Google launches Lyria 3.5 music model in Flow Music
Gemini API GA follows
Confirmed
Status
- Claim
Confirmed
- Our reporting
- High confidence
- Importance
- 3 of 5
- Last verified
- 29 September 2026
Your AI and this story
- GPT-6 Astra90 days after its cutoff
- Claude Opus 5.529 days after its cutoff
- Gemini 4 Hydrogen120 days after its cutoff
- Grok 4.759 days after its cutoff
None of these four assistants can know about it. The closest, Claude Opus 5.5, stops 29 days before it.
Key facts
- Launched 2026-07-29 in Google Flow Music (the former ProducerAI)
- Improvements: musicality, lyric quality and prompt adherence, vocal expressiveness and pronunciation, tempo and duration control
- Gemini API id lyria-3.5 (Stable, Interactions API), GA 2026-09-03; $0.08 per song, no free tier
- 44.1 kHz stereo MP3/WAV, text + image input, SynthID watermark
- Lyria 3 Clip/Pro previews now labelled legacy on the Gemini API pricing page
What happened
Lyria 3.5 replaced Lyria 3 Pro behind Google Flow Music’s song generation on launch day, at no extra cost to Flow Music users. About five weeks later it reached general availability for developers in the Gemini API’s Interactions API. As of 2026-09-29 it was not yet listed on Vertex AI (Gemini Enterprise Agent Platform), which still offers Lyria 3 previews and Lyria 2.
Why it matters
Google now ships a GA, watermarked, pay-per-song music model to developers, something Suno (web app only, API only “being explored”) and Udio (no public API) do not offer.
Sources
5 sources from 4 sites. Numbers match the chips in the text.
5 sources: 4 primary, 1 press
Primary
- Google: Lyria 3.5 in Google Flow Musicblog.google, official
- Lyria 3.5 model carddeepmind.google, official
- Gemini API music generation docsai.google.dev, docs
- Gemini API pricingai.google.dev, docs
Press
- Tech Times on Lyria 3.5techtimes.com, press
Changes
- Filed
