TL;DR
Riffusion no longer exists under that name. The app became Producer.ai in July 2025, Google acquired the company on February 24, 2026, and in April 2026 the product was renamed Google Flow Music. riffusion.com and producer.ai now redirect there. It runs on Google's Lyria models, and old generations stopped being available on February 20, 2026. So the first "alternative" is Riffusion's own successor; seven more follow for a different sound, finishing tools or clearer download rules. For full songs with vocals that you keep editing after the first take, that is what we built Suno AI Music for: 16 free credits when you sign up, two songs for every 10-credit generation, and extend, cover, replace-section and vocal-split tools on every track.
In this guide
- What happened to Riffusion
- How the alternatives compare
- The eight alternatives
- Which one for which job
- FAQ
What happened to Riffusion
Riffusion has had three lives in under four years:
- December 15, 2022: an open-source experiment. Seth Forsgren and Hayk Martiros fine-tuned Stable Diffusion, an image model, on spectrograms (pictures of sound). The model painted a spectrogram from a text prompt, and an inverse Fourier transform turned that picture back into audio. The short, dreamy loops went viral, and the code went up on GitHub under the MIT licence. That repository,
riffusion-hobby, is still online but marked "no longer actively maintained". - October 2023 to 2025: a consumer song app. The founders raised a $4 million seed round and built Riffusion into a full song generator with vocals. In July 2025 it relaunched as Producer.ai, built around a chat-style "producer" agent.
- 2026: part of Google. Google announced the acquisition on February 24, 2026, and the team joined Google Labs and Google DeepMind. Users were emailed ahead of the switch: from February 20 the service would run on a new set of models, and "all past generations, sessions, models, and media will no longer be accessible". The platform moved to a preview of Lyria 3, with Gemini running the chat. On April 17, 2026 it was renamed Google Flow Music, with new remix tools to replace and extend sections, and on July 29, 2026 it moved to Lyria 3.5.
So songs not downloaded before February 20 are gone from the service, and flowmusic.app is a different engine run by the old team. People searching for a "Riffusion alternative" usually want the old app back (Flow Music), a better song generator, or an open model to run themselves (ACE-Step and Stable Audio below).
How the alternatives compare
| Tool | Full songs with vocals | Download / export | Commercial use | Edit after generating | Entry price |
|---|---|---|---|---|---|
| Google Flow Music (ex-Riffusion) | Yes (Lyria 3.5) | Yes: MP3, WAV, M4A | Check Google's terms; SynthID watermark | Remix: replace and extend sections, stems | Free (daily credits); Starter $8/mo |
| Suno AI Music | Yes | MP3 with any plan or credit pack; WAV from Standard | Standard plan and above | Extend, cover, replace section, vocal split, video | Free (16 credits); plans from $9.99/mo |
| Suno (official) | Yes | Capped: free 7 ever, Pro 20/mo, Premier 60/mo | Paid plans | Studio (Premier), stems | Free; Pro $10/mo |
| Udio | Yes | Disabled since Oct 2025 | n/a while downloads are off | Inside the app only | Free; Standard $10/mo |
| Mureka | Yes | No on free; MP3 on Pro, WAV on Premier | Pro and above | Stems, MIDI, Studio on Premier | Free (4 songs/day); Pro $10/mo |
| ElevenLabs Music | Yes | Yes | Paid plans from Starter | Limited | Starter $6/mo |
| Stable Audio 3 | No, instrumental and SFX | Yes; open weights run locally | Community License (under $1M revenue) | Audio models, not a song editor | Open weights free |
| ACE-Step 1.5 | Yes | Yes, you run it | MIT licence | Cover, repaint, stem extraction | Free, open source |
Prices are the published monthly figures at the time of writing (September 2026); most tools charge less when billed yearly.
The eight alternatives
1. Google Flow Music — Riffusion's direct successor
If you liked Producer.ai's chat-with-a-producer workflow, this is where it went, now on Lyria 3.5 (Google cites better melodies, lyrics and vocals, plus tempo and length control) with section-level remixing to swap a chorus or extend a passage. Plans as of September 2026: Free with daily top-up credits and two generations at a time, Starter $8 a month (3,000 credits, about 600 songs), Plus $24 (10,000, about 2,000) and Member $64 (30,000, about 6,000), all 25% cheaper yearly. Downloads come as MP3, WAV or M4A. Flow Music is also bundled with Google AI Plus, Pro and Ultra subscriptions. Every Lyria track carries Google's SynthID watermark.
Where it falls short: it is a new product whose terms are Google's, and your Riffusion-era songs did not come with you. Read the commercial-use terms before you publish anything.
2. Suno AI Music — songs you keep finishing
We are one of the tools on this list, so here is what we do and what we do not. Suno AI Music generates full songs with vocals and keeps each one in a library with the finishing tools next to it. You can extend a track, cover it into another style, replace one section with new lyrics, split vocals from the instrumental, or render an MP4 music video. Suno v6, v6 Wild and v6 Mini are available on the paid plans. Each generation costs 10 credits and returns two songs, and the 16 credits you get at sign-up are enough to try it.
Plans are Starter $9.99 (800 credits a month), Standard $29.99 (3,000) and Premium $99.99 (12,000); one-time credit packs start at $9.99 for 600 credits that never expire. MP3 downloads come with any plan or credit pack; WAV export and a commercial licence come with Standard and above.
Where we lose: no chat-driven producer agent like Flow Music, and no full DAW like Suno Studio.
3. Suno (official) — the quality reference
Suno's own app is still what most people compare everything else to for songs with vocals. On September 9, 2026 it replaced all its earlier models with a new family trained on licensed music from partners including Warner Music and BMG. Pro is $10 a month (2,500 credits) and Premier $30 (10,000 credits, plus Suno Studio). The limit is downloads. Since September 3, 2026 the free plan gets seven downloads in total, Pro 20 a month and Premier 60. If you release a lot, count those before you commit. Our Suno v6 write-up covers the details.
4. Udio — great sound, but nothing leaves the app
Udio still sounds excellent, but downloads of audio, video and stems have been disabled since October 29, 2025, after its settlement with Universal, and are still off as of September 2026. Plans (Free with 100 credits, Standard $10, Pro $30) buy music you can only play inside Udio. Details in our Udio alternatives guide.
5. Mureka — stems, MIDI and your own voice
Mureka is a full-song generator with a producer's toolkit on its top tier. The free plan gives 4 songs a day with no downloads. Pro is $10 a month ($8 yearly) for 500 songs, MP3 downloads and commercial rights. Premier is $30 a month ($24 yearly) for 2,000 songs, WAV, stems and MIDI, Mureka Studio and voice cloning. If you used Riffusion as a starting point for your own productions, Premier's stems and MIDI make it easy to move a track into a DAW.
6. ElevenLabs Music — the clearest licence
ElevenLabs Music makes vocal or instrumental tracks in many languages from a model trained on licensed data. Commercial use starts at the $6-a-month Starter plan; music draws about 900 credits per minute from the shared pool, so Starter's 30,000 credits cover roughly half an hour. Film, TV, radio and studio games need Enterprise. Pick it when the question is "can this go under a paid ad" — it gives you tracks, not a place to keep editing them.
7. Stable Audio 3 — for people who miss the open-source days
If what you loved about Riffusion was the open model you could run yourself, this is its closest successor. Stability AI released Stable Audio 3.0 on May 20, 2026 as four models. Three of them (Small SFX, Small and Medium) have open weights and run locally, and Medium generates up to 6 minutes 20 seconds. Large is available through the API. It was trained on licensed and Creative Commons audio, and the Community License allows free commercial use for organisations under $1 million in annual revenue. It makes instrumentals and sound design only, with no vocals.
8. ACE-Step 1.5 — open-source songs with vocals
ACE-Step 1.5 is the open-source answer for full songs with vocals: MIT-licensed, usable commercially, and by its team's account trained only on royalty-free material. Beyond text-to-music it does covers, repainting part of a track, stem extraction and composition completion. The 4B-parameter XL variants arrived on April 2, 2026 (about 12 GB of VRAM with offloading); the standard model runs on modest consumer GPUs, and there is a public Hugging Face demo. Less polished than the commercial apps, but free and yours to keep — much like Riffusion in 2022.
Which one for which job
- I just want Riffusion back: Google Flow Music. Same team, new engine.
- Songs with vocals that I keep reworking: Suno AI Music. Use replace section for a weak verse and extend for an ending that comes too soon.
- The best raw song quality, and I only release a few a month: Suno's own app.
- Stems and MIDI to finish in a DAW: Mureka Premier.
- Music for a paid ad: ElevenLabs Music.
- Running a model on my own machine: ACE-Step 1.5 for vocals, Stable Audio 3 for instrumentals.
- Instrumental beds only: our AI instrumental generator or background music generator, or Stable Audio 3 locally.
The Suno prompts guide carries over to every vocal generator here; heading for streaming services, read can you upload AI music to Spotify first.
FAQ
Is Riffusion still available?
Not under that name. It became Producer.ai in July 2025, Google acquired it in February 2026, and since April 2026 it has been Google Flow Music at flowmusic.app. The old riffusion.com and producer.ai addresses redirect there.
Can I get my old Riffusion or Producer.ai songs back?
Probably not from the service. Users were told that from February 20, 2026 "all past generations, sessions, models, and media will no longer be accessible", and were asked to download their work before then. If you saved files locally, those are the copies you have.
Is the original Riffusion model still open source?
Yes. The 2022 spectrogram model and code are still on GitHub under the MIT licence, marked as no longer maintained, and make short lo-fi clips. For current open-source quality, use ACE-Step 1.5 or Stable Audio 3.
Is Google Flow Music free?
There is a free plan with daily top-up credits and two generations at a time. Paid plans start at $8 a month for Starter, and Flow Music is included with Google AI Plus, Pro and Ultra subscriptions.
What is the closest alternative for full songs with vocals?
For raw quality, Suno's own app, as long as its download caps suit you. For generating and then editing songs in one place, Suno AI Music. The 16 credits you get at sign-up cover a first generation that returns two songs.
Which Riffusion alternative can I use commercially?
ElevenLabs Music (paid plans from Starter, with Enterprise needed for film, TV, radio and games), Mureka Pro and above, Suno AI Music on Standard and above, and the open models under their licences: ACE-Step under MIT, and Stable Audio 3 under its Community License.
Final take
Riffusion began as an experiment that painted pictures of sound and played them back; in 2026 it became a Google product. Want that product? Flow Music. Want to run a model yourself, as in 2022? ACE-Step or Stable Audio 3. Want full songs with vocals you can extend, restyle and fix one section at a time? Start on Suno AI Music — the sign-up credits cover your first generation.