Seed Audio vs Suno v5.5
Seed Audio 1.0 is 4 credits for voice-shaped reads. Suno Sounds v5.5 is 2 credits for songs. They are not substitutes.
Seed Audio 1.0 is 4 credits for voice-shaped reads. Suno Sounds v5.5 is 2 credits for songs. They are not substitutes.
Suno retired v5, v4.5 and v4 when v6 launched on 9 September. What v6 adds, why users say it sounds worse, and how to work around the gap today.
No. Firefly Generate Music is a licensed bed, not a Suno song with verses and a chorus. Use Firefly for a safe bed. Use Suno when the song is the product.
Warner settled with Suno and Udio; Universal settled with Udio; Suno–UMG stalled; Sony's suits continue. Watermarks and fingerprinting are the 2026 layer.
Octave 2 is not on Versely. Cartesia Sonic 3.5, Inworld TTS 2, ElevenLabs, and Gemini 3.1 Flash TTS are. Here is the September split.
Make a full track with Suno V6, V6 Mini or V6 Wild in Versely's Music studio, web and iOS: describe or write lyrics, pick a model, two takes for 3 credits.
extend_music needs a prior Suno audioId. A new generate_music prompt is a different job, and using it as an extend wastes credits.
Suno Sounds V5.5 writes audio. If we see the mouth, pick a talking or lipsync row instead of laying this on a closed mouth.
cover_music reinterprets a track you already have, then you attach it. Covering a maybe, or covering before picture lock, spends a generate on a bed the cut will not keep.
create_music_video builds a waveform video from a generate_music taskId and audioId. Rendering it for a discarded song, or before you have a track lock, is a visualizer you will not upload.
extend_music continues a prior Suno track from an audioId. Extending before picture lock, or extending a song you will not mix, pays for seconds the cut will not use.
separate_music_vocals needs a Suno taskId and audioId. Splitting a discarded generate, or splitting before picture lock, yields stems for a song you will not attach.
generate_lyrics returns text. generate_music then spends a track. Writing lyrics before picture lock, or scoring a miss with them, pays for words and a song the cut will not hold.
Suno added BMG in August, but the licensed model has not shipped and V5 still powers the product. What must be true before an AI track runs in a paid ad.
Generated tracks carry a glassy 4–7 kHz sheen that bites on phones. The band to cut, how much, and why a mix pass beats another prompt.
Universal and Warner settled with Udio, Warner with Suno, Sony with neither. UMG v. Suno continues and no merits ruling on AI music training exists.
An AI cover doesn't compose a new song — it reinterprets a track you supply. That single mechanical fact is why the whole question is source rights.
ElevenLabs shipped chunk-based Music v2 and a performance-preserving Dubbing v2, then retired its v1 speech models. What changed, and how to match briefs.
Suno v6 replaced v5 on 9 Sept. ElevenMusic v2.5 and Lyria 3.5 shipped, Stable Audio 3 went open, and Udio still has no export. Pick by job here.