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Treblo

music generators

Free AI music generator with vocals, renamed from Sonauto on 3 June 2026; its terms assign output rights to the user and permit commercial release on the free tier.

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Free, no consumer paid tier (a separate developer API starts at $11/mo) · affiliate links never affect the score

Vouch Score v11 · data collected 19 August 2026
72.8/100
average
  • Capability42.8
  • Usability & control91.7
  • Value100
  • Commercial terms71.7
Sources: https://artificialanalysis.ai/music/leaderboard/vocals · https://itunes.apple.com/lookup?id=6757288408&country=us · https://play.google.com/store/apps/details?id=ai.sonauto.app · https://treblo.com/ · https://treblo.com/tos · https://treblo.com/developers/pricing. Recomputable from the committed inputs; see methodology.

By Minel Gunesoglu, founder. For this page I read Treblo's terms of service end to end, took its app-store figures from Apple's and Google's own served data rather than from a screenshot, and read five threads in the product's community in full. Nobody here has put a prompt into Treblo. Card data 19 August 2026, community record 20 August 2026; the price position and the contract are re-read monthly.

Sonauto did not shut down. It has a different name, and the vendor answers the question on its own homepage under the heading "Didn't you used to be Sonauto?": "Yes. We changed our name to Treblo because the new name is easier to say, spell, and remember. Same team, same songs, same account" (treblo.com, read 19 August 2026). The rename dates to 3 June 2026.

Almost everything measurable about this product still carries the old name, which is why a reader can lose the thread. The blind-listen board that fills the capability cell on this page lists the entry as "Sonauto V2.1" (read 19 August 2026). The Google Play listing's application id is ai.sonauto.app. Apple's own lookup payload prints the seller as "Sonauto, inc." beside an app titled "Treblo - AI Music". And the contract, dated 11 June 2026 and served from treblo.com, opens "We are Sonauto, Inc." Those are four separate records tying one product to two names, and none of them is a search result.

One warning before any number below means anything: the bare word is a poor identifier. Treblo is easily confused with Treblle, an unrelated API-observability company, and with the musical term treble. If you are checking ratings or reviews for this product elsewhere, confirm the listing is the music app first.

What Sonauto AI is now called, and what Treblo actually does

Treblo is a text-to-song generator with sung vocals, published by Sonauto, Inc. and running on the web, iOS and Android. You describe a track or pick style tags, supply your own lyrics or let the model write them, and it returns a full song with singing rather than an instrumental bed. The vendor's homepage advertises 4,160 styles, says a track "starts streaming in about 15 seconds", and lists downloads in OGG, MP3, WAV, FLAC and M4A (treblo.com, read 19 August 2026). Those are the vendor's own claims about its own product, quoted as such, and no measurement here rests on them.

What separates it from most of the category is not a feature. It is that the free tier is the whole consumer product: there is no paid consumer plan to upgrade to, and the terms hand you commercial rights to what you make. Both of those are unusual enough that the rest of this page is mostly about establishing them precisely, because the number at the top of the card is a poor guide to either.

How Treblo's 72.8 score is built, and why the capability row reads 42.8

Four rows carry a value on this card, all of them read on 19 August 2026: capability 42.8, usability 91.7, value 100.0, commercial terms 71.7. The composite is 72.8 and the band printed beside it is "average".

Read those four in the order they were just given, not in the order of size. The composite is a geometric mean, so a weak row pulls harder than a strong one flatters, and 72.8 is what happens when a last-place quality reading is averaged against a price of zero. It is not a summary of how good the music is. Each row is a reading of a different thing, taken from a different source, and the figure is only useful once you know which reading you care about. The general rules behind all of this sit on the methodology page; what follows is specific to this tool.

Treblo's 42.8 capability cell: what the board ranked, and under which name

The capability figure comes from the vocals view of the Artificial Analysis Music Arena, where listeners vote blind between pairs of generated tracks and the results are expressed as an Elo rating. On 19 August 2026 the row for this product read: rank 15 of 15 ranked entries, Elo 964, 95% confidence interval −7/+7, 9,382 votes, with the board's own rank range given as 14-15. That last detail is easy to skip and worth keeping, the interval means the placing is not statistically separable from the entry immediately above it. Last, but not distinguishably last.

The row is labelled "Sonauto V2.1". That is the board's own string on that date, two and a half months after the rename, and it is the single most important qualification on this page's biggest negative. Users were discussing v2.2 against v3 in one conversation five months before it was read, one asking "Is 2.2 better than v3?" and another answering "no, v2.2 has worse quality issues than v3" (r/udiomusic, read 20 August 2026). More than one version is in live use, and the version the board scored is not self-evidently the one you would generate with today. A capability number without its version attached would be overclaiming, which is why the version travels with it in every sentence here.

What the cell measures is also narrow: strangers' blind preference between short audio samples. It does not measure prompt control, editing, style range or whether the thing you asked for came out. Those turn out to be exactly the properties the people who like this tool talk about, and that split gets its own section below rather than being folded into the number.

Treblo user reviews: a 91.7 row pooled from two app stores

This row is the consumer record, and both halves of it were read off the platforms' own served data on 19 August 2026 rather than from a rendered count. Google Play carries 4.647887/5 across 338 ratings for ai.sonauto.app. Apple's lookup endpoint returns 4.68182/5 across 110 ratings for "Treblo - AI Music" (id 6757288408). Converted onto a 0-100 scale and pooled by sample size, that is a raw 93.1 over 448 ratings, published as 91.7 after the small-sample adjustment every card gets. At this sample size the adjustment barely moves it.

Two limits ride with that row, and the card flags the first. Neither platform states whether the app asks users for a rating, and an app can prompt in-app without the listing saying so, so both regimes are recorded as unknown rather than guessed. Prompted and unprompted samples do not mean the same thing, and pooling them assumes something nobody has checked. The second limit is what the software-review platforms hold: read on 19 August 2026, G2 has no profile under either name, Product Hunt carries two reviews under the legacy name, and the only Trustpilot profile sits on the retired sonauto.ai domain with six reviews. Ten is the sample floor before a review record counts toward anything here, so none of those three contributed to the card. The 91.7 is an app-store number, and app-store ratings tell you how an app is received, not how the music competes.

Why Treblo's value row is 100.0, and what a top-of-ladder score does not mean

This is the row most likely to be misread, so it is worth stating flatly: 100.0 is a structural fact about the price, not a verdict on the product. The value axis converts a monthly consumer price through a fixed ladder, and the top rung of that ladder is a monthly price of zero. Treblo's consumer app has no paid tier at all, so it lands on the top rung by construction. Any product costing nothing would score the same, whatever came out of it.

Because a zero puts a cell at the ceiling, that figure was checked four separate ways on 19 August 2026: Apple's payload prints the price as "Free"; the vendor's homepage is titled "Treblo | Free AI Music Generator" and reads "And it's actually free."; treblo.com/pricing returns HTTP 404, because there is no consumer pricing route to return; and the only paid ladder anywhere on the domain is a developer API, which is a different product for a different buyer.

The remaining row, commercial terms at 71.7, is a weighted reading of clause positions in the vendor's contract, the indemnity direction, whether the free tier permits commercial use, and the refund posture. The fourth position that axis normally reads, what a paid tier lets a buyer keep, has no consumer paid tier to read it from, so the weighting is renormalised over the three the document answers. Each of those clauses is quoted below.

Is Treblo free? What the app costs, and what the developer API is priced at

Yes, and with fewer qualifications than the word usually carries in this category. There is no consumer subscription, no credit pack and no export paywall on the consumer app as read on 19 August 2026. The homepage states the position in the vendor's own words ("And it's actually free.") and the absence of a /pricing route is corroboration rather than decoration: there is no page to state a price on.

The one paid ladder on the domain is the developer API, at treblo.com/developers/pricing, read the same day: Starter at $11/month for 20,000 credits, Pro at $88/month for 160,000 credits, and a free trial of 1,500 credits with no card required. That is a product for people putting music generation inside their own software, not a plan a songwriter upgrades to. Keep the two separate; the card's value row is the consumer position, and the API prices had no part in it.

One consequence of being free is worth knowing before you build a workflow on it. The terms do carry a subscriptions section with auto-renewal and cancellation language. It exists because the API is sold under this same contract, and the cancellation rule reads that "Your cancellation will take effect at the end of the current paid term" (Treblo terms of service, dated 11 June 2026, read 19 August 2026). No refund is offered anywhere in that document; the single appearance of the word sits in boilerplate about an app store's own policy, not the vendor's. There is nothing to refund on a free account, but if you take the API, that is the posture you are taking it under.

Sonauto AI commercial use: what Treblo's terms restrict, and what Section 8 grants

This is the question the product's own community keeps reopening, and it is the one section of this page I would still stand behind if every number above were deleted. The short answer is that you may sell what you make, including on the free tier. The reason people keep asking is that the contract answers it in the wrong order.

A reader who opens the terms meets the restriction first. Section 2, "INTELLECTUAL PROPERTY RIGHTS", grants a licence "solely for your personal, non-commercial use or internal business purpose", and states that the vendor's Content and Marks are provided "for your personal, non-commercial use or internal business purpose only". Section 6, "PROHIBITED ACTIVITIES", adds that "The Services may not be used in connection with any commercial endeavors except those that are specifically endorsed or approved by us." Two restrictions, both real, both about the service and the vendor's own material.

The carve-out arrives six sections later. Section 8 assigns the music to the user. "You own any right, title, or interest that may exist in the musical and/or audio content that You generate using the Services", followed by "We hereby assign to You all our right, title, and interest, if any, in and to Your Outputs", and then disposes of the earlier restrictions by name: "The restrictions on commercial use of the Services elsewhere in these Legal Terms do not limit Your use of Your Outputs." (All quotations from the terms of service dated 11 June 2026, read 19 August 2026.)

So the grant is unambiguous once you reach it, and the difficulty is structural: the sentence that takes the right away sits where a reader starts, and the sentence that gives it back sits where they stop reading. That is a finding about a document, not about anybody's intentions. The vendor is not quiet on the point either. Its own homepage FAQ answers the question correctly and cites the clause. Asked whether songs can be used outside Treblo, it replies: "Yes, even on the free tier. We place no usage restrictions on songs you create, and whatever rights may exist in them belong to you, not us." It then points readers to "Section 8 (Output) of our Terms of Service" (treblo.com, read 19 August 2026).

One further clause belongs in the same breath, because permission to sell is not a promise that the thing you sell is protectable. Section 8 also states: "We make no warranties or representations regarding the Outputs, including as to their copyrightability or legality." You are free to release the track. Whether anyone could stop somebody else reusing it is a separate question the contract expressly declines to answer.

Can you release a Sonauto AI song on Spotify or DistroKid? What Treblo's own FAQ says

The people asking are asking in exactly those terms. In the vendor's own subreddit, six months before the thread was read on 20 August 2026, one user wrote: "can I distribute the song to distrokid if I use sonauto". The reply they got was "Heard both so you can try. Or send a mail to their support" (r/sonauto). That is the cost of a carve-out nobody can find: the right existed on the day that question was asked, and the person holding it could not act on it.

The same thread, three months before it was read, contains the correct reading. One commenter walks Section 2's own "Except as set out in this section or elsewhere" back to its destination ("That elsewhere section is #8."), describes the result as "making us have to cross-reference two separate sections to understand if we can use songs commercially or not", and closes with "The answer is yes."

A second thread ran the same argument again a month before it was read on 19 August 2026. The poster quoted the Section 2 licence and concluded "It looks like your generated songs can only be for personal use." Another user answered with Section 8 and put it plainly: "Based on the current Terms, monetizing your own outputs on YouTube, Spotify, etc. is explicitly permitted." The original poster's reply is the whole problem in eight words. "Hmm. I think they need a FAQ for non lawyers." (r/sonauto). The vendor does have one, and it answers correctly; it sits on the homepage rather than in the contract, and neither poster in that thread had found it.

The question Treblo's terms leave with you: third-party rights in an emulated artist

There is a second reason users hesitate to release these tracks, it is unrelated to the first, and conflating the two would answer only the easier question. Six months before it was read on 20 August 2026, a poster who had no trouble reading the terms wrote: "The voices and delivery are just identical to the original artists", and "I just don't think there's a legal way to make money from the songs being generated." Another user in the same thread went further: "It is not and should NOT be used commercially or even publicly" (r/sonauto).

What a vendor permits and what a third party might claim are different questions, and the contract is explicit about where it leaves the second one. Section 8 states "You are solely responsible for Outputs and Your use of Outputs", and Section 22 runs one way only: "You agree to defend, indemnify, and hold us harmless, including our subsidiaries, affiliates, and all of our respective officers, agents, partners, and employees". Searched on 19 August 2026, no clause running in the other direction, the vendor covering the user, appears anywhere in that document. That is what the commercial-terms row is reading when it scores the indemnity position: the grant is generous, and it comes without cover.

That combination is not unusual and it is not this vendor's alone. Whether AI-generated music closely resembling a named artist creates exposure for whoever releases it is being litigated across this whole category rather than at one company, the dated legal record on Suno's card is one example among several. This page draws no legal conclusion in either direction. It reports what the clauses say, on a stated date, and notes that several users decided on their own to keep their tracks unreleased.

Sonauto AI music quality: what Treblo users report, and where they disagree

Here is the reconciliation the card cannot perform on its own. A reader who has seen the 42.8 and then meets someone online who prefers this tool is not looking at a contradiction. The blind-listen board and the enthusiastic user are scoring different properties, and the clearest evidence for that comes from a single writer who does both in one post.

Five months before it was read on 20 August 2026, in a rival platform's subreddit rather than this product's own, which is what makes it the least partisan account in the set. One user listed five specific weaknesses. On prompting: "the prompting is very prescriptive. It has no auto interpretation of non-catalogued tags". On pacing: "It rushes everything. If you give it a lot of lyrics it'll try cramming them in a maximum of 4:45." On rhythm: "Very poor job of keeping a cadence." And on melody: "It sounds more like certain bands than Udio does but it also sounds like more generic versions of them". The thread's author, in the same discussion, added the mix criticism: "on treble and complex passages, can still hear typical AI distortion and shimmer effect".

The same writer who supplied four of those five names the strength in the same post: "Sonauto has a lot more personality, lack the prohibitions on using artist names, and from what I can tell isn't very censored." Their worked example is prompting for a named band and getting something that sounds like it, including for artists they could not evoke elsewhere. So the praise is about style emulation and prompt freedom; the criticism is about pacing, cadence and mix; and the board is measuring blind listener preference on short samples. Nobody is wrong about the thing they are describing. Another user in the same thread put the practical version of it in one line: "Suno if you want mainstream, Sonauto if you want something weird."

On raw audio quality the community does not converge, and this page is not going to pretend otherwise. In that one thread, on that one date, the author wrote that "clarity and overall quality are solid (though Udio is still better)", a second user replied "I disagree, the sound quality is much better than in Udio", and a third asked "People get good quality in Sonauto? I don't". Three positions, one conversation. Adjudicating between them from text would be inventing a measurement, so the split is reported beside the arena figure rather than resolved into it.

The one property named repeatedly on the positive side is control. A user in the other subreddit, writing 24 days before that thread was read on 19 August 2026, gave their reason in a sentence: "My primary reason I like Treblo is prompt adherence."

Can Treblo still take a copyrighted reference track? What users reported in its subreddit

This is the most decision-relevant change in the community record, and it is worth being precise about its evidential standing: it is user-reported, and it is not documented anywhere on the vendor's site that this desk has read.

Roughly three months before the thread was read on 20 August 2026, a user posted that uploading an existing copyrighted song as a reference had stopped working: "This was the only AU song generator left I found that you could use to take a real song and insert parody lyrics", and, on the failure itself, "every time i would input a copyrighted ref track it would just say "processing" forever and not work". A second user in the same thread reported the same thing happening to them. "I slipped one through a couple of weeks ago but not again since then" (r/sonauto).

The other half of that thread matters just as much, because the two routes are not the same route. Prompting by artist name was still working for several users. The same poster who reported the failure wrote that "you can still say (for example) "Drake style song" in your prompt and it is very very accurate", another described their method ("i just pick the advanced, toggle off the auto prompter and type 'artist: "Eminem", hiphop, angry"), two months before the read, and a third reported simply that "Michael Jackson still works". So: one input route reported closed, another reported open, both dated, and no claim here about why.

Treblo's homepage FAQ, read 19 August 2026, describes reusing prompts, replacing lyrics, extending tracks and remixing, and does not mention uploading a reference track at all. That is an absence in one captured document rather than a policy statement, and if you are choosing this tool specifically to modify existing recordings, it is the thing to test on a throwaway account before you plan around it.

Custom voices on Treblo: what one user says the gap rules out

One named limitation is worth surfacing because of who it disqualifies rather than how often it comes up. Five months before the thread was read on 20 August 2026, a user wrote: "They don't have custom singers or allow us to upload our own voice to use in songs." They then stated the consequence for their own use directly: "The ability to sound vocally unique and consistent across tracks is non-negotiable for creating an album or an artist channel." Treblo's homepage FAQ, read 19 August 2026, lists no custom-voice or voice-upload option among the things it says you can do, which is consistent with that account without independently confirming it.

One further report is recorded here at the weight it deserves, which is low. A single user in that same thread described a persistent "failed to generate captcha was not ready" error across browsers that stopped them generating anything at all. Exactly one person raised it, nobody in the thread corroborated it, and one report is not a finding. It is noted so that a second one, if it ever appears, has something to join.

Treblo alternatives: what else in this category carries a score card

The current set of scored music generators, each with its own composite and the date behind it, sits on the music generators category page; two of them answer questions a Treblo reader is likely to have next.

Suno sells monthly consumer plans rather than giving the product away, so the questions its page works through are tier pricing, what the paid plans change about rights, and a customer review record with a very different shape from an app-store average. AIVA is aimed at composed and largely instrumental work rather than sung tracks, and its rights question is structured the other way round from Treblo's: ownership of the composition arrives on a paid tier rather than at signup.

This page sets no product against another and names no winner. Where those cards sit relative to each other is computed from the scores when the site builds, so the category page always shows the current order: including after the next tool is scored, which will move it.

Who should use Treblo, and who should walk away

Two things about this tool are unusually clean and one is unusually weak, and which of them decides your answer depends entirely on what you are making.

Use it if the rights position is what you have been stuck on. If you have been circling AI music because you could not work out whether you were allowed to release the results, Treblo answers that more clearly than most: the terms assign the output to you, expressly lift the commercial restrictions for it, and cost nothing, all verified against the contract dated 11 June 2026 and the price position read on 19 August 2026. For parody, jingles, background music, personal projects, or a first release where the point is to get something finished, that combination is hard to argue with, and the free tier means the only thing at risk is your time.

Walk away if vocal consistency across a body of work is the job. A user's account, not a vendor statement, says there is no custom or uploaded voice, and if you are building an artist identity across an album or a channel, that is disqualifying on its own. Walk away too if your workflow depends on feeding in an existing recording: two users reported that route failing about three months before this record was assembled, and the vendor's own material does not address it. And if you need a contract that covers you rather than one you cover the vendor under, this is not it, the indemnity runs one way, and Section 8 declines to warrant that the output is protectable at all.

Everyone else sits in the middle, where the honest answer is that the measurement is thin in a specific place. The 42.8 is a real reading from 9,382 blind votes, and it was taken on an entry the board itself calls "Sonauto V2.1" while the community discusses later versions. The 91.7 is real too, and it is an app rating rather than a judgement about music. The 72.8 that averages them is a starting point for a decision, not the end of one, which is why this page spends most of its length on the two things a number cannot carry: what the contract actually says, and what people who use the product actually report. Both get re-read on a monthly cycle, and any figure above that moves will move here in the same pass.

Who writes this and how the scores are built: about this site. Author profile: Minel Gunesoglu on LinkedIn.

Published 20 August 2026Last updated 26 August 2026

Scores and evidence on this page are re-checked monthly. Read about the person behind the scores, or find me on LinkedIn.

Licence terms, ownership and litigation status are reported here with the date they were read and a link to the source. They change, and a summary is not a clearance: nothing on this site is legal advice, and whether a particular use is safe for your work is a question for a lawyer in your own country. Verify a vendor’s current terms before you commit a deliverable to them.