ComfyUI Node
H3 Core Compatibility (alpha)
EXPERIMENTAL (alpha), new 2026-09-04. Reads the installed ComfyUI source and applies the H3 core fixes this graph needs while they are still pending upstream - today that is the #15988 denoise-mask velocity conversion. No-op on a core that already has them, on pre-#15375 cores, and on non-H3 models; refuses (with a warning) when another pack owns MiniMaxH3Model.forward, because scaling the velocity twice is worse than not scaling it. H3StreamedBlocks calls the same helper by itself; this node is for graphs without it, such as H3TemporalInsert on stock H3.
H3 Core Compatibility (alpha)
- model
- model
- report
◄mask_velocity_15988auto►
◄scopeboth►
CategoryMAINodes/alpha
Inputs (3)
| Name | Type | Default | Description |
|---|---|---|---|
| model | MODEL | the H3 model this pass samples with. Wire it like any model patch, before the sampler. | |
| mask_velocity_15988opt | COMBO | auto | auto = install the #15988 velocity correction only when the running core is detected as 'compat_needed'. A core that already has the fix, a core older than #15375, and any core whose forward cannot be attributed all get nothing. off / on force the arm for an A/B. |
| scopeopt | COMBO | both | which stream the correction applies to. A chain graph can carry three fractional paths at once (audio_strength, the prefix release ramp, drift control's per-step mask); use this to say which one moved the result. |
Outputs (2)
| Name | Type | Description |
|---|---|---|
| model | MODEL | — |
| report | STRING | — |