Ratelimits - Wav 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 10 parallel audio creation requests.
What This Means: You can send up to 10 concurrent requests total 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.

Sound Generator Free Period

Limit: During October 2026, Sound Generator is free, up to 500 generations per day and 21 generations per hour.

Audio Length Limits

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

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