Head-to-head · AI Song Extenders
SoMusicAI vs Sonauto AI
SoMusicAI leads on 0 checks, Sonauto AI on 0, and 6 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreSoMusicAI · 8.9/10
- Free planboth
SoMusicAI scores higher on our rubric for ai song extenders: 8.9 against 8.8 out of 10; our editors rank them #4 and #5.
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 8.9/10 Visit ↗ | Sonauto AI 8.8/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 8.9 | 8.8 |
| 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 | $120/yr | $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 checked yet | Not checked yet |
| Audio upload | ✓ | ✓ |
| WAV export | ✓ | ✓ |
| Stem export | ✓ | ✓ |
| Commercial licence | ✓ | ✓ |
| Style reference | ✓ | ✓ |
| Specs | ||
| Max extension length | Not checked yet | Not checked yet |
| Our review | ||
| Pros |
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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
- SoMusicAI8.9/10 · Free plan
A flexible browser-based extender with waveform selection, stems, and WAV downloads.
Visit SoMusicAIFull verdict → - Sonauto AI8.8/10 · Free plan
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 Oct 2026
Last updated · How we research and update






