Model reference · open weights
MiniMax-Music3-Serve is an open-weight audio or speech model from ddalcu, listed in the AxForge catalogue. AxForge can bring it up on EU-owned hardware for you on request — with the licence handled where one is required.
About
MiniMax Music 3 for mlx-serve (8-bit) MiniMax-Music3 converted for mlx-serve's native Zig + MLX engine. Full songs with sung lyrics at 44.1 kHz stereo, generated locally on Apple Silicon. Quantization: affine 8-bit, group 64, on every real matmul (LLM, depth decoder, DiT, lmhead). Kept dense on purpose: the embedding tables (gather reads), the condition encoder and the whole vocoder (VAE-class precision). Worst per-tensor reconstruction error 1.48% RMS. 13 GB on disk instead of the 57 GB upstream repo (which ships its weights twice). Engine parity against the fp32 reference on these exact weights: prefill cosine 0.9999, condition encoder 0.999999, DiT velocity 0.999, vocoder 1.000000. The autoregressive stage runs about 44 ms per frame on an M-series Mac, so a one-minute song takes roughly a minute of LLM time plus the diffusion pass. Run it Download MLX Core.app, open the Music tab and pick MiniMax Music 3. Style prompt + lyrics in, WAV out. Over HTTP: Lyrics are required (the model is lyric-conditioned) and structure tags like [verse] or [chorus] go on their own lines. durationseconds (1-360) is an upper bound, the model may end the song earlier. ACE-Step style fields (bpm, keyscale, timesignature, vocallanguage) do not exist on this model. Rebuild from the upstream repo with scripts/convertmusic3weights.py. Weights are covered by the MiniMax-Music3 Community License (see LICENSE, acceptable-use policy included as Exhibit A).
Summarised from the published model card. Read the full card on the HuggingFace links below.
Specifications
| Maker | ddalcu |
|---|---|
| Type | Audio & music |
| Variants | 1 |
| Runs with | mlx-serve |
| Based on | MiniMaxAI/MiniMax-Music3 |
| Released | 2026-08-13 |
| Popularity | 1k downloads / month |
| Likes | 5 |
| Licence | Commercial licence needed |
How it works
Variants
Open weights ship in several sizes and precisions. One page, all the variants — pick the one that fits your GPU. VRAM figures are estimates from model size.
| Variant | Params | Precision | VRAM | Fits 16 GB | Weights |
|---|---|---|---|---|---|
| MiniMax-Music3-MLX-Serve-8bit | — | MLX | — | — | Weights ↗ |
Using it via the API
Once AxForge deploys minimax-music3-serve for you, it answers on the OpenAI-compatible API — the same base URL and keys as every other model. (minimax-music3-serve below is illustrative; you get the exact model name on deployment.)
$ curl -sS https://api.axforge.ai/v1/audio/transcriptions \ -H "Authorization: Bearer $AXFORGE_API_KEY" \ -F model="minimax-music3-serve" -F file=@audio.mp3
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Licence
The weights are open but its licence needs a commercial agreement for business use. AxForge can arrange that licence and host the model for you — you pay AxForge, we settle with the model’s maker. Ask us for a quote. Read the licence ↗