Minimax H3 T2V / I2V / REF2V Advanced Filmmaking Workflow | All Speedups + QoL Features

A no-nonsense high level T2V / I2V / FFLF / REF2V workflow for Minimax H3 with lots of options & togglable quality of life features.

• Toggle between the [T2V / I2V / FFLF] model & the [REF2VA] model easily

• Added Custom-Audio feature to T2V / I2V: Lipsyncing to custom dialogue/music is now easy!

• Speedup: Sage-Attn + New Sol-Attn [https://github.com/kijai/ComfyUI-SolAttn_triton]

• Speedup node: EasyCache / Spectrum [https://github.com/xmarre/ComfyUI-Spectrum-MiniMax-H3]

• Turbo LoRA (t2v/i2v):

  • Kijai's Lightx2v version: [https://huggingface.co/Kijai/MiniMax-H3_comfy/blob/main/loras/minimax_h3_fl2v_lightx2v_turbo_4step_v0.1_comfy_resized_avg_rank_21_bf16.safetensors] (6-10 steps, 0.6-1.0 strength)

  • Alternative: [https://huggingface.co/larryvrh/MiniMax-H3-Turbo-Lora/blob/main/minimax_h3_turbo_4step_ema_ckpt500.safetensors] (8 Steps, 1.0-1.4 strength)

• RIFE Frame Interpolation (24 fps -> 60 fps)

• Easily togglable reference fields: 4 pictures, 1 audio, 1 video

How to use the workflow / prompt for Minimax H3:

Use this workflow if you:

• Are an AI Filmmaker who values character/scene consistency

• Want to be able to use FFLF effectively, seamlessly extend videos, or use character reference sheets.

• Want to edit videos, or copy & use motion from reference videos

• Want fine-tuned control over your shots visuals and audio.

If you wish to generate simple one-off video clips like Will Smith eating spaghetti, the t2v/i2v model that you can toggle to in this workflow will do that for you.

Kijai's int8 convrot video vae: https://huggingface.co/Kijai/MiniMax-H3-experimental/blob/main/minimax_h3_video_vae_int8_convrot.safetensors

UPDATE YOUR COMFY CUDA VERSION TO 13.0. If you start comfy and see cu130:

[INFO] pytorch version: 2.13.0+cu130

Then you are good to go! But if you are using cu126, then ALL your gens with the best version of Minimax's model (INT8 convrot) will be 2x slower than they should be due to inefficient comfy-kitchen operations! Keep in mind if you update your cuda, you will need to reinstall Sage Attention! Download the correct wheel from here https://wildminder.github.io/AI-windows-whl/

ALL MODEL / NODE LINKS ARE IN THE WORKFLOW NOTES OR EASILY INSTALLABLE THROUGH COMFY-UI MANAGER.

If you appreciate what I'm doing, please consider following/subscribing on my patreon (free) which gets access to all my work early.

https://www.patreon.com/cw/foxfuressence

Also my youtube where I make AI filmmaking tutorials plz & thx:

https://www.youtube.com/@foxfuressence