ComfyUI Node
arkennemasis fal · MiniMax Music 3 · $0.002/s
MiniMax Music 3 is a high-performance music generation model for creating complete songs up to five minutes long Pricing (from fal, 2026-09-29): $0.002 per second (fal's billing unit). Model page: https://fal.ai/models/minimax/music-3 Key: FAL_KEY in the .env next to run_nvidia_gpu.bat. Results are saved in output/fal/minimax_music-3/.
arkennemasis fal · MiniMax Music 3 · $0.002/s
- audio
- audio_path
- seed
- duration
- info
◄prompt►
◄lyrics►
◄duration60.00►
◄seed-1►
◄num_inference_steps30►
◄guidance_scale1.70►
◄max_cost_usd20.0►
◄reuse_identical_runtrue►
◄extra_json►
◄max_concurrent1►
Categoryarkennemasis/fal/Audio/MiniMax
Inputs (10)
| Name | Type | Default | Description |
|---|---|---|---|
| prompt | STRING | Music description: style, mood, vocals, instrumentation and arrangement. For precise control use a Structured Caption with global metadata (genre, BPM, key, emotional progression), vocal details, and a section-by-section arrangement. | |
| lyrics | STRING | The lyrics to sing. Structure tags such as [intro], [verse], [pre-chorus], [chorus], [post-chorus], [bridge], [instrumental], [solo] and [outro] must each be on their own line; text on the same line as a leading tag is dropped by the model's input contract. | |
| duration | FLOAT | 60.001–300 | Upper bound on the generated audio length in seconds. The model may stop earlier; the actual duration is returned in the output. |
| seed | INT | -1-1–2147483647 | Random seed for reproducibility. If not provided, a random seed will be used. -1 leaves it to the model. |
| num_inference_steps | INT | 301–100 | Number of flow-matching Euler steps per 8-second denoising chunk. More steps improve quality at the cost of speed. |
| guidance_scale | FLOAT | 1.700–20 | Classifier-free guidance scale of the flow-matching stage. |
| max_cost_usdopt | FLOAT | 20.00–100000 | Safety cap. If the estimated cost of this run is above this many US dollars the node stops BEFORE sending anything to fal. 0 = no cap. |
| reuse_identical_runopt | BOOLEAN | true | If these exact inputs (the settings AND the same pictures/clips/audio) were already paid for and the files are still in output/fal, return them instead of paying again - also after a ComfyUI restart. Turn off for a fresh take with the same settings. |
| extra_jsonopt | STRING | Advanced: a JSON object merged into the request last, for any fal field this node has no box for. Example: {"seed": 7}. Leave empty normally. | |
| max_concurrentopt | INT | 11–32 | How many paid fal calls may run at the same time in one run, across every fal node. 1 (default) = one after another. This node starts its paid part only while fewer than this many fal calls are running. Once any fal node fails, the ones still waiting are not started, so nothing more is billed. |
Outputs (5)
| Name | Type | Description |
|---|---|---|
| audio | AUDIO | — |
| audio_path | STRING | — |
| seed | INT | — |
| duration | FLOAT | — |
| info | STRING | JSON: request id, cost estimate, saved files and fal's full answer. |