Suno vs Udio: which AI music generator wins?

Suno's v6 family (v6 and v6-wild on paid, v6-mini on Free) was developed with Warner Music Group, BMG and Believe, and the output is a serious song rather than a loop. Udio generates 30-second or full-length takes, lyrics auto-written or instrumental, and positions itself for music makers, with Grammy-winning producers named in its own marketing. In practice the quality split is about taste: each model has a house sound, and the right pick is the one whose vocals and mix you prefer on your genre. Try the same prompt on both free tiers before you commit.

This is the clearest split. Udio leans into editing a song you already have: Sessions is a single-song timeline where you extend or replace segments with Take 1 / Take 2 and undo, inpaint fixes a section without re-rolling the whole track, and Styles let a reference clip or a saved preset steer the sound. Suno edits too — edit a section, change single lyrics, build mashups, extend and cover — but it is tuned more for generating a fresh strong take than for surgically reshaping one. If you iterate on a single song, Udio's controls are deeper; if you generate many, Suno's range is the draw.

Suno's Voices feature lets a paid creator record or upload their own singing voice, verified by speaking a random phrase and kept private, and Custom Models tune the model on your own tracks (three per subscriber). Udio offers a Voices library you can save and reuse, plus Styles that use a track or uploaded clip as a musical reference and premium Artist Styles. Both let you bring a reference; only Suno lets you train the model on your own material, which is the stronger pull for an artist building a signature sound.

Suno's Free plan gives 50 credits a day on v6-mini with no downloads and no commercial rights; Pro is about $8/mo billed yearly (2,500 credits, 20 downloads, commercial rights, your own voice, custom models) and Premier about $24/mo billed yearly (10,000 credits, 60 downloads, Suno Studio, stems). Udio's Free plan is tighter at 10 credits a day with a 100/mo cap and three full-length generations a day; Standard is about $8/mo annual (2,400 credits, editing, upload-to-generate, style reference) and Pro about $24/mo annual (6,000 credits, every feature). Day to day Suno's free tier goes further; at the top the two are priced almost the same. Both change these numbers often, so check the live pricing page.

Both draw the same line. On Suno, songs made as a paid subscriber are yours to use commercially, while free-tier songs are not cleared for commercial use. Udio ties commercial rights to its paid plans in the same way. If the track is going into a client project, an ad or anything you monetise, budget for a paid plan on either, and read the current terms, because the exact wording shifts as both products mature.