v6 launched on September 9, 2026 and replaces v5.5. Here is the point-by-point difference, where you can actually hear it, and how to migrate your prompts without losing anything.
Sound: v6 — higher fidelity and speed; v5.5 — good but behind.
Editing: v6 — edit part of a track with words; v5.5 — mostly regenerate and Extend.
Stems: v6 — instrument isolation and re-use; v5.5 — limited.
References: v6 — text, image, video; v5.5 — text and audio.
Status: v6 — current; v5.5 — being retired.
Where you actually hear it
The change shows most on vocals and mix detail: less “cotton” in the highs, cleaner stereo, tidier transitions between sections. But because the training data changed, v6 has a different “character” — some genres and vocal types land differently than you got used to on v5.5. It is not “better/worse,” it is different: worth re-listening to your reference prompts.
What about artist imitation
v6 is trained on licensed music, so direct “sing like ” requests are refused more firmly than before. The working approach is the same as on v5.5, only now it matters more: describe the style in words (era, vocal, instruments, production, BPM) rather than naming the artist. Our ready prompts are built exactly this way and pass the v6 filter.
How to migrate prompts from v5.5 to v6
1. Save your working v5.5 prompts and favourite tracks while the model is available.
2. Run your key prompts on v6 and compare with the old result.
3. Tweak the vocal/production descriptors if the sound drifted — v6 hears the same words differently.
4. Use the new tools: word-level editing and stems instead of endless regeneration.
Don’t want to re-tune prompts by hand? The catalog has ready style prompts for hundreds of artists, described in words (no names), that work on v6.
Yes — v5.5 is being retired, and v6 is faster, cleaner and adds word-level editing, stems and references. The only reason to linger is a specific v5.5 “sound” you like; save those tracks while the model is available.
Will my v5.5 prompts work on v6?
Mostly yes, but v6 is trained on a different (licensed) dataset, so the same line can sound different. Re-check your key prompts and tweak the descriptors if needed.
Does v6 sound better than v5.5?
Suno claims higher fidelity and speed. By ear the difference shows most on vocals and mix detail; the model’s “character” also differs because the data changed.
Can I still generate on v5.5?
For now yes, but Suno is phasing out the older models. Finished tracks stay in your library; make new songs on v6.