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H3-metal – Native MiniMax-H3 inference for Apple Silicon

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Native MiniMax-H3 inference for Apple Silicon, a novel open-source implementation directly relevant to AI/ML inference and performance optimization.

Open Source github.com
MiniMax H3 inference engine for Mac computers. Contribute to antirez/h3.c development by creating an account on GitHub.
Summary

Antirez released h3-metal, a native inference engine for MiniMax-H3 video generation models optimized for Apple Silicon via Metal. The project implements prompt-to-video/audio, first/last-frame conditioning, and Ref2VA references, with current work focused on H3-specific Metal performance and memory optimization on M3 Max and M5 Max. The CLI supports interactive sessions with persistent BF16 prompt conditioning, configurable denoising steps, layer skipping, and velocity reuse to balance speed and quality.

Author

antirez