Create cinematic video with synced native audio through unified references and accelerated eight-step sampling.Who it's for: creators who want this pipeline in ComfyUI without assembling nodes from scratch. Not for: one-click results with zero tuning - you still choose inputs, prompts, and settings.<h3 id="open-preloaded-workflow-on-runcomfy">Open preloaded workflow on RunComfy</h3><a target="_blank" rel="ugc" href="https://www.runcomfy.com/comfyui-workflows/minimax-h3-8-step-acceleration-all-in-one-comfyui-workflow?utm_source=civitai&amp;utm_medium=referral">Open preloaded workflow on RunComfy (browser)</a>Why RunComfy first - Fewer missing-node surprises - run the graph in a managed environment before you mirror it locally. - Quick GPU tryout - useful if your local VRAM or install time is the bottleneck. - Matches the published JSON - the zip follows the same runnable workflow you can open on RunComfy.When downloading for local ComfyUI makes sense - you want full control over models on disk, batch scripting, or offline runs.How to use (local ComfyUI) 1. Load inputs (images/video/audio) in the marked loader nodes. 2. Set prompts, resolution, and seeds; start with a short test run. 3. Export from the Save / Write nodes shown in the graph.Expectations - First run may pull large weights; cloud runs may require a free RunComfy account.<hr /><h3 id="overview">Overview</h3>MiniMax H3 8-Step Acceleration is an all-in-one ComfyUI workflow for creating cinematic video with synchronized native audio. Its unified reference node supports images, videos, paired video-audio, and standalone audio, while the ready-to-run default uses one image and a motion prompt. A Turbo LoRA and 8-step sampling accelerate generation, with tested settings designed to run reliably on a 48 GB GPU.Important nodes:<h2 id="key-nodes-in-the-comfyui-minimax-h3-8-step-acceleration-workflow">Key nodes in the ComfyUI MiniMax H3 8-Step Acceleration workflow</h2><ul><li><code>MiniMaxH3Unified</code> (#212). The central All-in-One multimodal reference hub for MiniMax H3. It brings image, video, video-audio, standalone audio, prompt, sizing, and duration controls into one node, allowing different H3 reference tasks to use the same accelerated generation pipeline.</li><li><code>H3SigmaRefiner</code> (#209). Adjusts the schedule to favor the parts of the trajectory where H3 benefits most. If you need crisper details at the same speed, add a little refinement; if you prioritize maximum throughput, keep it lean.</li><li><code>SplitSigmas</code> (#197). Splits the compact schedule into a two-pass plan. With an 8-step schedule, the midpoint split balances speed and quality; moving the split allocates more steps to either structure or detail.</li><li><code>MiniMaxH3SigmaShift</code> (#207). Offsets sigma ranges for video and audio so they converge cleanly under short schedules. Leave the provided shifts unchanged unless you understand their effect on synchronization and stability.</li><li><code>LoraLoaderModelOnly</code> (#167). Applies the LightX2V Turbo LoRA. Lower strength softens the Turbo effect for gentler motion; higher strength can increase snap but may over-accentuate textures.</li><li><code>MinimaxH3LatentUpscaler3D</code> (#226). Increases spatial detail between passes while keeping the audio latent intact. Use a modest <code>mode.scale</code> for 720p-type outputs or a larger multiplier for 1080p when VRAM allows.</li><li><code>VHS_VideoCombine</code> (#189). Handles final muxing and export. Adjust <code>frame_rate</code>, set a filename prefix, and optionally use trimming or ping-pong looping for previews.</li></ul><h3 id="notes">Notes</h3>MiniMax H3 8-Step Acceleration in ComfyUI | MiniMax H3 All In One - see <a target="_blank" rel="ugc" href="https://www.runcomfy.com/comfyui-workflows/minimax-h3-8-step-acceleration-all-in-one-comfyui-workflow?utm_source=civitai&amp;utm_medium=referral">RunComfy page</a> for the latest node requirements.

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