A ready-to-run ComfyUI workflow for MiniMax Music 3, the new open-weights AI music model — one of the best local Suno alternatives out right now. Feed it lyrics and a music description and it generates a complete song with vocals, instruments, and full structure, up to 5 minutes, in 32 kHz stereo. Runs locally, no subscription, and light enough for ~8GB VRAM territory.The example workflow is attached to this post — drag the <code>.json</code> into ComfyUI and load your three models.<h2 id="required-models">Required Models</h2>Update ComfyUI to 0.33.0+ first. Three files from the <a target="_blank" rel="ugc" href="https://huggingface.co/Comfy-Org/MiniMax-Music-3">Comfy-Org/MiniMax-Music-3</a> repo:<ul><li>minimax_music3_dit_fp16.safetensors → <code>models/unet/</code> (I recommend FP16 over the INT8 for quality; INT8 exists if you're tight on space)</li><li>minimax_music3_text_encoder_pruned_int8_convrot.safetensors → <code>models/clip/</code></li><li>minimax_music3_dav.safetensors → <code>models/vae/</code></li></ul>If the model doesn't show in the node dropdowns, a file is in the wrong folder — that's the usual cause.<h2 id="writing-the-caption">Writing the Caption</h2>Output quality lives in the caption. Write it in three parts — Global metadata (genre, BPM, key, mood, production), Vocal details (gender, tone, delivery), and Arrangement (how sections evolve) — and tag your lyrics with [Verse] / [Chorus] on their own lines. Easiest approach right now is to have an LLM format your idea into that structure while keeping your lyrics intact.<h2 id="notes">Notes</h2><ul><li>FP16 for final renders — noticeably better than INT8 if you have the VRAM.</li><li>Keep first generations short to dial in the caption before committing to a full track.</li><li>Generation time scales with length and GPU.</li><li>Licensing: MiniMax Music 3 uses MiniMax's community license (not fully open). Free for personal use; if you monetize, you're asked to credit "MiniMax-Music3" and disclose AI-generated audio. Full terms on the HF page.</li></ul><hr /><h2 id="more-from-me">More From Me</h2>If you're into local AI video too, check out my MiniMax H3 work — the sister model that does text/image to video with native audio:<ul><li>MiniMax H3 ComfyUI Workflow + Turbo LoRAs (4-8 step speedup, native audio) — on my Patreon: <a target="_blank" rel="ugc" href="https://www.patreon.com/TheLocalLab">https://www.patreon.com/TheLocalLab</a></li><li>MiniMax H3 RunPod Template (run it in the cloud, no local GPU): <a target="_blank" rel="ugc" href="https://get.runpod.io/Minimax-H3-ComfyUI">https://get.runpod.io/Minimax-H3-ComfyUI</a></li></ul>More free workflows, one-click installers, and tutorials: ▶️ YouTube - <a target="_blank" rel="ugc" href="https://www.youtube.com/@TheLocalLab">https://www.youtube.com/@TheLocalLab</a> 🎨 Patreon - <a target="_blank" rel="ugc" href="https://www.patreon.com/TheLocalLab">https://www.patreon.com/TheLocalLab</a> 🛒 <a target="_blank" rel="ugc" href="https://www.locallabdigest.com">https://www.locallabdigest.com</a>If this workflow helped, a ❤️ or review is appreciated!

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