Comparison
Suno vs Udio: what you do with the take that is eighty percent right
Suno is built to hand you a finished song from a short description. Udio gives you more control over the arrangement and expects you to keep working. This page covers what each one is best at, the rights question that outranks the audio, and what to do when the music is thirty seconds under an ad. By the end you will know which one your job needs, or whether you need one at all.
- Tool, tier and date: the note that answers a rights question eighteen months later
- 3 fields
- What used to be an hour in a stock library, now a few minutes
- 8 moods
- How many people audition before admitting the second one was fine
- 30 options
Suno is the buy when you want a track, not a project
Describe a style. Add lyrics or leave them out. A complete piece with structure and a mix comes back.
The whole design points at finished, and for a bed under thirty seconds of speech that is the correct ambition.
You are not making an album. You are stopping a silent gap from sounding like a mistake.
It is also the friendlier tool for people with no musical vocabulary. You describe a feeling rather than an arrangement, which is how most non-musicians think about music.
The trade is the take that is eighty percent right. When the chorus is wrong and everything else is fine, a finished-song tool hands you another whole song.
That matters less than it sounds under speech. Nobody hears the second chorus of a thirty-second ad.
Stop at the second acceptable take. People audition thirty options and choose the one they heard fourth, an hour later.
Two answers to the take that is nearly right
Both generate convincing audio. What separates them is what happens on attempt seven, which is where a project either finishes or stalls.
| Suno | Udio | |
|---|---|---|
| Aims at | A finished song | A session you keep shaping |
| You describe | A mood and a genre | An arrangement |
| When a section is wrong | Generate again | Work on that section |
| Rewards | Speed to something usable | Patience and musical vocabulary |
| Frustrates | People who hear the fix | People who wanted it done |
Udio is the buy when you can already hear the arrangement
More granular control. More room to move toward a specific sound rather than accept a plausible one.
If you know what a bridge should do, that control is worth having.
It suits people building a piece of music rather than sourcing one. Sourcing wants finished. Building wants adjustable.
The cost is time and vocabulary. A tool that lets you shape the arrangement expects you to know what to change.
Somebody without that language ends up rerolling anyway, which is the thing they were trying to avoid.
For a thirty-second bed under an ad, that control is more than the job needs. For a theme you will use for a year, it is worth the extra sessions.
Getting thirty seconds of music that fits a cut
A worked example, not a vendor claim. Generation removes the wait, which is why it gets bought, and the waiting was never the hard part of choosing.
- Brief a composerAbout 10 days
- Search a stock libraryAbout an hour
- Generate and retryMinutes
This is the whole editor
Highlight a phrase and a clip lands on those exact words. No timeline, no keyframes, no layers.
Neither knows where your cut lands, and neither will make that track twice
A generated track has no idea that your speaker pauses at four seconds. It does not know the offer arrives at twenty-two.
Music that lands with an edit has to be trimmed against the edit, and that work stays yours in both tools.
Reproducibility is the second surprise. Regenerating from the same description gives you a different piece.
Download and archive anything you might use again. The exact take is not sitting on a shelf waiting for you.
Keep the file, the prompt, the tool, the tier and the date in one place. That note answers a rights question eighteen months later.
And test the track at phone volume with speech over it. A mix that sounds full on headphones can swallow a voice on a phone speaker.
Trim the music against the cut rather than the cut against the music. The edit is the thing being watched.
Rights decide commercial use, and buyers read that section last
Both companies attach commercial usage to paid tiers. Both have changed terms as the legal position moves.
Read the current terms for the tier you are on, on the day you publish.
Free tiers are usually not licensed for advertising. Generating on a free account and shipping the ad is the expensive version of this mistake.
Platform-level rules are a separate question from the tool's licence. Music detection systems can flag audio independently of whether you are allowed to use it.
If a track will run under a campaign for a year, keep the archive note and re-read the terms when you renew.
Ask who at your company would answer if a platform queried the audio. If the answer is nobody, that written note is the whole defence you have.
Write the note on the day you generate rather than the day somebody asks. Nobody reconstructs a tier from memory eighteen months later.
- A bed under thirty seconds of speech: the finished-song tool, and stop at the second acceptable take.
- A theme you will reuse across a year of content: the tool with more arrangement control.
- Anything commercial: paid tier, current terms, and a written note of tool, tier and date.
- Music for one vertical ad: Cutroom generates the bed inside the project for 20 credits, with the level already set.
If the music is thirty seconds under your own ad, generate it inside the ad
Most advertisers are choosing a bed, not commissioning a score. Two acceptable takes and a decision beats thirty auditions and a Tuesday gone.
Cutroom generates that bed inside the project instead of beside it. Describe a style and write lyrics for a sung track, or leave the words empty for an instrumental.
It comes back at 20 credits per track and sits under the cut with the level already set against the voice. No exporting, no importing, no ducking pass.
The music is one of eleven decisions in a project that also drafts the cut, times the captions and places the b-roll.
The facts a buyer needs: no stem export, no arrangement control, no way to work a section, and the track lives inside the Cutroom project.
A batch is 100 credits and an export is 20 credits per output minute. The trial runs 7 days on 300 credits with no card.
Suno and Cutroom, row by row
Two rows go to Suno and they settle it if music is the deliverable. The rest is what happens when the music is one layer of an ad.
| Suno | Cutroom | |
|---|---|---|
| Full-length songs | Verses, choruses, structure | A bed for one ad |
| Download the track anywhere | Yours to use elsewhere | Lives inside the project |
| Sits under a finished cut | You place and duck it | Level set in the edit |
| Captions, b-roll and the cut | Music tool, nothing else | The whole 9:16 ad |
| Known cost per track | Priced by plan allowance | 20 credits, any length |
| One place for voice, pictures and music | Audio only | One project, one export |
| Trial without a card | Check their current terms | 7 days, 300 credits |
Questions people ask
- Can I use generated music in a paid ad?
- Commercial rights are usually attached to paid tiers and the terms move, so read the current licence for your tier on the day you publish. Keep a note of the tool, the tier and the date, because that record answers the question later.
- Will the same prompt give me the same track again?
- No. Generation is not reproducible in either tool. Download anything you might reuse and archive it with the description that made it, because regenerating gives you a cousin rather than the same piece.
- Which sounds better?
- Both have moved past the point where a listener in a feed can tell, on most styles. Judge instead on what happens at attempt seven, when the take is nearly right, because that is where a project either finishes or stalls.
- Who should use neither?
- Anyone whose ad is a person talking. Music under speech is a background decision. Cutroom generates the bed inside the project for 20 credits with the level already set, which leaves the saved hour for the opening line.
Two acceptable takes and a decision. Cutroom makes that decision one of eleven, inside the same project that cuts the ad.