Lyria 3.5 vs Suno v6 for ad background music

For ad background music produced by a pipeline, Lyria 3.5 is the better fit: it is a per-song API at $0.08 with documented output specs. Suno v6 fits a human producer working in an app, and its commercial-use rights depend on your paid plan. Neither page I read settles brand-licensing questions for you, so treat the table below as a workflow comparison, not legal advice.

Side by side

Everything in the table is from the vendor's own page, except the Suno v6 training-data row, which comes from TechCrunch.

Where Lyria 3.5 wins for ads

Ad work is repetitive: one brief, many cut lengths and moods. A per-song API charges by the song, so you can generate twenty candidates for $1.60 at Google's list ($0.08 x 20) and pick one. Because Lyria takes timestamps like [0:00-0:10] and section tags in the prompt, you can ask for a sting at the start and a resolve at the end of a 15-second spot.

The block on artist voices and copyrighted lyrics is a feature here. A brand cannot ship a track that sounds like a named singer, and the model refuses to try.

Where Suno wins

Suno is built for iteration by a person. Pro lists 2,500 credits and 20 downloads a month for $8; Premier lists 10,000 credits and 60 downloads for $24, plus Suno Studio and 30-minute uploads. If a creative director wants to audition many options and download a few, the app suits that better than an API.

• Free tier: 50 credits a day on free models, no commercial rights. Do not use free-tier tracks in ads.
• Download caps matter: 20 downloads a month on Pro means 20 deliverable tracks, not 20 attempts.
• TechCrunch reports the v6 models were not trained on the data used for earlier versions, older models are to be retired, and Sony and UMG suits are still active.

What Sume offers

Sume ships Lyria 3.5, not Suno. Music 1.0 runs on Lyria 3.5 through POST /v1/music-router/generate, at a fixed $0.125 per accepted generation. It rejects duration and non-empty negative_prompt, so you steer length and exclusions in the prompt. If you need Suno's app workflow, you use Suno directly; Sume does not resell it.

Before an ad runs, have your legal team read the current terms of whichever service you use. The pages above tell you what the tools do, not what you may do with the output.