Last updated: July 2026. AI music went from novelty to genuinely usable in about eighteen months. The two tools worth your time do different things well, and the licensing fine print matters more than the audio quality if you’re publishing commercially. We’ve used both. Some links are affiliate links; it never changes our picks — disclosure.
Quick verdict
Suno if you want a finished song — vocals, structure and all — from one prompt. Udio if you want to shape a track rather than accept one: cleaner audio, far more control, steeper first hour. It’s a close race and the split is clean.
Our scores, side by side
| Tool | Our score | Best for | From | Watch out for |
|---|---|---|---|---|
 Suno | 8.6/10 | Full songs with vocals from a prompt. | Free / $10/mo | Licensing fine print |
 Udio | 8.4/10 | Higher-fidelity AI music with more control. | Freemium | Vocals trail Suno |
| Scored on | Suno | Udio |
|---|---|---|
| Ease of use | 9 | 6 |
| Features | 8 | 9 |
| Value | 8 | 8 |
| Performance | 9 | 8 |
Scores are ours, from hands-on use — how we test. Pricing verified Jul 2026; vendors change prices, so check the tool page for the current position.
Suno — best for complete songs
Most music generators give you a loop. Suno gives you a track — vocals, instrumentation and song structure together, from a single prompt. The vocals are the part that still surprises people, and they’re the clearest reason to pick it over Udio. You can write your own lyrics or let it write them, steer by genre and mood, and extend a promising generation rather than rerolling from scratch.
Two honest limits. Control is directional rather than granular — you’re steering, not arranging. And the licensing terms depend on your plan: the free tier is non-commercial, commercial use comes with the paid plans. Read the licence before anything ships. That’s the recorded watch-out on this tool and it’s the one that can actually cost you.
Udio — best for control and audio quality
Udio produces cleaner audio and exposes far more control over the result. Section-level editing and inpainting mean you can replace a bad passage in place instead of regenerating the whole track — genuinely unusual in this category, and the reason producers prefer it.
The cost of that control is a steeper learning curve; you won’t get a good result in the first five minutes the way you can with Suno. Vocals also trail Suno’s, which matters if the song is carried by a voice.
If you need background music rather than songs
Both of the above are song generators. If what you actually need is a royalty-free bed for a video at an exact runtime, that’s a different tool: Soundraw generates by mood, genre and length and lets you edit sections to fit the cut, and AIVA handles orchestral and cinematic scoring with MIDI export. We haven’t tested either, so those are listings rather than reviews — but they’re the right shape for that job.
The licensing question, honestly
This is the part people skip and then regret. What you may do with a generated track depends on the tool and the plan you were on when you generated it. Free tiers are typically non-commercial. Paid tiers usually grant commercial use, sometimes with attribution conditions and sometimes with limits on resale.
None of that is legal advice and terms change — check the current licence for your plan before you publish, monetise a video, or put a track in a client deliverable.
Which should you choose?
- A finished song with vocals: Suno.
- Audio fidelity and fine control: Udio.
- Background music cut to a runtime: Soundraw (untested by us).
- Orchestral scoring with MIDI export: AIVA (untested by us).
- Voiceover rather than music: see AI voice generators.
How we tested
We paid for both and generated the same three briefs on each: an upbeat vocal track, an instrumental bed for a two-minute video, and a genre pastiche to see how far the steering held. We listened on monitors and on a phone speaker, because that’s where most of this ends up. Scores cover ease of use, features, value and performance, with the reasoning on each tool page. Full method: how we test AI tools.
FAQs
Can I monetise AI-generated music on YouTube?
Generally yes on a paid plan that grants commercial rights, but the platform’s own rules apply too. Check both your tool’s licence and the platform’s policy — they’re separate questions.
Which has better vocals?
Suno, clearly. It’s the main reason we pick it for finished songs, and the recorded weakness on Udio’s side.
Can I get separate stems?
Both offer stems on paid plans. That’s what you need if the result is going into a real mix rather than being used as-is.
Is there a usable free tier?
Both have one, and both are non-commercial. They’re enough to judge whether the output suits you, which is the only question worth answering before paying.
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