--- tags: - comfyui - minimax-h3 - first-last-frame - flf - reference-to-video - r2v - video-generation - int8 - sol-attn - spectrum - turbo-lora - lightx2v - motion-context - latent-upscaler - workflow - optimization - quantization --- # MiniMax-H3 INT8 FLF & Reference Video Workflows Collection A collection of optimized **ComfyUI workflows** for **MiniMax-H3**, designed for high-speed and controlled video generation using **INT8 quantization**, **Sol-Attn**, **Spectrum acceleration**, **Lightx2v LoRA**, **MiniMax-H3-Turbo-Lora (Experimental)**, **Motion Context**, and **Latent Upscaling**. These workflows provide optimized pipelines for: - First-Last-Frame (FLF) video generation - Reference-to-Video (R2V) generation - Motion Context-enhanced FLF generation - High-speed INT8 inference - LoRA-based acceleration - Latent video upscaling Optimized for the ComfyUI-compatible MiniMax-H3 model package. Base model: **Comfy-Org/MiniMax-H3** https://huggingface.co/Comfy-Org/MiniMax-H3 --- # Workflows | Workflow | File | Description | |---|---|---| | First-Last-Frame (FLF) | `MiniMax_int8_I2V-javanoYYMM.x.json` | Generate controlled video transitions using first and last frame images, with optional Motion Context conditioning. | | Reference-to-Video (R2V) | `MiniMax_int8_R2V-javanoYYMM.x.json` | Generate videos while maintaining reference image characteristics. | --- # Features ## INT8 Optimization Uses the INT8 version of MiniMax-H3. Benefits: - Reduced VRAM usage - Faster inference - Improved memory efficiency - Optimized local ComfyUI generation --- ## Sol-Attn Acceleration Integrated support for: **ComfyUI-SolAttn_triton** https://github.com/kijai/ComfyUI-SolAttn_triton Sol-Attn provides Triton-based optimized attention kernels for ComfyUI. Benefits: - Faster attention computation - Reduced attention overhead - Improved generation throughput --- ## Spectrum Acceleration Integrated support for: **ComfyUI-Spectrum-MiniMax-H3** https://github.com/xmarre/ComfyUI-Spectrum-MiniMax-H3 Features: - Faster sampling - Reduced generation time - Optimized MiniMax-H3 inference - Native ComfyUI workflow integration --- ## Motion Context Available in the **FLF workflow only**. **ComfyUI-H3-Motion-Context** https://github.com/NikoDemon80/ComfyUI-H3-Motion-Context Motion Context provides additional temporal motion information to the MiniMax-H3 FLF generation pipeline. Features: - Motion-context conditioning - Additional temporal motion guidance - Motion-aware FLF generation - Improved control over generated movement This custom node is currently integrated into: `MiniMax_int8_I2V-javanoYYMM.x.json` It is **not used by the R2V workflow**. --- ## Lightx2v LoRA Integrated support for the **Lightx2v LoRA** for MiniMax-H3: **Kijai/MiniMax-H3_comfy** https://huggingface.co/Kijai/MiniMax-H3_comfy Lightx2v LoRA is used as an additional acceleration method for reducing the number of sampling steps required for video generation. Features: - Reduced sampling steps - Faster video generation - Accelerated workflow iteration - Compatible with MiniMax-H3 ComfyUI workflows The optimal LoRA strength and sampling configuration may vary depending on the workflow and desired output quality. --- ## MiniMax-H3-Turbo-Lora (Experimental) Optional support for: **MiniMax-H3-Turbo-Lora-ComfyUI** https://huggingface.co/drbaph/MiniMax-H3-Turbo-Lora-ComfyUI Turbo-LoRA enables faster generation using fewer sampling steps. Features: - Low-step generation - Faster previews - Rapid workflow testing - ComfyUI-compatible implementation Recommended for: - Fast prototyping - Motion testing - Preview rendering This feature is experimental. Output quality may vary depending on: - Sampling steps - LoRA strength - Prompt complexity - Motion intensity - Resolution settings --- ## Latent Upscaler Integrated support for: **ComfyUI-MiniMaxH3_LatentUpscaler** https://github.com/Tr1dae/ComfyUI-MiniMaxH3_LatentUpscaler The Latent Upscaler provides a dedicated post-generation upscaling pipeline for MiniMax-H3 video output. Features: - Latent-space video upscaling - Higher output resolution - Improved fine details - Enhanced texture and image quality - Designed specifically for MiniMax-H3 workflows The upscaling stage can be used after the initial video generation to improve output resolution and visual detail without requiring the entire generation process to run at the higher resolution. --- # Workflow Details ## First-Last-Frame (FLF) ### `MiniMax_int8_I2V-javanoYYMM.x.json` A First-Last-Frame video generation workflow using MiniMax-H3 INT8. Input: - First frame (starting image) - Last frame (ending image) - Optional Motion Context Generates smooth transitions between two keyframes. Features: - First Frame + Last Frame conditioning - Controlled motion transitions - Scene transformation - Pose changes - Camera movement control - Optional Motion Context conditioning - INT8 inference - Sol-Attn acceleration - Spectrum acceleration - Lightx2v LoRA support - Optional Turbo-LoRA support - Latent Upscaler support Recommended for: - Cinematic transitions - Character animation - Camera movement - Transformation effects - Keyframe-based storytelling - Motion-guided generation --- ## Reference-to-Video (R2V) ### `MiniMax_int8_R2V-javanoYYMM.x.json` Reference-guided video generation workflow. Features: - Reference image conditioning - Character consistency - Appearance preservation - INT8 inference - Sol-Attn acceleration - Spectrum acceleration - Lightx2v LoRA support - Optional Turbo-LoRA support - Latent Upscaler support Recommended for: - Character videos - Product visualization - Consistent subjects - Image-driven animation **Motion Context is not included in this workflow.** --- # Required Custom Nodes Install the following custom nodes: ## ComfyUI-SolAttn_triton https://github.com/kijai/ComfyUI-SolAttn_triton ## ComfyUI-Spectrum-MiniMax-H3 https://github.com/xmarre/ComfyUI-Spectrum-MiniMax-H3 ## ComfyUI-H3-Motion-Context https://github.com/NikoDemon80/ComfyUI-H3-Motion-Context ## ComfyUI-MiniMaxH3_LatentUpscaler https://github.com/Tr1dae/ComfyUI-MiniMaxH3_LatentUpscaler Install via: ComfyUI Manager → Install Missing Custom Nodes --- # Required Models ## Main Model ComfyUI-compatible MiniMax-H3: https://huggingface.co/Comfy-Org/MiniMax-H3 ## Lightx2v LoRA **Kijai/MiniMax-H3_comfy** https://huggingface.co/Kijai/MiniMax-H3_comfy Used for Lightx2v acceleration. ## Optional Turbo-LoRA **MiniMax-H3-Turbo-Lora-ComfyUI** https://huggingface.co/drbaph/MiniMax-H3-Turbo-Lora-ComfyUI Used for experimental low-step acceleration. --- # Recommended Environment - Latest ComfyUI - Latest ComfyUI-Manager - Comfy-Org/MiniMax-H3 - ComfyUI-SolAttn_triton - ComfyUI-Spectrum-MiniMax-H3 - ComfyUI-H3-Motion-Context - ComfyUI-MiniMaxH3_LatentUpscaler - Kijai/MiniMax-H3_comfy - MiniMax-H3-Turbo-Lora-ComfyUI (Optional) --- # Installation 1. Update ComfyUI and ComfyUI-Manager. 2. Install the required custom nodes: ComfyUI-SolAttn_triton https://github.com/kijai/ComfyUI-SolAttn_triton ComfyUI-Spectrum-MiniMax-H3 https://github.com/xmarre/ComfyUI-Spectrum-MiniMax-H3 ComfyUI-H3-Motion-Context https://github.com/NikoDemon80/ComfyUI-H3-Motion-Context ComfyUI-MiniMaxH3_LatentUpscaler https://github.com/Tr1dae/ComfyUI-MiniMaxH3_LatentUpscaler 3. Download the main model: Comfy-Org/MiniMax-H3 https://huggingface.co/Comfy-Org/MiniMax-H3 4. Download the Lightx2v LoRA: Kijai/MiniMax-H3_comfy https://huggingface.co/Kijai/MiniMax-H3_comfy 5. Optional: download the experimental Turbo-LoRA: MiniMax-H3-Turbo-Lora-ComfyUI https://huggingface.co/drbaph/MiniMax-H3-Turbo-Lora-ComfyUI 6. Load the workflow: FLF: `MiniMax_int8_I2V-javanoYYMM.x.json` R2V: `MiniMax_int8_R2V-javanoYYMM.x.json` --- # Performance Configuration The workflows support multiple acceleration technologies that can be combined depending on the desired balance between speed, quality, motion control, and stability. ### Standard Fast Configuration INT8 + Sol-Attn + Spectrum ### Accelerated Configuration INT8 + Sol-Attn + Spectrum + Lightx2v LoRA ### FLF Motion Configuration INT8 + Sol-Attn + Spectrum + Motion Context ### Experimental Maximum-Speed Configuration INT8 + Sol-Attn + Spectrum + Lightx2v LoRA + Turbo-LoRA Latent Upscaler can then be used as a post-generation stage when higher output resolution is required. Performance depends on: - GPU architecture - VRAM capacity - Resolution - Frame count - Sampling steps - LoRA strength - Motion Context settings - CUDA/driver version --- # Recommended Workflow For a balance between speed and quality: **1. Generate at the base resolution** Use the INT8 MiniMax-H3 workflow with Sol-Attn and Spectrum. **2. Apply Motion Context when using FLF** Use Motion Context when additional temporal motion guidance is required. This feature is available in the FLF workflow only. **3. Apply acceleration LoRA** Use Lightx2v LoRA when fewer sampling steps are desired. **4. Optional Turbo-LoRA** Use Turbo-LoRA for experimental ultra-low-step generation and rapid previews. **5. Latent Upscaling** Use ComfyUI-MiniMaxH3_LatentUpscaler after generation when higher resolution or additional detail is required. --- # Notes - FLF = First-Last-Frame video generation. - R2V = Reference-to-Video generation. - Motion Context is currently available only in the FLF workflow. - Lightx2v LoRA is used for accelerated generation. - Turbo-LoRA is experimental. - Sol-Attn and Spectrum acceleration depend on hardware and software compatibility. - Latent upscaling increases output resolution after the initial generation stage. - Output quality may vary depending on sampling steps, LoRA strength, resolution, Motion Context settings, and acceleration configuration. - Combining multiple acceleration methods may require careful tuning of sampling steps and LoRA weights. --- # Additional Resources ## MiniMax-H3 https://huggingface.co/Comfy-Org/MiniMax-H3 ## Sol-Attn https://github.com/kijai/ComfyUI-SolAttn_triton ## Spectrum MiniMax-H3 https://github.com/xmarre/ComfyUI-Spectrum-MiniMax-H3 ## H3 Motion Context https://github.com/NikoDemon80/ComfyUI-H3-Motion-Context ## Lightx2v LoRA https://huggingface.co/Kijai/MiniMax-H3_comfy ## MiniMax-H3-Turbo-Lora-ComfyUI https://huggingface.co/drbaph/MiniMax-H3-Turbo-Lora-ComfyUI ## MiniMax-H3 Latent Upscaler https://github.com/Tr1dae/ComfyUI-MiniMaxH3_LatentUpscaler --- # License Please follow the licenses of: - Comfy-Org/MiniMax-H3 - ComfyUI - ComfyUI-SolAttn_triton - ComfyUI-Spectrum-MiniMax-H3 - ComfyUI-H3-Motion-Context - ComfyUI-MiniMaxH3_LatentUpscaler - Kijai/MiniMax-H3_comfy - MiniMax-H3-Turbo-Lora-ComfyUI - Any additional custom nodes, LoRA, or third-party models used with these workflows. ```