ComfyUI Node
Apply HyperFlow H3 (MiniMax-H3 8-Step)
HyperFlow: 8-step LoRA + two-time (t, r) conditioning for MiniMax-H3. Apply between the model loader and the sampler, then feed the SIGMAS output into SamplerCustomAdvanced in place of a scheduler. Optionally stack the core Model Attention Backend and Model Sparse Attention nodes on top (sol-attn: start_percent 0.16, dense_blocks "0,1", tau 1.0).
Apply HyperFlow H3 (MiniMax-H3 8-Step)
- model
- model
- sigmas
◄hyperflow_file▾►
◄strength1.00►
◄lora_modebypass►
◄variantauto►
◄download_if_missingfalse►
◄verbosefalse►
◄experimental_curve_refitfalse►
Categorymodel_patch/video
Inputs (8)
| Name | Type | Default | Description |
|---|---|---|---|
| model | MODEL | The MiniMax-H3 diffusion model to patch. Chain once, between the model loader and the sampler. | |
| hyperflow_file | COMBO | The ComfyUI-converted HyperFlow weights (models/hyperflow). Get the converted build from the HyperFlow Hugging Face repo: one .safetensors, ComfyUI module paths, no on-the-fly conversion. | |
| strength | FLOAT | 1.000–2 | Adapter strength. 1.0 is the released model. |
| lora_mode | COMBO | bypass | bypass (default): LoRA applied at run time -- sharpest, matches the reference's unmerged bf16 branches. merge: folded into the weights -- lowest VRAM, softer on quantized bases. |
| variant | COMBO | auto | Which converted build to fetch when downloading: auto (default) matches the detected base model; full = non-pruned base (the released model); pruned = backbone-only build for pruned/curve bases. Ignored when the file is already on disk. |
| download_if_missing | BOOLEAN | false | Download the chosen variant from the configured Hugging Face repo (drbaph/Hyperflow-Comfyui) into models/hyperflow when no weights file is there. Fetches exactly the published .safetensors -- nothing else. Requires internet. |
| verbose | BOOLEAN | false | Log the applied modules and the per-step (t, r) context. |
| experimental_curve_refitopt | BOOLEAN | false | Experimental checkpoint-bound conditioning fit. Exact file match applies silently; byte-different copies of the fitted base/adapter (mirrors, HF downloads) apply best-effort with a warning. Needs strength 1 and the default gate/sigmas; anything unknown uses backbone only. |
Outputs (2)
| Name | Type | Description |
|---|---|---|
| model | MODEL | — |
| sigmas | SIGMAS | — |