Text-to-Video
MiniMax H3
Safetensors
lora
adapter
comfyui
pruned
pruned-model
curve-form
text-to-audio
audio-video
video-generation
audio-generation
synchronized-audio
few-step
four-step
4-step
turbo
accelerated-inference
further-trained
checkpoint-500
checkpoint-600
checkpoint-850
v4
ema
euler
beta-scheduler
bfloat16
bf16
partial-conversion
| license: apache-2.0 | |
| base_model: Comfy-Org/MiniMax-H3 | |
| base_model_relation: adapter | |
| pipeline_tag: text-to-video | |
| tags: | |
| - minimax-h3 | |
| - lora | |
| - adapter | |
| - comfyui | |
| - pruned | |
| - pruned-model | |
| - curve-form | |
| - text-to-video | |
| - text-to-audio | |
| - audio-video | |
| - video-generation | |
| - audio-generation | |
| - synchronized-audio | |
| - few-step | |
| - four-step | |
| - 4-step | |
| - turbo | |
| - accelerated-inference | |
| - further-trained | |
| - checkpoint-500 | |
| - checkpoint-600 | |
| - checkpoint-850 | |
| - v4 | |
| - ema | |
| - euler | |
| - beta-scheduler | |
| - safetensors | |
| - bfloat16 | |
| - bf16 | |
| - partial-conversion | |
| # MiniMax-H3 Turbo LoRA — ComfyUI Pruned-Model Compatibility Conversions | |
| This repository contains third-party **ComfyUI compatibility conversions** of the original **MiniMax-H3 Turbo LoRA** created by **[larryvrh](https://huggingface.co/larryvrh)**. | |
| The Turbo LoRA enables few-step MiniMax-H3 audio-video generation, producing joint video and synchronized audio using substantially fewer sampling steps than the standard MiniMax-H3 workflow. | |
| This repository includes compatibility conversions of the initial Turbo weights as well as later **checkpoint-500**, **checkpoint-850**, and **v4 step-600** releases. | |
| These LoRAs are intended for the **pruned/curve-form MiniMax-H3 checkpoint used by ComfyUI**. | |
| > **Recommended checkpoint:** `minimax_h3_turbo_v4_step600_ema_pruned_comfyui.safetensors` | |
| > | |
| > **Recommended settings:** **8 steps · Euler sampler · Beta scheduler** | |
| --- | |
| # Workflow Examples | |
| ## New Workflow Output | |
| This is the output from the current recommended workflow using the newer **v4 step-600 EMA** checkpoint and recommended sampling configuration. | |
| <video | |
| src="https://huggingface.co/drbaph/MiniMax-H3-Turbo-Lora-ComfyUI/resolve/main/assets/MiniMax_H3_audio.mp4" | |
| controls | |
| loop | |
| width="100%"> </video> | |
| ### New Recommended Workflow | |
| [Download the current ComfyUI workflow](https://huggingface.co/drbaph/MiniMax-H3-Turbo-Lora-ComfyUI/resolve/main/fl_minimax_h3_turbo_lora_example_workflow.json?download=true) | |
| The current workflow is: | |
| `fl_minimax_h3_turbo_lora_example_workflow.json` | |
| Recommended starting configuration: | |
| ```text | |
| Checkpoint: minimax_h3_turbo_v4_step600_ema_pruned_comfyui.safetensors | |
| Steps: 6 | |
| Sampler: euler | |
| Scheduler: beta | |
| LoRA strength: 1.0 | |
| ``` | |
| --- | |
| ## Recommended Setup | |
| For the best overall results in this repository, start with: | |
| `minimax_h3_turbo_v4_step600_ema_pruned_comfyui.safetensors` | |
| ### Recommended ComfyUI settings | |
| | Setting | Recommended | | |
| | ----------------- | ------------------------------------------------------------ | | |
| | LoRA | `minimax_h3_turbo_v4_step600_ema_pruned_comfyui.safetensors` | | |
| | Steps | `6-8` | | |
| | Sampler | `euler` | | |
| | Scheduler | `beta` | | | |
| | LoRA strength | `1.0` starting point | | |
| The **v4 step-600 EMA** checkpoint is currently the recommended general-purpose version in this repository. | |
| For most generations, **8 steps with Euler and the Beta scheduler** is the recommended starting configuration for these ComfyUI compatibility versions. | |
| --- | |
| ## Old Workflow Output | |
| The following video and workflow are retained as an example of the previous Turbo LoRA configuration. | |
| <video | |
| src="https://huggingface.co/drbaph/MiniMax-H3-Turbo-Lora-ComfyUI/resolve/main/assets/MiniMax_H3_00060-audio.mp4" | |
| controls | |
| loop | |
| width="100%"> </video> | |
| ### Old Workflow | |
| [Download the old ComfyUI workflow](https://huggingface.co/drbaph/MiniMax-H3-Turbo-Lora-ComfyUI/resolve/main/fl_minimax_h3_turbo_lora_example_workflow_old.json?download=true) | |
| The previous workflow has been renamed to: | |
| `fl_minimax_h3_turbo_lora_example_workflow_old.json` | |
|  | |
| --- | |
| ## Original Project | |
| The original LoRA weights, training work, distillation method, audio/video sampling implementation, documentation and source files were created and released by **larryvrh**. | |
| **Original repository:** | |
| [larryvrh/MiniMax-H3-Turbo-Lora](https://huggingface.co/larryvrh/MiniMax-H3-Turbo-Lora) | |
| I did **not** train, distill or create the original Turbo LoRA weights. | |
| This repository provides modified compatibility versions intended to allow the compatible LoRA adapters to load with ComfyUI's built-in MiniMax-H3 LoRA loader when using the pruned/curve-form model. | |
| Full credit for the original MiniMax-H3 Turbo LoRA, training and distillation method belongs to **larryvrh**. | |
| --- | |
| ## Included Files | |
| | File | Description | | |
| | --------------------------------------------------------------- | ------------------------------------------------------------------------------------------------- | | |
| | `minimax_h3_turbo_v4_step600_ema_pruned_comfyui.safetensors` | **Recommended.** Pruned-model ComfyUI compatibility conversion of the v4 step-600 EMA checkpoint. | | |
| | `minimax_h3_turbo_v4_step600_pruned_comfyui.safetensors` | Non-EMA version of the v4 step-600 checkpoint for comparison. | | |
| | `minimax_h3_turbo_4step_ema_ckpt850_pruned_comfyui.safetensors` | EMA compatibility conversion of the checkpoint-850 weights. | | |
| | `minimax_h3_turbo_4step_ckpt850_pruned_comfyui.safetensors` | Non-EMA compatibility conversion of the checkpoint-850 weights. | | |
| | `minimax_h3_turbo_4step_ema_ckpt500_pruned_comfyui.safetensors` | Further-trained checkpoint-500 EMA variant in the pruned-model ComfyUI format. | | |
| | `minimax_h3_turbo_4step_ckpt500_pruned_comfyui.safetensors` | Further-trained checkpoint-500 non-EMA variant in the pruned-model ComfyUI format. | | |
| | `minimax_h3_turbo_4step_ema_pruned_comfyui.safetensors` | Compatibility conversion of the initial EMA Turbo release. | | |
| | `minimax_h3_turbo_4step_pruned_comfyui.safetensors` | Compatibility conversion of the initial non-EMA Turbo release. | | |
| | `fl_minimax_h3_turbo_lora_example_workflow.json` | **Current recommended ComfyUI example workflow.** | | |
| | `fl_minimax_h3_turbo_lora_example_workflow_old.json` | Previous example workflow, retained for reference and comparison. | | |
| | `assets/MiniMax_H3_audio.mp4` | Output video from the **new recommended workflow**. | | |
| | `assets/MiniMax_H3_00060-audio.mp4` | Output video from the previous workflow. | | |
| The EMA and non-EMA files remain separate and contain different tensor values. | |
| The files without checkpoint identifiers preserve the earlier preview weights. | |
| The `ckpt500` and `ckpt850` files belong to the older training line, while the `v4_step600` files use the newer **v4 training recipe**. | |
| These files are partial compatibility versions of the original full-model Turbo LoRAs for use with the pruned/curve-form MiniMax-H3 architecture. | |
| --- | |
| ## Which File Should I Use? | |
| ### Recommended — v4 Step-600 EMA | |
| Start with: | |
| `minimax_h3_turbo_v4_step600_ema_pruned_comfyui.safetensors` | |
| Recommended configuration: | |
| * **Steps:** `6-8` | |
| * **Sampler:** `euler` | |
| * **Scheduler:** `beta` | |
| * **LoRA strength:** start at `1.0` | |
| This is the **recommended checkpoint for most generations**. | |
| ### v4 Step-600 non-EMA | |
| For comparison: | |
| `minimax_h3_turbo_v4_step600_pruned_comfyui.safetensors` | |
| The non-EMA weights are provided primarily for testing and comparison against the recommended EMA checkpoint. | |
| ### Checkpoint-850 | |
| EMA: | |
| `minimax_h3_turbo_4step_ema_ckpt850_pruned_comfyui.safetensors` | |
| Non-EMA: | |
| `minimax_h3_turbo_4step_ckpt850_pruned_comfyui.safetensors` | |
| These are retained for comparison with the newer v4 training line. | |
| ### Checkpoint-500 | |
| EMA: | |
| `minimax_h3_turbo_4step_ema_ckpt500_pruned_comfyui.safetensors` | |
| Non-EMA: | |
| `minimax_h3_turbo_4step_ckpt500_pruned_comfyui.safetensors` | |
| These preserve the earlier further-trained checkpoint-500 release. | |
| ### Initial Preview Weights | |
| The following files preserve the initial preview versions: | |
| * `minimax_h3_turbo_4step_pruned_comfyui.safetensors` | |
| * `minimax_h3_turbo_4step_ema_pruned_comfyui.safetensors` | |
| They are kept primarily for comparison and reproducibility. | |
| --- | |
| ## Recommended Workflow | |
| The current recommended workflow file is: | |
| `fl_minimax_h3_turbo_lora_example_workflow.json` | |
| Download: | |
| [fl_minimax_h3_turbo_lora_example_workflow.json](https://huggingface.co/drbaph/MiniMax-H3-Turbo-Lora-ComfyUI/resolve/main/fl_minimax_h3_turbo_lora_example_workflow.json?download=true) | |
| It is intended to be used with: | |
| `minimax_h3_turbo_v4_step600_ema_pruned_comfyui.safetensors` | |
| Recommended configuration: | |
| ```text | |
| Steps: 8 | |
| Sampler: euler | |
| Scheduler: beta | |
| LoRA strength: 1.0 | |
| Video sigma shift: 12 | |
| Audio sigma shift: 4-6 | |
| ``` | |
| The corresponding example output is: | |
| `assets/MiniMax_H3_audio.mp4` | |
| [View / download MiniMax_H3_audio.mp4](https://huggingface.co/drbaph/MiniMax-H3-Turbo-Lora-ComfyUI/resolve/main/assets/MiniMax_H3_audio.mp4) | |
| --- | |
| ## Previous Workflow | |
| The previous example workflow is retained as: | |
| `fl_minimax_h3_turbo_lora_example_workflow_old.json` | |
| Download: | |
| [fl_minimax_h3_turbo_lora_example_workflow_old.json](https://huggingface.co/drbaph/MiniMax-H3-Turbo-Lora-ComfyUI/resolve/main/fl_minimax_h3_turbo_lora_example_workflow_old.json?download=true) | |
| Its corresponding example output is: | |
| `assets/MiniMax_H3_00060-audio.mp4` | |
| [View / download MiniMax_H3_00060-audio.mp4](https://huggingface.co/drbaph/MiniMax-H3-Turbo-Lora-ComfyUI/resolve/main/assets/MiniMax_H3_00060-audio.mp4) | |
| --- | |
| ## About the Original Turbo LoRA | |
| The MiniMax-H3 Turbo LoRA is designed to generate joint video and synchronized stereo audio using dramatically fewer sampling steps than the standard MiniMax-H3 generation process. | |
| The original project demonstrated generation using substantially fewer sampling steps than the normal MiniMax-H3 workflow, providing a large reduction in sampling time. | |
| The newer Turbo checkpoints continue to improve upon the initial preview release. | |
| Refer to the original repository for the author's current documentation, training updates, standalone generation implementation and sampling recommendations: | |
| [larryvrh/MiniMax-H3-Turbo-Lora](https://huggingface.co/larryvrh/MiniMax-H3-Turbo-Lora) | |
| --- | |
| ## Why This Conversion Was Made | |
| The original Turbo LoRA files use tensor keys such as: | |
| `blocks.0.attn.qkv_proj.lora_A.weight` | |
| ComfyUI's built-in MiniMax-H3 LoRA resolver expects keys under the model namespace: | |
| `diffusion_model.blocks.0.attn.qkv_proj.lora_A.weight` | |
| Without that namespace, ComfyUI may report warnings such as: | |
| `[WARNING] lora key not loaded: blocks.0.attn.out_proj.lora_A.weight` | |
| The following namespace conversion was applied to the retained tensors: | |
| * `blocks.*` → `diffusion_model.blocks.*` | |
| * `token_refiner.*` → `diffusion_model.token_refiner.*` | |
| The retained tensor values, BF16 dtype, tensor shapes, LoRA rank and A/B orientation were preserved. | |
| --- | |
| ## Conversion Details | |
| Each original full-model Turbo LoRA contained: | |
| | Component | Count | | |
| | --------------------- | ----: | | |
| | Source tensors | 518 | | |
| | Source LoRA A/B pairs | 259 | | |
| Each pruned-model compatibility conversion contains: | |
| | Component | Count | | |
| | ----------------------- | ----: | | |
| | Retained tensors | 416 | | |
| | Retained LoRA A/B pairs | 208 | | |
| | Pruned AdaLN tensors | 102 | | |
| | Pruned AdaLN A/B pairs | 51 | | |
| The pruned adapters were: | |
| * 50 AdaLN projection pairs from `blocks.0` through `blocks.49`; | |
| * 1 AdaLN projection pair from `final_layer.adaln_proj.linear`. | |
| The retained adapters include: | |
| * all main-block attention adapters; | |
| * all main-block MLP adapters; | |
| * all token-refiner attention adapters; | |
| * all token-refiner MLP adapters. | |
| The retained attention, MLP and token-refiner tensors have dimensions compatible with the pruned/curve-form MiniMax-H3 checkpoint. | |
| --- | |
| ## Validation | |
| The converted LoRA structure was checked for: | |
| * complete LoRA A/B adapter pairs; | |
| * no orphan A or B tensors; | |
| * retained keys using the `diffusion_model.*` namespace; | |
| * no duplicated `diffusion_model.diffusion_model.*` prefixes; | |
| * no incompatible `adaln_proj` tensors; | |
| * preserved BF16 dtype; | |
| * preserved tensor shapes; | |
| * preserved LoRA ranks; | |
| * separate EMA and non-EMA weights; | |
| * no unresolved retained keys during ComfyUI loader-level validation. | |
| The original source files were not overwritten. | |
| --- | |
| ## Optional Acceleration | |
| The LoRAs have been tested working in ComfyUI with optional acceleration methods including: | |
| * **SageAttention** | |
| * **Sol Attention** | |
| * **Gradient** | |
| * **Spectrum** | |
| These acceleration methods are optional and are not included in this repository. | |
| They may also be combined with the Turbo LoRA depending on your ComfyUI workflow and available custom nodes. | |
| --- | |
| ## Important Limitation | |
| These files are **partial ComfyUI compatibility conversions intended specifically for the pruned/curve-form MiniMax-H3 architecture**. | |
| The original full-model Turbo LoRAs contain AdaLN adapters that do not directly match the corresponding dimensions of the pruned/curve-form MiniMax-H3 checkpoint. | |
| Those incompatible AdaLN tensors are therefore excluded from these compatibility versions. | |
| The retained attention, MLP and token-refiner LoRA tensors remain compatible with the pruned architecture. | |
| Because these are partial compatibility conversions, they should not be assumed to be numerically identical in behaviour to using the original full Turbo LoRA with its intended full MiniMax-H3 base. | |
| --- | |
| ## Usage | |
| Place the LoRA files inside: | |
| `ComfyUI/models/loras/` | |
| Use them with the **pruned/curve-form MiniMax-H3 checkpoint for ComfyUI**. | |
| ### Recommended LoRA | |
| `minimax_h3_turbo_v4_step600_ema_pruned_comfyui.safetensors` | |
| ### Recommended settings | |
| * **Steps:** `8` | |
| * **Sampler:** `euler` | |
| * **Scheduler:** `beta` | |
| * **Video sigma shift:** `12` | |
| * **Audio sigma shift:** `4-6` | |
| * **LoRA strength:** `1.0` recommended starting point | |
| The recommended workflow for these settings is: | |
| [Download `fl_minimax_h3_turbo_lora_example_workflow.json`](https://huggingface.co/drbaph/MiniMax-H3-Turbo-Lora-ComfyUI/resolve/main/fl_minimax_h3_turbo_lora_example_workflow.json?download=true) | |
| The corresponding example output is: | |
| [View `assets/MiniMax_H3_audio.mp4`](https://huggingface.co/drbaph/MiniMax-H3-Turbo-Lora-ComfyUI/resolve/main/assets/MiniMax_H3_audio.mp4) | |
| If necessary, LoRA strength can be adjusted slightly for individual generations. | |
| A reasonable starting range is approximately: | |
| `0.8-1.2` | |
| When comparing checkpoints, use the same: | |
| * prompt; | |
| * seed; | |
| * resolution; | |
| * frame count; | |
| * base model; | |
| * sampler; | |
| * scheduler; | |
| * LoRA strength; | |
| * workflow. | |
| This gives a meaningful comparison between checkpoint versions. | |
| --- | |
| ## Sampling Step Guidance | |
| The Turbo LoRA can operate at extremely low step counts, but image quality and motion consistency generally improve when moving beyond the minimum. | |
| ### 4 steps | |
| Maximum speed. | |
| Useful for testing and rapid previews. | |
| ### 6 steps | |
| Good speed/quality compromise. | |
| ### 8 steps | |
| **Recommended for the v4 step-600 EMA compatibility conversion.** | |
| Use: | |
| ```text | |
| 8 steps | |
| Euler sampler | |
| Beta scheduler | |
| ``` | |
| This is the recommended configuration used by the current example workflow. | |
| --- | |
| ## Audio and Scheduler Notes | |
| MiniMax-H3 generates video and synchronized audio as separate streams with different scheduling requirements. | |
| Incorrect audio scheduling can result in: | |
| * blown-out audio; | |
| * severe distortion; | |
| * noise-like audio; | |
| * unstable audio energy; | |
| * completely broken audio. | |
| For the current recommended ComfyUI compatibility workflow in this repository: | |
| ```text | |
| LoRA: minimax_h3_turbo_v4_step600_ema_pruned_comfyui.safetensors | |
| Steps: 8 | |
| Sampler: euler | |
| Scheduler: beta | |
| Video sigma shift: 12 | |
| Audio sigma shift: 4-6 | |
| LoRA strength: 1.0 | |
| ``` | |
| Do not automatically assume broken audio is caused by the LoRA. | |
| Check: | |
| * sampler configuration; | |
| * scheduler configuration; | |
| * audio sigma shift; | |
| * video sigma shift; | |
| * ComfyUI version; | |
| * MiniMax-H3 sampling implementation; | |
| * custom sampler nodes. | |
| --- | |
| ## Original Turbo Custom Node | |
| The original Turbo author also provides a dedicated ComfyUI custom node: | |
| [GitHub — Larryvrh/ComfyUI-MiniMax-H3-Turbo](https://github.com/Larryvrh/ComfyUI-MiniMax-H3-Turbo) | |
| The node includes a MiniMax-H3 Turbo LoRA loader and dedicated sampling functionality designed for MiniMax-H3's video/audio scheduling behaviour. | |
| A workflow is also included in the custom-node repository. | |
| The custom node evolves alongside the upstream Turbo weights, so users choosing that implementation should follow the settings documented in its current README. | |
| The settings documented in this repository refer to the tested **pruned-model compatibility workflow**, where the recommended starting point is: | |
| **v4 step-600 EMA · 8 steps · Euler · Beta scheduler** | |
| --- | |
| ## Compatibility | |
| These LoRAs are intended for the **pruned/curve-form MiniMax-H3 checkpoint used by ComfyUI**. | |
| The compatibility conversions are particularly useful when the original full-model LoRA cannot be loaded directly because of incompatible AdaLN dimensions. | |
| Optional acceleration methods confirmed working with these conversions include: | |
| * SageAttention | |
| * Sol Attention | |
| * Gradient | |
| * Spectrum | |
| Accelerators can generally be stacked where the corresponding ComfyUI implementations support it. | |
| --- | |
| ## Naming Notes | |
| The upstream project contains multiple generations of Turbo training. | |
| ### Older naming | |
| Files such as: | |
| `minimax_h3_turbo_4step_ema_ckpt500.safetensors` | |
| and: | |
| `minimax_h3_turbo_4step_ema_ckpt850.safetensors` | |
| belong to the older training line. | |
| In these filenames, `4step` refers to the few-step Turbo sampling target. | |
| ### Newer v4 naming | |
| Files such as: | |
| `minimax_h3_turbo_v4_step600_ema.safetensors` | |
| use the newer naming convention. | |
| Here: | |
| * `v4` refers to the newer training recipe; | |
| * `step600` refers to training step 600; | |
| * `ema` refers to the exponential-moving-average weights. | |
| The corresponding pruned ComfyUI compatibility conversion in this repository is: | |
| `minimax_h3_turbo_v4_step600_ema_pruned_comfyui.safetensors` | |
| This is the **recommended checkpoint**. | |
| --- | |
| ## Repository Workflow Files | |
| ### Current workflow | |
| `fl_minimax_h3_turbo_lora_example_workflow.json` | |
| [Download current workflow](https://huggingface.co/drbaph/MiniMax-H3-Turbo-Lora-ComfyUI/resolve/main/fl_minimax_h3_turbo_lora_example_workflow.json?download=true) | |
| Current workflow output: | |
| `assets/MiniMax_H3_audio.mp4` | |
| [View current workflow output](https://huggingface.co/drbaph/MiniMax-H3-Turbo-Lora-ComfyUI/resolve/main/assets/MiniMax_H3_audio.mp4) | |
| ### Previous workflow | |
| `fl_minimax_h3_turbo_lora_example_workflow_old.json` | |
| [Download previous workflow](https://huggingface.co/drbaph/MiniMax-H3-Turbo-Lora-ComfyUI/resolve/main/fl_minimax_h3_turbo_lora_example_workflow_old.json?download=true) | |
| Previous workflow output: | |
| `assets/MiniMax_H3_00060-audio.mp4` | |
| [View previous workflow output](https://huggingface.co/drbaph/MiniMax-H3-Turbo-Lora-ComfyUI/resolve/main/assets/MiniMax_H3_00060-audio.mp4) | |
| --- | |
| ## Attribution | |
| Original MiniMax-H3 Turbo LoRA author: | |
| **[larryvrh](https://huggingface.co/larryvrh)** | |
| Original project: | |
| **[MiniMax-H3-Turbo-Lora](https://huggingface.co/larryvrh/MiniMax-H3-Turbo-Lora)** | |
| Original ComfyUI Turbo custom node: | |
| **[ComfyUI-MiniMax-H3-Turbo](https://github.com/Larryvrh/ComfyUI-MiniMax-H3-Turbo)** | |
| This repository contains third-party, partial ComfyUI compatibility versions for the pruned/curve-form MiniMax-H3 checkpoint, including: | |
| * initial Turbo preview weights; | |
| * checkpoint-500 variants; | |
| * checkpoint-850 variants; | |
| * v4 step-600 variants. | |
| I do not claim authorship of: | |
| * the original Turbo LoRA weights; | |
| * the original LoRA training; | |
| * the original distillation method; | |
| * the original few-step sampling method; | |
| * the original dual video/audio scheduling implementation; | |
| * the original generation scripts; | |
| * the original documentation; | |
| * the MiniMax-H3 base model; | |
| * the pruned/curve-form MiniMax-H3 checkpoint. | |
| The modifications in this repository are compatibility conversions intended to make the compatible portions of the upstream Turbo LoRAs usable with the pruned/curve-form MiniMax-H3 architecture in ComfyUI. | |
| Please retain attribution to **larryvrh** and comply with the licences and terms of the original LoRA and MiniMax-H3 base model when using or redistributing these files. | |