A free AI music generator (formerly Sonauto) that writes complete songs — lyrics, vocals, and instrumentation — from a text prompt, with no daily limits and full commercial rights.
Last verified · 2026-08-05 · by Moe Ameen
Treblo is a free AI music generator that turns a text prompt into a complete song — lyrics, vocals, and instrumentation together. It is the product formerly known as Sonauto, which was founded in 2023 by Ryan Tremblay and Hayden Housen and backed by Y Combinator. The team renamed it to Treblo in 2026 (the name comes from "treble," the top end of a sound where the melody usually lives), because people struggled to pronounce and spell "Sonauto." The old sonauto.ai domain now redirects to treblo.com, and existing accounts, songs, and shared links continued to work through the rebrand.
Under the hood is a model called Melodia. Its technical distinction is that it is a latent-diffusion model rather than the LLM/token-prediction approach most AI music tools use — the same family of technique behind diffusion image models, adapted to audio. The current generation is Melodia v3 (with a v3-preview and an earlier v2 also selectable). Diffusion gives it fine editing control: you can inpaint and regenerate specific sections of a song, swap lyrics in place, pull stems, and condition generations on BPM or MIDI.
The headline positioning is "free and unlimited." Treblo advertises unrestricted generation with no daily cap, no credit system, and no paid subscription tier for personal use, and it grants full commercial rights to your outputs at every tier. It supports thousands of style tags (4,000+ spanning genres, moods, instruments, and era descriptors), sings in many languages — English, Spanish, Japanese, Korean, Hindi, Portuguese, French, German, Mandarin, Arabic, and more — and lets you download finished tracks in OGG, MP3, WAV, FLAC, or M4A. There are iOS and Android apps in addition to the web app. A separate credit-based developer API exists for programmatic generation (new developers get free starter credits; paid plans start around $11/month), but the consumer product itself is free.
The honest framing: Treblo makes a finished track and stops there. It writes no caption, cuts no video, holds no brand voice across a content week, and publishes to no platform. On raw audio fidelity a paid tool like Suno often sounds a step ahead — Treblo's bet is quantity, freedom, and control rather than topping a quality leaderboard.
Treblo's real superpower for creators isn't one perfect song — it's that generation is free and uncapped, so you can score every single post instead of rationing one licensed track across a month. But an unlimited music tap only pays off if something downstream can absorb that volume into finished, published content at the same rate, and that is exactly the gap Treblo doesn't touch. Kompozy is a full AI content generation and multi-platform publishing engine built to run at that cadence. Generate a fresh bed per idea in Treblo, then bring each one into Kompozy as the audio under real video formats: Naturalistic Video and Listicle Video lay your title and body cards over a portrait clip, Clipped Shorts cut a long piece into vertical moments, and Persona Frames composite a face-locked avatar into a brand-exact HyperFrames template — with captions burned in, the frame reframed to 9:16, 1:1, and 16:9, and everything held to one voice by your Persona Brief.
Because Treblo's WAV and stem exports drop straight in, and because both tools are built for high output rather than one-off hero pieces, you can keep a genuinely daily calendar full. Kompozy fans each music-driven idea into 25–35 outputs — the short itself, a Carousel teasing the track, Quote Graphics from the lyrics, native Text Posts, a Blog Article, an Email Newsletter — then schedules and publishes them across the eight primary social platforms plus blog and email from one queue with Autopilot and a per-post review pipeline. Treblo removes the cost of music; Kompozy removes the cost of turning that music into a published presence everywhere.
Treblo is a free AI music generator that turns a text prompt into a complete song with vocals, lyrics, and instrumentation. It is the product formerly called Sonauto, founded in 2023 and backed by Y Combinator; the team renamed it to Treblo in 2026 and sonauto.ai now redirects to treblo.com, with existing accounts and songs intact.
Yes. Treblo advertises unlimited free generation for personal use — no daily cap, no credit system, no subscription — and grants full commercial rights to your outputs at every tier. A separate credit-based developer API (paid plans from around $11/month) exists for programmatic generation, but the consumer app is free.
Treblo runs a model called Melodia, which is notable for using latent diffusion rather than the LLM/token approach most AI music tools use. The current generation is Melodia v3. Diffusion enables section-level inpainting, stems, and BPM/MIDI conditioning.
Suno often sounds a step ahead on raw audio fidelity and has a deeper feature set, but it caps free generation and requires a paid subscription for commercial rights. Treblo bets on being genuinely free and unlimited with full commercial rights at every tier, thousands of style tags, and diffusion-based editing control. Which wins depends on whether you value top-end quality or volume and freedom.
Treblo makes the audio and stops there. Bring the track into Kompozy and it becomes the bed for real video — Naturalistic Video, Listicle Video, Clipped Shorts, or a Persona Frames avatar composite — with captions burned in and per-platform reframing, then it fans the idea into a carousel, quote graphics, posts, a blog, and a newsletter and publishes them across the eight social platforms plus blog and email.