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Horia Stan8 min read

Suno vs Udio vs Stable Audio: Which AI Music Generator Actually Helps Producers in 2026?

I tested all three AI music generators in real Logic Pro sessions. Suno exports stems, Udio locked downloads, Stable Audio caps at 90s. Here's the honest workflow verdict.

Horia Stan is a music producer and sound engineer based in Bucharest, Romania, who has integrated AI music generation tools into his Logic Pro workflow and tested Suno, Udio, and Stable Audio across multiple production sessions. Every few months, someone posts a comparison of AI music generators that reads like a software review written by someone who has never opened a DAW. I wanted to write the version a producer actually needs.

Not "which one sounds best on a laptop speaker." But: can you get usable audio out of it, can you drop it into Logic Pro without fighting your session, and does it save time or create more problems than it solves?

I tested all three. Here's what I found.


The Question Every Producer Is Actually Asking

The question is not "which AI makes the most impressive demo." It is: "can I export the audio, split it into stems, and build something on top of it in under an hour?"

That narrow question changes the whole comparison. Because on that metric, two of the three tools currently fail.


Suno v5.5: The One That Actually Works in a DAW

Suno is the only AI music generator I can recommend for production workflow today. Not because it sounds the best - it does not always - but because it is the only one where you can currently export, use stems, and close the browser.

Pricing:

  • Free: 50 credits/day, MP3 only, non-commercial
  • Pro: $10/month - 2,500 credits, WAV stems, commercial rights
  • Premier: $30/month - 10,000 credits, up to 12 stems, MIDI export

At Pro tier, you get WAV stems. At Premier, you get up to 12 time-aligned WAV tracks - drums, bass, lead vocals, backing vocals, guitars, synths, and more. The stems drop directly into Logic or Ableton already aligned to the session. No manual syncing.

MIDI export is a Premier-only feature at 10 credits per stem conversion. The MIDI is piano-roll data - notes, timing, velocity. No chord names, no notation. Good for extracting a chord sketch or melody and re-sequencing it with your own instruments.

The Workflow

I use Suno for two things specifically:

  1. Rapid idea sketches. I type a prompt - "dark pop, female vocal, half-time trap beat, 808 sub, minor key, cold and atmospheric" - and in under a minute I have something I can either keep or use as a reference for what I am building. This is faster than programming a demo from scratch when a client needs to hear direction.

  2. Background texture extraction. I generate ambient or textural material - strings, distant pads, room noise - export the stems, and use the individual elements as one-shot sources or loop material in my own arrangement. The "Other" stem from a cinematic generation often has interesting textural bleed worth using.

What Suno Cannot Do

The credit system burns fast when you are iteration-hunting. 2,500 credits sounds like a lot. At 10 credits per generation and another 10 per MIDI conversion, a single serious session can eat 200-400 credits chasing the right variation.

Suno Studio (their in-browser editor) is not a DAW and should not be treated like one. You cannot load third-party plugins. You cannot fix a single bar without regenerating a larger section. And the vocal stems on harmonically dense material still have audible AI timbre bleed between them - they work best when you treat them as texture, not as clean isolated tracks.

My finding: The most useful Suno export for my workflow is not the full mix - it is the isolated drum stem from a generation with an unusual drum pattern I would not have programmed myself. I then replace everything else.


Udio v4: The Best Specs, Currently Non-Functional

Udio had the most technically impressive feature set of any AI music generator. I say "had" because as of October 29, 2025, Udio disabled all audio, video, and stem downloads following a partnership deal with Universal Music Group and Warner Music.

This is not a minor limitation. It means Udio currently does nothing useful for anyone who needs to export audio for production.

What it had, and may have again:

  • 48kHz stereo output - the only AI generator matching pro studio sample rate
  • Four-stem export: Vocals, Bass, Drums, Other - phase-coherent, no comb filtering when layered
  • Inpainting editor: highlight a section of the waveform (spectral view), regenerate just those bars without touching the rest of the track. This was the feature that made Udio unique. Fixing a specific four-bar section instead of regenerating the whole song is the difference between a useful tool and a slot machine.
  • Session editor: extend tracks in 30-second increments up to 15 minutes

None of this is accessible right now. The pricing page still exists. The platform still generates music. You just cannot download it.

If Udio re-enables downloads - and they have said it will happen at some point in 2026 - the inpainting feature alone would make it worth a subscription alongside Suno. The phase-coherent 48kHz stems were cleaner than anything Suno currently outputs. Until then: skip it.

The story here is not about which AI sounds better. Udio made a business deal that made their product temporarily useless for producers. That is a risk worth knowing about when any AI tool is in your workflow - the platform can change the rules.


Stable Audio 3.0: The Right Direction, Wrong Constraints

Stability AI released Stable Audio 3.0 on May 20, 2026. It is a family of open-weight models, which means - in theory - you could run it locally on an M4 MacBook Pro.

The models:

  • Small (459M parameters): runs on-device, music generation
  • Medium (1.4B): needs CUDA or Flash Attention 2, generates up to 6 minutes 20 seconds
  • Large (2.7B): API-only, enterprise use

The consumer platform (stableaudio.com, running Stable Audio 2.0) is where most producers will land:

  • Free: 20 tracks/month, 45 seconds maximum, no commercial use
  • Professional: 500 tracks/month, 90 seconds maximum, commercial use under 100K monthly listeners

The 90-second cap kills it for any complete song production. A dark pop track has an intro, verse, pre-chorus, chorus, and bridge. 90 seconds is a verse and a chorus.

The Medium open-weight model can do 6:20 minutes but requires self-hosting with a CUDA setup. That is not something a producer running Logic Pro on a Mac is going to configure on a Tuesday afternoon.

What Stable Audio does well:

  • Training data is fully licensed. This is the one AI music generator where commercial use is legally clean without any ambiguity.
  • Instrumental generation is more controlled than Suno - less "AI-ness" in the output on pad and texture generations.
  • If you run the Medium model locally on an M-series Mac (it runs in a few seconds on an M4), you can integrate it into custom tooling. A Max for Live device that generates textural audio on command is not a wild idea.

But right now, for most producers: the 90-second cap and the absence of a workable stem export pipeline make it a tool to watch, not a tool to use.


The Comparison You Need Before Paying

| Feature | Suno Pro ($10/mo) | Udio Standard ($10/mo) | Stable Audio Pro | |---|---|---|---| | Can you download audio? | Yes | No (disabled) | Yes | | Stems available? | Yes (WAV, 12-stem at Premier) | Disabled | Limited/unclear | | MIDI export | Premier only | N/A | Premium tiers | | Max track length | Varies by generation | 15 min (when active) | 90 seconds | | Sample rate | Not confirmed | 48kHz (when active) | 44.1kHz | | Inpainting (fix one section) | No | Yes (disabled) | No | | Commercially clean training | Disputed (lawsuit settled) | Disputed (deals made) | Yes | | Useful today for production | Yes | No | Limited |


What I Actually Kept

After running all three through sessions over multiple months, my current workflow is Suno Pro for sketch generation and texture mining. Udio is bookmarked for when downloads return - the inpainting editor was genuinely useful and I want it back. Stable Audio I check quarterly to see if the local workflow has matured.

The realistic use of any of these tools is not "AI writes my music." It is: AI generates something unexpected that I would not have built starting from a blank session, and I take that unexpected element and make something with it that sounds like me.

The producer chair is not empty. But the tools on the desk are changing.


Frequently Asked Questions

Can Suno stems be imported directly into Logic Pro?

Yes. Suno's WAV stems are time-aligned at export and import cleanly into Logic Pro or Ableton without manual syncing. Premier tier gives you up to 12 stems. Pro tier gives fewer stems but still usable WAV tracks.

Why can't you download music from Udio right now?

Udio settled legal disputes with Universal Music Group and Warner Music in late 2025 and disabled downloads during the licensing transition. The platform still generates music but output cannot be exported. The company has said download functionality will return but has not given a confirmed date.

Is Stable Audio safe to use commercially?

The consumer platform (stableaudio.com) and the Stable Audio 3.0 model family were trained on fully licensed data, which makes them the most commercially clean option of the three. The Professional tier allows commercial use for projects reaching under 100K monthly listeners.

What is the cheapest way to get usable AI music stems?

Suno Pro at $10/month gives you WAV stem exports with commercial rights. That is the lowest entry point for production-ready exports among the three tools tested here.

Does Suno MIDI export work in Logic Pro?

Yes. The MIDI files from Suno's Premier tier are standard MIDI files that import into Logic Pro's piano roll. The data is notes, timing, and velocity - useful for extracting chord progressions or melodies to re-sequence with your own instruments.

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