Head-to-head · AI Song Extenders
Sonauto AI vs AI Song
Sonauto AI leads on 1 check, AI Song on 2, and 5 are even. Who comes out ahead on the 8 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Lowest starting priceAI Song · $9.99/mo
- Free planboth
Sonauto AI and AI Song score identically on our rubric (8.1 out of 10) for ai song extenders; Sonauto AI sits at #5 and AI Song at #8 in our editorial ranking, so the choice comes down to fit.
AI Song is cheaper to start at $9.99/mo against $10/mo. AI Song offers section inpainting; Sonauto AI doesn't publish it. Sonauto AI offers wav export; AI Song doesn't publish it.
Sonauto AI is the better fit for guided song sections and MIDI-aware workflows. AI Song is the better fit for songmakers needing extension and section replacement.
- Sonauto AI fits best
Guided song sections and MIDI-aware workflows
- AI Song fits best
Songmakers needing extension and section replacement
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Side by side
| Feature | Sonauto AI 8.1/10 Visit ↗ | AI Song 8.1/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 8.1 | 8.1 |
| Ranking | #5 in AI Song Extenders | #8 in AI Song Extenders |
| Best for | Guided song sections and MIDI-aware workflows | Songmakers needing extension and section replacement |
| Pricing model | Free plan + paid | Free plan + paid |
| Starting price | $10/mo | $9.99/mo (best) |
| Free plan | ✓ | ✓ |
| Free trial | — | — |
| Deployment | Cloud | Cloud |
| Platforms | Web | Web |
| Support | Email, Tickets | |
| Built for | Solo, Small business | Solo, Small business, Mid-market |
| Features Sonauto AI 5/6 · AI Song 5/6 | ||
| Section inpainting | Not published | ✓ (best) |
| Audio upload | ✓ | ✓ |
| WAV export | ✓ (best) | Not published |
| Stem export | ✓ | ✓ |
| Commercial licence | ✓ | ✓ |
| Style reference | ✓ | ✓ |
| Specs | ||
| Max extension length | Not published | Not published |
| Our review | ||
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| Our verdict | 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 → |
AI Song is a browser-based music generator for songmakers who want to create complete tracks from prompts, lyrics, or moods, then continue or reshape existing audio. Its extension workflow accepts MP3, WAV, M4A, OGG, and WebM uploads up to… Read the review → |
Strengths and trade-offs
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
AI Song — where it wins
- Continues uploaded tracks from text directions
- Replaces sections and adds vocal or instrumental parts
- Pro and Ultra plans provide separated stem downloads
Where it doesn't
- Uploads are limited to 25 MB
- Extension length cannot be selected
- Documented downloads are MP3 and stems, not WAV
- 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 → - AI Song8.1/10 · Free plan · paid from $9.99/mo
A focused browser tool for extending, remixing, and reshaping uploaded songs.
Visit AI SongFull verdict →
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Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026