ComfyUI Node
arkennemasis fal · ElevenLabs Music · $0.6/min
Generate high quality, realistic music with fine controls using Elevenlabs Music! Pricing (from fal, 2026-09-29): Your request will cost $0.6 per output audio minute. The audio will be rounded up to the closest minute. For instance, a generation with 30 seconds output will be billed as 1 minute. Model page: https://fal.ai/models/fal-ai/elevenlabs/music Key: FAL_KEY in the .env next to run_nvidia_gpu.bat. Results are saved in output/fal/fal-ai_elevenlabs_music/.
arkennemasis fal · ElevenLabs Music · $0.6/min
- audio
- audio_path
- info
◄prompt►
◄composition_plan►
◄music_length_ms-1►
◄force_instrumentalfalse►
◄respect_sections_durationstrue►
◄output_formatmp3_44100_128►
◄max_cost_usd20.0►
◄reuse_identical_runtrue►
◄extra_json►
◄max_concurrent1►
Categoryarkennemasis/fal/Audio/ElevenLabs
Inputs (10)
| Name | Type | Default | Description |
|---|---|---|---|
| prompt | STRING | The text prompt describing the music to generate Empty leaves it out. | |
| composition_plan | STRING | The composition plan for the music JSON. Empty leaves it out. | |
| music_length_ms | INT | -1-1–600000 | The length of the song to generate in milliseconds. Used only in conjunction with prompt. Must be between 3000ms and 600000ms. Optional - if not provided, the model will choose a length based on the prompt. -1 leaves it to the model. |
| force_instrumental | BOOLEAN | false | If true, guarantees that the generated song will be instrumental. If false, the song may or may not be instrumental depending on the prompt. Can only be used with prompt. |
| respect_sections_durations | BOOLEAN | true | Controls how strictly section durations in the composition_plan are enforced. It will only have an effect if it is used with composition_plan. When set to true, the model will precisely respect each section's duration_ms from the plan. When set to false, the model may adjust individual section durations which will generally lead to better generation quality and improved latency, while always preserving the total song |
| output_format | COMBO | mp3_44100_128 | Output format of the generated audio. Formatted as codec_sample_rate_bitrate. So an mp3 with 22.05kHz sample rate at 32kbs is represented as mp3_22050_32. MP3 with 192kbps bitrate requires you to be subscribed to Creator tier or above. PCM with 44.1kHz sample rate requires you to be subscribed to Pro tier or above. Note that the μ-law format (sometimes written mu-law, often approximated as u-law) is commonly used for |
| 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 (3)
| Name | Type | Description |
|---|---|---|
| audio | AUDIO | — |
| audio_path | STRING | — |
| info | STRING | JSON: request id, cost estimate, saved files and fal's full answer. |