lucataco/ace-step

A Step Towards Music Generation Foundation Model text2music

Capabilities

Seed

Cost

Community model (estimated from hardware time)

Input Parameters

Name	Type	Description	Default	Constraints
`tags` *	string	Text prompts to guide music generation, e.g., 'epic,cinematic'	`—`	—
`duration`	number	Duration of the generated audio in seconds. -1 means a random duration between 30 and 240 seconds.	`60`	min: 1, max: 240
`granularity_scale`	number	Omega scale for APG guidance, or similar for other CFG types.	`10`	min: -100, max: 100
`guidance_interval`	number	Guidance interval.	`0.5`	min: 0, max: 1
`guidance_interval_decay`	number	Guidance interval decay.	`0`	min: 0, max: 1
`guidance_scale`	number	Overall guidance scale.	`15`	min: 0, max: 30
`guidance_type`	string	Guidance type for CFG.	`"apg"`	apg cfg cfg_star
`lyric_guidance_scale`	number	Guidance scale for lyrics.	`0`	min: 0, max: 10
`lyrics`	string	Lyrics for the music. Use [verse], [chorus], and [bridge] to separate different parts of the lyrics. Use [instrumental] or [inst] to generate instrumental music	`—`	—
`min_guidance_scale`	number	Minimum guidance scale.	`3`	min: 0, max: 100
`number_of_steps`	integer	Number of inference steps.	`60`	min: 10, max: 200
`scheduler`	string	Scheduler type.	`"euler"`	euler heun
`seed`	integer	Random seed. Set to -1 to randomize.	`-1`	—
`tag_guidance_scale`	number	Guidance scale for tags (text prompt).	`0`	min: 0, max: 10

tags required string

Text prompts to guide music generation, e.g., 'epic,cinematic'

duration number

Duration of the generated audio in seconds. -1 means a random duration between 30 and 240 seconds.

Default: 60 min: 1, max: 240

granularity_scale number

Omega scale for APG guidance, or similar for other CFG types.

Default: 10 min: -100, max: 100

guidance_interval number

Guidance interval.

Default: 0.5 min: 0, max: 1

guidance_interval_decay number

Guidance interval decay.

Default: 0 min: 0, max: 1

guidance_scale number

Overall guidance scale.

Default: 15 min: 0, max: 30

guidance_type string

Guidance type for CFG.

Default: "apg"

apg cfg cfg_star

lyric_guidance_scale number

Guidance scale for lyrics.

Default: 0 min: 0, max: 10

lyrics string

Lyrics for the music. Use [verse], [chorus], and [bridge] to separate different parts of the lyrics. Use [instrumental] or [inst] to generate instrumental music

min_guidance_scale number

Minimum guidance scale.

Default: 3 min: 0, max: 100

number_of_steps integer

Number of inference steps.

Default: 60 min: 10, max: 200

scheduler string

Scheduler type.

Default: "euler"

euler heun

seed integer

Random seed. Set to -1 to randomize.

Default: -1

tag_guidance_scale number

Guidance scale for tags (text prompt).

Default: 0 min: 0, max: 10

Version: 280fc4f9ee50 Updated: 2/26/2026 107.5K runs