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Head-to-head · AI Song Extenders

SoMusicAI vs Sonauto AI

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score SoMusicAI #4 in AI Song Extenders 8.9/10 Free plan Free plan✓ 5 of 6 features Visit SoMusicAI
Sonauto AI #5 in AI Song Extenders 8.8/10 Free plan Free plan✓ 5 of 6 features Visit Sonauto

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 Email Email
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
  • 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.
  • 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
Cons
  • Available only on the web.
  • Paid annual subscriptions start at $10 per month, billed annually.
  • The extender accepts source audio up to eight minutes.
  • 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
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 →
  1. SoMusicAIAI Song Extenders 8.9Free plan
  2. Sonauto AIAI Song Extenders 8.8Free plan

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

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update