resources

    • Sample Workflow: The attached file contains a simple workflow that I am currently using. Feel free to download and use it if needed.

    • This Workflow: This is the simplest Minimax H3 Multi Ref workflow. You can easily convert it to Image to Video or First-Last Frame to Video based on your needs.

    • Detailed Guide: For a comprehensive breakdown, please refer to the article linked below, so I will not repeat the details here.

    🌟 Minimax H3 完整設定與優化指南

    📊 硬體需求

    • 8GB VRAM:勉強可用,但體驗不佳。

    • 建議最低 12GB VRAM:強烈推薦的硬體門檻。

    • 系統 RAM 32GB 以上:不可或缺的配置。

    • 備註:不論如何調整,VRAM 遲早都會裝不下,系統最後還是會自動 offload(分流)到系統 RAM。


    ➡️ 模型與 Text Encoder 選擇

    • 主要模型:請認準並選用 INT8 convrot 版本(Civitai 連結)。請別選 GGUF 格式,因為畫面劣化實在太嚴重。

    • Text Encoder:同樣請堅持使用 INT8。如果換成 GGUF,生成時間足足會慢上一倍,而且有極大機率會直接爆顯存(OOM)。

    • CLIP:這邊可以使用 GGUF,首選為 Q4KM

    • 模型版本對應

      • fl2v 版本:適用於 Image to Video(圖生影片)/ First Image(首幀)/ First Last Image(首尾幀)任務。

      • ref2va 版本:適用於 Multi-reference(多重參考)任務(如:影片 / 對白音訊 / BGM 背景音樂)。


    💡 LoRA 設定

    • 低顯存(Low VRAM)調整:雖然可以考慮設定為 4 steps,但非常不建議。因為劣化太過嚴重,會導致 H3 最強大的音效與對白直接變成垃圾。

    • 推薦設定:在硬體條件允許的情況下,最好使用 8 steps

    • 768p 版本:就算是 4 steps 的 768p 版本,原創作者的官方建議依舊是 6–8 steps。其中這個 768p 版本的畫質與聲音表現都非常出色。

    • 備註:LoRA 同樣有區分 fl2vref2v 兩種版本,請務必根據自己的工作流需求對應下載。


    🗒 VAE 配置

    • Video VAE(影片 VAE):可以考慮使用 INT8 版本。檔案體積略小一些,且與原版相比幾乎沒有顯著差別。

    • Audio VAE(音訊 VAE):因為這個元件本來的體積就非常小,所以使用什麼版本都無所謂。


    🛠 工作流與速度優化

    • 保持簡單:由於是低顯存(Low VRAM)環境,主要工作流請盡量保持精簡。像 Prompt Enhancer(提示詞增強)Upscale(放大) 這類不涉及核心生成的節點,請獨立拆分到另一個工作流中,否則極度容易引發 OOM 錯誤。

    • Prompt Enhancer(中文使用者推薦):中文使用者可以考慮使用 T8 這個 Prompt Enhancer,它支援本地模型運作,不需要另外串接 API。

    • Sage Attention:強烈建議在工作流中加入並啟用 Sage attention,這會讓整體的生成速度產生極其明顯的差距。如果需要教學教程,可以參考下方提供的連結。

    • Easy Cache 節點:這個節點在搭配 4–8 steps 的 LoRA 時提速效果雖然沒有很顯著,但因為它不會造成圖片劣化,所以依然選擇保留在工作流中。


    📥 工作流下載與資源

    • 附帶工作流:附件中包含了我目前正在使用的簡單工作流,有需要的人可以自行下載使用。

    • 本工作流說明:這是目前最精簡的 Minimax H3 Multi Ref(多重參考)工作流,如果後續想要自行轉換成 Image to Video 或 First Last Frame to Video 也完全沒問題。

    • 詳細教學:更多細節說明與圖文教學可以參考下方連結的文章,此處就不再重複贅述。



    Description

    some critial node change to use T8

    details could be found in the link below:

    https://civitai.red/articles/33990/minimax-h3-simple-workflow-multiref-for-low-vram-updated-20

    FAQ

    Workflows
    MiniMax H3

    Details

    Downloads
    215
    Platform
    CivitAI
    Platform Status
    Available
    Created
    8/16/2026
    Updated
    8/18/2026
    Deleted
    -

    Files

    minimaxH3MultiRef_v20.json

    Mirrors

    CivitAI (1 mirrors)