comfyui-minimax-h3-blockcache-T8
Opt-in MiniMax H3 probe-prefix BlockCache with finite-safe FL2VA and Ref2VA scoring.
MiniMax H3 Block Cache
DBJ's opt-in MiniMax H3 accepted-path BlockCache with probe-prefix acceptance and finite-safe FL2VA/Ref2VA scoring.
comfy node install minimax-h3-block-cache
What this release does
MiniMaxH3BlockCacheT8 recomputes a transformer prefix, measures current target audio/video change, and reuses the remaining transformer result only when the probe passes. Changed non-finite masks or an absence of jointly finite probe values always force a full refresh.
Community defaults:
| Setting | Default |
| --- | ---: |
| residual_diff_threshold | 0.08 |
| start_percent / end_percent | 0.0 / 1.0 |
| max_consecutive_hits | 2 |
| probe_blocks | 1 |
| cache_device | cpu |
| metric_stride | 8 |
This is approximate caching. It is explicitly opt-in and can change the output even when every safety check passes.
Validated environment: Linux, ComfyUI 0.32.0, comfy-kitchen 0.2.31, and RX 7900 XTX/gfx1100. Other GPUs and ComfyUI versions are unvalidated.
Placement and LoRA
MiniMaxH3INT8FastLoader
→ LoraLoaderBypassModelOnly (optional)
→ ModelAttentionBackend (comfy kitchen attention)
→ MiniMaxH3FastPatch (optional)
→ MiniMaxH3BlockCacheT8
→ MiniMaxH3SigmaShift
→ scheduler / guider / sampler
A constant-strength bypass LoRA is compatible: cache probes and refreshes run with that LoRA active. This release does not include changing LoRA strength in its cache key. Disable BlockCache when using SigmaSync or any other per-sigma LoRA-strength schedule.
Turbo LoRAs normally use only 4 or 8 denoising steps, so BlockCache should remain disabled unless that exact LoRA, schedule, prompt class, and audio/video output have been validated.
Companion packages
Provenance and license boundary
This release is derived from T8mars/comfyui-minimax-h3-blockcache-T8, pinned at 3cd968f11a0b717683b6abb0477c43fe175cb608. See H3_COMMUNITY_R01.md for frozen release details.
The upstream repository does not currently declare a software license. This fork does not add or imply one.