MiniMax H3 users want shorter waits for local video generation
Submitter swyx shared a project providing native Apple silicon inference for the MiniMax H3 video model via Metal, pointing to a repository by antirez.
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In the repliesMeleagris described generating a short clip through ComfyUI on an M5 Pro with a GGUF model, but waiting over an hour. linzhangrun reported a similarly long wait on an M4 Max. antirez discussed ongoing work on the native implementation, including experimental sparse attention, and other replies explored smaller-memory setups. Those accounts use different models, resolutions and generation settings; they do not establish a controlled speedup or a universal minimum-memory requirement.
MiniMax H3 video/audio · ComfyUI and h3-metal on Apple Silicon; timings are not matched tests.
Historical discussion; added to the archive on September 8, 2026. Selected replies, not a community-wide verdict.