Head-to-head · AI Song Extenders
SoMusicAI vs Sonauto AI
SoMusicAI leads on 0 checks, Sonauto AI on 0, and 7 are even. Who comes out ahead on the 7 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Free planboth
SoMusicAI and Sonauto AI score identically on our rubric (8.1 out of 10) for ai song extenders; SoMusicAI sits at #4 and Sonauto AI at #5 in our editorial ranking, so the choice comes down to fit.
SoMusicAI is the better fit for creators extending tracks and exporting WAV masters. Sonauto AI is the better fit for guided song sections and MIDI-aware workflows.
- SoMusicAI fits best
Creators extending tracks and exporting WAV masters
- Sonauto AI fits best
Guided song sections and MIDI-aware workflows
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Side by side
| Feature | SoMusicAI 8.1/10 Visit ↗ | Sonauto AI 8.1/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 8.1 | 8.1 |
| Ranking | #4 in AI Song Extenders | #5 in AI Song Extenders |
| Best for | Creators extending tracks and exporting WAV masters | Guided song sections and MIDI-aware workflows |
| Pricing model | Free plan + paid | Free plan + paid |
| Starting price | $10/mo | $10/mo |
| Free plan | ✓ | ✓ |
| Free trial | — | — |
| Deployment | Cloud | Cloud |
| Platforms | Web | Web |
| Support | ||
| Built for | Solo, Small business, Mid-market | Solo, Small business |
| Features SoMusicAI 5/6 · Sonauto AI 5/6 | ||
| Section inpainting | Not published | Not published |
| Audio upload | ✓ | ✓ |
| WAV export | ✓ | ✓ |
| Stem export | ✓ | ✓ |
| Commercial licence | ✓ | ✓ |
| Style reference | ✓ | ✓ |
| Specs | ||
| Max extension length | Not published | Not published |
| Our review | ||
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| Cons |
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| Our verdict | SoMusicAI is a browser-based AI music workspace for creators who want to extend existing tracks as well as generate new songs. Its extender works with uploaded audio or compatible Suno-class tracks from a user library. Users can choose a… Read the review → |
Sonauto AI is a browser-based music creation and editing service for people who want to extend a track by shaping what comes next. Its extension tool starts from a point the user selects in an uploaded MP3 or a song in the Sonauto library,… Read the review → |
Strengths and trade-offs
SoMusicAI — where it wins
- Choose a continuation point on the waveform and preserve saved parameters.
- Upload MP3, WAV, M4A, OGG, or FLAC audio for extension.
- Export WAV masters and generate vocal, instrumental, or multi-stem separations.
Where it doesn't
- Available only on the web.
- Paid annual subscriptions start at $10 per month, billed annually.
- The extender accepts source audio up to eight minutes.
Sonauto AI — where it wins
- Continue from a selected point in an upload or library track
- Direct intros, bridges, breaks, outros or longer sections
- Paid plans include vocal removal, stem splitting and MIDI drafts
Where it doesn't
- Free songs are public by default and kept in cloud storage for 30 days
- Song extension and MP3/WAV downloads require a paid plan
- Commercial-use rights apply only to eligible annual-plan generations
- SoMusicAI8.1/10 · Free plan · paid from $10/mo (annual)
A flexible browser-based extender with waveform selection, stems, and WAV downloads.
Visit SoMusicAIFull verdict → - Sonauto AI8.1/10 · Free plan · paid from $10/mo (annual)
A browser-based song extender with section directions, stem tools and MIDI drafts.
Visit SonautoFull verdict →
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Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026