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. Suno Sounds v5.5 is 2 credits. Both are text-to-audio. They are not substitutes. Seed is the voice-and-foley-shaped read. Suno is the song. Picking the cheaper sticker for a VO is how you get a chorus. Picking the dearer sticker for a bed is how you get a speaker.
Seed Audio 1.0 is ByteDance, content type audio, category text-to-audio, audio on, 4 credits. Catalog description: high-quality, natural-sounding text-to-speech with preset voices, optional reference audio (@Audio1–@Audio3) or a reference image, and speed, pitch, and volume controls. That is a read you can steer. It is not a full-mix single.
Suno Sounds v5.5 is Suno, content type audio, category text-to-audio, audio on, 2 credits. Catalog description: latest sound generation model with improved quality, looping, tempo, key controls, and lyrics subtitle capture. Tempo and key and lyrics are song furniture. Looping is bed furniture. This is not a VO row that happens to be cheaper.
Suno v5.5 as a flagship music model was released 26 March 2026 (Suno's announcement). The Versely card you confirm is Sounds v5.5 at 2 credits. There is no second slug.
Voice-shaped versus song-shaped
Write the job on paper before you open either row.
Seed Audio when the file has to be words a person could have said: a founder line, a tutorial VO, a character read, a product claim, a foley-adjacent sting that is still speech-shaped (a laugh, a breath, a short vocal). Preset voices. Optional reference audio. Optional reference image. Speed, pitch, volume. That control list is a narrator’s desk, not a DAW.
Suno Sounds when the file has to be music: a 15-second bed, a loop under captions, a hook with lyrics you will burn as karaoke type, a tempo you will cut to. Lyrics subtitle capture is the tell. If the model is offering you lyrics as an object, you are in a song.
The failure both ways:
- Prompting Suno with a 40-word product paragraph and no musical brief. You may get singing. You may get a jingle of the claim. You will not get a dry VO you can lipsync cleanly.
- Prompting Seed with “upbeat lo-fi, 90 BPM, loopable, no vocals.” You may get a voice trying to describe the bed. You will not get a stem you can duck under speech.
Text-to-speech is Seed’s home. AI music generator is Suno’s home. AI text-to-speech is the VO door. Using the music tool for speech because 2 is less than 4 is a category error, not a saving.
Foley is the grey band people dump on Seed. Seed’s published description is TTS with references and mix knobs, not a whoosh library. A dedicated sound-effect row is the whoosh. Seed can do vocal non-speech; it is still a voice model. If the brief is “the can opens,” do not make a narrator say “the can opens” on either row and call it foley.
Neither card is a talking head. Content type is audio. If we see a mouth, you still need lipsync or a native-audio video generate. Native audio is the video family. These two stickers will not open a jaw.
Two credits is not the cheaper VO
Suno at 2 credits is cheaper as a song. It is not a discounted Seed. Four credits on Seed is the VO sticker. Two credits on Suno is the music sticker. Compare them only when you were actually indifferent between a read and a track — which you are not, if you have a script.
No duration chips on either published row. No resolution. You are not buying 1080p. Length follows what the model emits from the prompt, not a 5s / 10s picker. Write the line you will ship. A 400-word Seed prompt is a long read you will have to cut. A Suno prompt that asks for a three-minute anthem is not a 15-second Reels bed.
Seed’s reference slots (@Audio1–@Audio3, optional image) are how you keep a speaker or a tone without jumping to a dedicated clone row. They are not a music stem import. Suno’s looping, tempo, and key controls are how you make a bed that can sit under picture. They are not VO pace controls. Speed/pitch/volume on Seed is how you make a read sit; they are not a key signature.
Lay either file under video with add music to video or add a voiceover. Caption after picture exists. Add captions to video. Suno’s lyrics subtitle capture can feed karaoke-style type; it does not replace burned-in captions on the video encode.
Label deals are not a cleared model
Music is the row where people confuse a catalog sticker with a licence. Do not.
Suno v5.5 sits in a labelled industry fight. As of 4 September 2026: Warner settled with Suno and Udio; Universal settled with Udio in October 2025, with a jointly licensed platform due in 2026; Suno–UMG talks had stalled; Sony suits continued. Suno has been adding audio watermarks and screening uploads with Audible Magic and Musixmatch. Those facts are from Billboard’s AI music timeline, NPR, 18 August 2026, and Engadget on Suno watermarks. This page reports no settlement after those reports.
A 2-credit generate is not a sync licence for a client’s paid campaign. A watermark is not a clearance. Screening uploads is not a promise that your prompt did not describe a living artist’s catalogue. If the brief is “sounds like [named hit],” you are in the problem the suits are about. Write a brief that names mood, tempo, and instrumentation without naming the record you cannot license.
Seed Audio is ByteDance TTS. It does not inherit Suno’s label story, and it does not inherit a music licence either. A cloned or referenced voice still needs the right to use that voice. Four credits is not a talent release.
EU Article 50 marking still applies to AI-generated audio when you are in scope. Deployer deepfake labels are about authentic-looking (or sounding) fakes of people. A song bed is usually not a deepfake of a person. A Seed read in a named founder’s voice can be. Article 50 disclosure.
Pick the object, then the sticker
If the timeline has a talking script, Seed (or another TTS row). If the timeline has a chorus, a loop, or a bed that must sit in key, Suno. If the timeline has both, you will confirm twice: 4 + 2, not a blended 2.
If you needed a whoosh, neither of these is the dedicated SFX sentence. If you needed a mouth, neither of these is lipsync. If you needed native-sounding dialogue inside the picture, pick a video row with audio on — Veo 3.1, Seedance 2.0 — and stop trying to mix a VO into a silent generate in the prompt.
Run the matching audio card from the catalog. Read the description on the confirm screen. If you see tempo, key, looping, lyrics — you are in Suno. If you see preset voices, reference audio, speed/pitch/volume — you are in Seed. The 2-versus-4 delta is the last thing to look at.
FAQ
Is Suno Sounds v5.5 a cheaper text-to-speech model?
No. It is a 2-credit sound/song row with looping, tempo, key, and lyrics subtitle capture. Dry VO is Seed Audio at 4 credits, or another TTS slug.
Does Seed Audio write full songs?
The published description is TTS with preset voices and reference controls. Treat it as a read. A musical bed is Suno’s job on this pair.
Do either of these clear label rights?
No. Warner/UMG/Sony context is industry news, not a licence attached to 2 credits. A generate is not a sync deal. Do not invent a settlement past what Billboard, NPR (18 August 2026), and Engadget already reported.