WhoSung

Guide

Suno v6: what's new and how to spot a Suno song

Suno's v6 models, the licensed training data behind them, the user backlash and the new lawsuit, and how to tell whether a song was made with Suno.

By the WhoSung desk · published Oct 23, 2026 · updated Oct 23, 2026

Suno released v6 on Sep 9, 2026, calling it “a new generation of music models developed with our industry partners, including Warner Music Group, BMG and Believe” (Suno). It replaces every earlier Suno model. This guide does not rely on AI detectors or on how a song sounds. What you can do is check what the creator and the platforms say.

What’s new in v6

Suno released three models (Suno):

  • v6: the flagship model for Pro and Premier subscribers, described as “reliable, precise”.
  • v6-wild: also for paid plans, “less predictable and more varied”.
  • v6-mini: a faster model available to everyone, including free users.

New features include editing one part of a song with a plain-language request, building a mashup from several of your songs, sampling and isolating part of a track to build a new beat, changing a single lyric without rebuilding the song, and starting from text, audio, images or video (Suno).

Suno said it would retire its previous models as v6 rolled out (Suno). By Sep 17, MusicRadar reported the older models had been “permanently retired” (MusicRadar).

What it was trained on

MusicRadar reported that Suno confirmed v6 was trained from scratch, not on the same data as earlier models, using a combination of licensed data from its industry partnerships and user data, including recordings from Warner Music Group and BMG. Under the Believe deal, tracks made with Suno can be distributed through Believe and TuneCore, and Believe and TuneCore artists can opt in to have their music used for training (MusicRadar).

A Suno spokesperson told Variety that v6 “was trained on content licensed from our partners, interactions including creations and preference signals from our community, and the accumulated learnings from our team” (Variety).

Suno also says it added “safeguards to screen uploaded audio files and lyrics for unauthorized use” and plans “opt-in experiences built around individual artists”, where participating artists get paid (Suno).

The lawsuit over v6

On Sep 18, 2026, Sony Music and Universal Music Group sued Suno again in federal court in Massachusetts. Their complaint alleges that v6 was partly built on outputs from Suno’s earlier models and argues that “V6 is not a fresh start; it is the fruit of the same poisoned tree.” Suno called the claims “fundamentally flawed on both the facts and the law” (Variety). For the full history, see the Suno, Udio and the label lawsuits timeline and what the lawsuits mean for you.

The user backlash

Many paying users were unhappy. MusicRadar reported that the response from Suno’s user community was “overwhelmingly negative”, citing posts on r/SunoAI in which users described v6 output as “muffled, dull and strangely lifeless” and “flatter, soulless and more similar-sounding”, some saying they had cancelled, and many asking for the old models back (MusicRadar). Some users speculate the smaller licensed dataset is the cause. MusicRadar notes that the exact training data has not been disclosed (MusicRadar). These are user opinions, not measurements.

How to tell if a song was made with Suno

  1. Look for the creator’s own statement, for example in the artist bio, a video description or an interview. That is the strongest evidence, and it is how our artist pages reach a “creator-disclosed” verdict. See how to tell if a song is AI.
  2. Check the streaming service’s label and credits. On Spotify, AI credits added through certain distributors show which roles, such as vocals or lyrics, were made with AI. They are in beta and visible only on mobile, in Song Credits and the Now Playing view (Spotify Support). Credits show AI use, not which tool was used. Our label pages cover each service.
  3. Don’t rely on the sound. Suno now runs only v6 models (MusicRadar). “It sounds like Suno” is a guess, not evidence.
  4. Treat “made with Suno” claims from third parties as reports. When press or fans name Suno as the tool and the creator hasn’t confirmed it, we write “reported” and list it as press evidence, not as a disclosed tool.

Sources

  1. Suno: Introducing v6 checked Oct 23, 2026
  2. MusicRadar: Suno has rebuilt its AI music models from scratch with licensed music checked Oct 23, 2026
  3. MusicRadar: Suno users slam its V6 update checked Oct 23, 2026
  4. Variety: Sony Music, Universal Music Group sue Suno over label-backed model checked Oct 23, 2026
  5. Spotify Support: AI credits on Spotify checked Oct 23, 2026