h3lite
MiniMax H3 Local Video
Use this skill to turn a user's local computer into a reproducible MiniMax H3 audio-video workstation and to generate short clips. The validated primary route is Windows + NVIDIA + ComfyUI; macOS Apple Silicon is a community/experimental alternative, not an equivalent tested backend. Treat platform selection, path selection, hardware-aware planning, prompt writing, execution, timing, and verification as one workflow. The default is the validated fast route; other modes must be chosen explicitly or justified by a time budget.
Platform scope and routing
Detect the operating system and accelerator before giving installation commands or model links. Do not give CUDA, Windows virtual-environment, .bat, or Windows path instructions to a macOS user.
| Platform | h3lite status | Guidance |
|---|---|---|
| Windows + NVIDIA CUDA | Primary, locally validated | Use the ComfyUI/H3 Lite fast path and the Windows doctor/planner/preflight scripts. |
| macOS Apple Silicon | Community alternative, not h3lite-equivalent | Explain that the documented ComfyUI route is not validated on Metal. Offer the MLX/mmh3turbo route as an optional external alternative, with its own weights, commands, and timing. |
| macOS Intel | Not recommended | Do not promise local H3 generation; suggest a hosted/API or another backend. |
| Linux + NVIDIA | Unverified | The model concepts may transfer, but Windows paths, packaged nodes, and timings do not. Require an explicit experimental choice. |
For a non-Windows user, preserve the useful cross-platform guidance (prompt structure, 32-pixel canvas alignment, low-resolution preview, disk/log/output checks), but label every resource and timing as platform-specific. A community implementation that can run H3 on a Mac is evidence for feasibility, not evidence that this ComfyUI skill supports Metal.
The Mac alternative described in the project notes uses MLX/Metal and a third-party mmh3turbo package. If a Mac user explicitly chooses that route, point them to the author's community bundle and package (uvx mmh3turbo), and state that these are external resources with independent licensing, updates, and validation. It may reduce the download footprint with GGUF/4-bit bundles, but it is outside this skill's tested component sets. Do not silently install it, mix its weights with ComfyUI models, or present its 30–43 minute 5-second 720p timings as Windows benchmarks.