FlowMusic API v1
June 3, 2026 (August 12, 2026)
This is the experimental API for Google Flow Music by Google Labs, powered by the Lyria music models. Flow Music was formerly Producer AI, and originally Riffusion.
Two models are available through the model parameter on POST /music and POST /music/edit — lyria-3.5, the current flagship, and lyria-3-pro, which stays the default so existing integrations keep rendering exactly what they rendered before.
Flow Music turns a text prompt, mood, or lyric idea into a complete, fully-produced song up to ~3 mins long (5+ with extend) — vocals, melody, and arrangement — using Lyria. It also covers (restyles) existing songs, adjusts lyrics in place, extends or replaces sections, and applies audio effects. Each generation returns up to two clips (an A/B pair).
Sign in to flowmusic.app with your Google account. See the Flow Music pricing page for plans and credit allowances.
A song costs about $0.008–$0.013 on paid plans (see the cost calculator below for details), vs $0.08 per song on Google’s official Lyria 3 Pro API. Roughly 6–10× cheaper, and includes cover, remix, extend/replace, effects, and stem-splitting. Downloads (mp3, wav, m4a, and stems) are free.
💲 Cost calculator
Each generation costs ~5 to 10 credits and returns one or two songs (5 credits per song). All plans include daily top-up credits, so even Free generates a little each day. Max concurrent is how many generations the API runs at once per account (the maxJobs cap).
| Plan | Price month | Credits month | ~Songs month | ~Cost / song | Max concurrent |
|---|---|---|---|---|---|
| Free | $0 | daily top-up only | — | free daily credits | 2 |
| Starter monthly | $8 | 3,000 | ~600 | ~$0.013 | 8 |
| Plus monthly | $24 | 10,000 | ~2,000 | ~$0.012 | 12 |
| Member monthly | $64 | 30,000 | ~6,000 | ~$0.011 | 16 |
| Starter yearly | $6 | 3,000 | ~600 | ~$0.010 | 8 |
| Plus yearly | $18 | 10,000 | ~2,000 | ~$0.009 | 12 |
| Member yearly | $48 | 30,000 | ~6,000 | ~$0.008 | 16 |
Yearly rows show the per-month price when billed annually (~25% off).
You can configure up to 50 Flow Music accounts per single useapi.net account.
📦 Postman collection
🤖 LLM-friendly API spec Feed this to your LLM to build integrations
Articles:
- How to Generate AI Music with Lyria 3 Pro via the Flow Music API
- AI Music APIs Compared: Mureka vs MiniMax vs ElevenLabs vs Lyria 3 Pro
- AI Music APIs One Generation Later: MiniMax Music-3.0 vs Lyria 3.5 vs Mureka V9.5
Examples:
Developer Community:
Discord Server
Telegram Channel