Ratelimits - MusicGPT API Documentation

Category	Features	Free Plan	Plus Plan	Pro Plan
Audio Generations	Music AI Inpaint Remix Extend Sing Over Instrumental	1 parallel requests	3 parallel requests	10 parallel requests
Audio Utilities	File Convert Audio to MIDI Audio Cutter Audio Speed Changer Audio Mastering Key/BPM Extraction	1 parallel requests	3 parallel requests	10 parallel requests
Audio Enhancements	Text_To_Speech Voice_Changer Extraction Cover Denoising Deecho Dereverb Sound_Generator Audio_Transcribe Lyrics_Generator	1 parallel requests	3 parallel requests	10 parallel requests
Get by ID	Get by ID	20 API calls per minute	200 API calls per minute	500 API calls per minute

Rate Limit

Limit: Maximum parallel audio creation requests per plan - 1 on Free, 3 on Plus, and 10 on Pro.
What This Means: You can send up to your plan’s number of concurrent requests across all features combined for a given category. If you reach this limit, you must wait for some requests to complete before sending additional requests. Requests to other categories are not affected by this limit and can be sent independently.

Free Stem Presets

Limit: During November 2026, Extraction requests that use stem_preset are free on paid plans, up to 10 per UTC clock hour and 100 per UTC day. Requests past these limits are not rejected. They are charged at the usual rates. See the free stem presets guide.

Audio Length Limits

Maximum length of the input audio you can send, per feature:

Feature	Max input audio length	Max input file size
Remix, Extend, Inpaint, Sing Over Instrumental	4 minutes	80 MB
All other features	8 minutes	80 MB