Spectrum MiniMax H3 v0.1.1

Spectrum MiniMax H3 v0.1.1

Corrective release for the ComfyUI custom-node entry point.

Fixed

• Load the bundled comfyui_spectrum_h3 implementation through the custom-node package itself, matching ComfyUI's isolated directory loader.
• Preserve direct source-checkout imports used by development and packaging checks.
• Add a regression test that loads the node from an isolated, hyphenated custom-node directory without placing that directory on sys.path.

Highlights

• Forecasts selected post-transformer H3 features while preserving the native current-step output heads, reconstruction, sigma mapping, and return structure.
• Keeps runtime and history state isolated per model clone and rolls incomplete split-branch transactions back to a complete native step.
• Supports native Euler and Euler ancestral sampling, with explicit native fallback for unsupported samplers, incompatible topology, invalid forecasts, and multi-GPU parallel sampling.
• Bounds retained history on CPU and streams forecast accumulation in chunks to avoid persistent full-feature FP32 coefficient or right-hand-side tensors.
• Leaves the separate FLUX-focused ComfyUI-Spectrum-Proper repository unchanged.

Validation

• GitHub Actions passes against native ComfyUI commit e377e263049f9338b4d12a3dd417b36ae62948ff.
• Automated tests cover forecasting mathematics, scheduling, rollback, clone isolation, the actual ComfyUI loader shape, native-path equivalence, and zero transformer-block execution on forecast steps.
• CodeRabbit review feedback was evaluated and all review threads were resolved.

Current limits

Full MiniMax H3 checkpoint generation, reference modes, decoded output quality, audiovisual synchronization, long-duration memory use, VRAM/RSS peaks, and end-to-end speedup remain unverified. Presets and performance expectations are provisional.