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Sep 21, 2026
MiniMax H3
Bug fixes:
Picture2 "match" option had broken connection. Fixed.
"LLM Summary" error when 0 reference images. Fixed.
New Features:
Latent Upscale support
2-Stage Generation support
Very Intuitive settings management per-stage.
Ability to create "Seamless Extension" videos while using Latent Upscale
Results: good, but not quite seamless
Disable Latent Upscale / 2nd Pass for "seamless"
Included option to "downscale video guide".
Generates from downscaled video tail
Latent upscale > 2nd Pass
The upscaled video extension is merged with the original full res video.
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MiniMax H3 is licensed by MiniMax under the MiniMax H3 Community License Agreement. That agreement’s Applicable Territory excludes the European Union, the United Kingdom, the Republic of Korea and the United States of America. Your use of H3 and of any H3 derivative is subject to that agreement and its Acceptable Use Policy.
MiniMax H3
Simply Advanced - MiniMax H3 Workflow by altoiddealer
This workflow was built from the ground up by myself working daily over the course of 2-3 weeks, aiming to be well structured, expandable, and easy to use without sacrificing any functionality.
Main features:
Supports up to: 6 Images, 2 Videos, 3 Audio.
ANY can be set as reference, guide, or both. This is much more useful than the average user understands - I have not yet seen this support in any other workflow.
Latent Upscale and/or 2-Stage Generation
Intuitive settings/LoRA management for each stage.
1-4 steps LLM Prompt Enhancement
Subgraph contains a dashboard to generate / edit LLM's responses before they pass into the next stage.
Includes my personal 4-Step Ref2VA pipeline.
Step 1 Prompt Enhancement/Expansion: (Optional Step). Allows the LLM to interpret the user's prompt more verbosely and in relation to the reference materials. Catching/editing discrepancies here will yield much better results in next steps.
Step 2: Reference Analysis: Creates a detailed mapping of the references in relation to the Expanded Prompt. The resulting Reference Map is included as part of the context in the next steps.
Step 3: Creative Director: Considers Expanded Prompt + Reference Analysis to create a Creative Blueprint.
Step 4: Prompt Compiler: Conforms the Reference Map + Creative Blueprint into the H3 prompt structure
Includes my personal 1-Step FL2VA Prompt Enhance
The system prompt begins with base instructions, adding task specific instructions (T2VA / I2VA / FL2VA / L2VA)
The mode is detected automatically based on the state of Image 1 / Image 2.
You, the user, can easily add your own LLM instructions into this system as selectable options. Take a shot at making your own multi-stage pipeline!
Seamless video continuation option - idea taken from Seed Hunter workflow
Force Audio option - idea taken from Seed Hunter workflow
Easily expandable framework
Easily add/manage speedups, LoRAs, etc
Is the poster child for an amazing new node, Pass or None. Workflow developers, start using this!!

ComfyUI Requirements:
Be updated.
MUST have comfyui-frontend version < v1.50.5 (Fixed broken Custom Combo nodes in subgraphs)
Required Custom Nodes:
Optional Custom Nodes:
Resize Image/Mask Alt from comfyui_essential-er My repo. Feel free to replace with your favorite resize node
Load Video (Upload) from ComfyUI-VideoHelperSuite Feel free to replace with another Load Video node.
Datetime String from comfyui-various - Useful for naming outputs. NOT REQUIRED
ComfyUI-Spectrum-MiniMax-H3 - Speedup option. NOT REQUIRED

