AI music tools can produce songs, instrumentals, background tracks, and sound effects, but “royalty-free” is not a universal description. A service may grant commercial-use permission without transferring copyright, and a paid plan cannot give you rights to third-party lyrics, voices, melodies, samples, trademarks, or uploaded material.
This comparison was updated on September 9, 2026 from current official product, help, license, pricing, and terms pages. We did not generate the same brief in all five tools or obtain legal opinions on any output. Plans and rights change, so save the terms and license that apply when each final file is created or downloaded.
Quick comparison
| Tool | Typical output | Licensing point to verify | Best evaluation question |
|---|---|---|---|
| Suno | Prompted songs, including vocals and lyrics | Suno's help distinguishes free-tier noncommercial use from commercial-use rights for songs made while subscribed to an eligible paid plan | Can you reliably revise structure, lyrics, pronunciation, voice, and mix into an approved song? |
| SOUNDRAW | Customizable background music and artist workflows | The permitted use depends on the plan and whether music is used in content or released as music; read the current license restrictions | Does the editing workflow yield an original-feeling track with documentation for the intended release? |
| Boomy | Quick song generation, editing, downloads, and distribution workflows | Confirm current download, commercial-use, distribution, revenue, and account terms for the exact plan and release route | Is the service suitable for rapid ideation, or can it also meet your mix, metadata, and distribution requirements? |
| AIVA | Instrumental compositions with audio and MIDI workflows | AIVA defines noncommercial, limited-commercial, and full-copyright outcomes by plan; its free plan is noncommercial | Do MIDI export, style control, arrangement tools, and the applicable license fit your production process? |
| Stable Audio | Text-to-audio and audio-to-audio music, sound effects, and soundscapes | The official site advertises commercial project use, but confirm current account and license terms for the output and input feature used | Can it create usable texture, loop, effect, or track length with clean endings and enough control? |
Commercial use is not the same as copyright ownership
Check at least five separate questions: May you use the output commercially? Who, if anyone, owns contractual rights in the output? Is attribution required? May you distribute the audio as a standalone song or stock asset? What happens after a subscription ends? A platform's contract can grant permission between you and that company, but copyright protection for predominantly AI-generated material depends on human authorship and local law.
AIVA illustrates the distinction clearly: its agreement ties a noncommercial license, limited commercial license, or full-copyright transfer to the user's plan. Suno likewise distinguishes commercial-use rights for eligible paid-plan songs from free-tier outputs. SOUNDRAW separates creator/background-content uses from artist music releases. Do not transfer the terms of one plan, generation date, or service to another.
Rights checklist before release
- Save the prompt, source inputs, creation date, active plan, invoice, output identifier, and a copy or link to the governing terms.
- Confirm that you own or licensed every uploaded melody, recording, sample, lyric, voice, and reference file.
- Avoid requests to clone a living artist, imitate a recognizable singer without permission, or reproduce a copyrighted song.
- Search for unexpectedly similar melodies, lyrics, titles, and recordings; investigate matches before release.
- Check standalone distribution, client work, advertising, film, game, podcast, broadcast, stock-library, and resale rights separately.
- Review attribution, territory, duration, sublicensing, takedown, indemnity, and post-cancellation rules.
- Do not register an output in Content ID or another rights-management system unless the license permits it and you can resolve conflicts.
How to run a useful comparison
- Write one neutral brief with genre, mood, instrumentation, tempo range, duration, structure, prohibited references, and final use.
- Create a fixed number of attempts in each tool and record all generations, not only the best result.
- Score composition, structure, repetition, artifacts, vocal intelligibility, lyric accuracy, mix balance, editability, and clean ending.
- Make one required revision—such as extending a chorus, removing vocals, changing intensity, or exporting stems or MIDI—and measure manual work.
- Run a similarity and rights review, then test the finished file in the actual video, game, podcast, ad, or release workflow.
- Calculate cost per approved minute using the current plan, failed attempts, editing time, mastering, and distribution fees.
Voice, lyrics, and disclosure
Obtain explicit permission before uploading or modeling another person's voice. Do not generate deceptive endorsements, non-consensual intimate audio, fraud, or impersonation. Human-review lyrics for defamation, private information, discriminatory content, unsafe instructions, and accidental copying. Disclose synthetic audio where law, contract, platform policy, advertising standards, or audience context requires it.
Which tool should you test first?
Test Suno for complete prompted songs with vocals; SOUNDRAW for adaptable background music and a documented creator workflow; Boomy for fast song ideation and its distribution path; AIVA for instrumental composition and MIDI-oriented control; and Stable Audio for music, effects, soundscapes, and audio-conditioned experimentation. The best choice is the one that produces approved, editable audio under terms that match the exact use—not the service with the largest output count.