Project AURIONAI Use-Cases Research & Innovation
speech synthesis

Gemini 3.1 Flash TTS

Earlier Gemini TTS model.

GoogleGoogleUSA
Google
Levelmodel
Classspeech synthesis
Parametersnot in the notes
Contextnot in the notes
ReleasedApr 2026
Opennessproprietary
Runs onnot in the notes
Statusactive

Lineage

successor
Gemini 3.1 Flash TTS to Gemini 3.8 Flash TTS: successor, medium confidenceGemini 3.1 Flash TTSGemini 3.1 Flash TTSGoogle, Apr 2026Gemini 3.8 Flash TTSGemini 3.8 Flash TTSGoogle, Sep 2026
GoogleGemini 3.8 Flash TTS is a child (successor)medium confidencenotes
Where this comes from
Parent and child relations from model cards, Hugging Face base_model fields and the genealogy tables of the research notes. The tree shows two generations each way, 2 models. Confidence and evidence are the notes' own.

R&D Topics

Large-scale zero-shot text-to-speechproduced by

Identity

Developer
Google
Family
not in the notes
Released
Apr 2026 sourcessecondary report
Weights published
–
Record checked
10 Oct 2026
Where this comes from
Developer and dates from the research notes. Release date is the vendor's public announcement; weights date is when open weights were published.

Architecture and Size

Architecture
not in the notes
Total parameters
– sources
Active parameters
–
Checkpoint parameters
–
Context length
not in the notes
Input
text
Output
audio
Where this comes from
Parameter counts as the developer states them. Where the checkpoint holds a different total, both are shown (register A16).

Openness and Access

Openness
proprietary
Licence
Proprietary sources
Access routes
not in the notes
Where this comes from
The licence file governs over registry tags and aggregator labels.

Deployment

Runs on
not in the notes
Footprint
not in the notes
Runtimes
not in the notes
Where this comes from
Deployment tiers and runtimes as named in the notes. Footprint is the notes' figure, not a measurement by AURION.

Indonesia

Indonesian support
not stated
Regional languages
not in the notes
Jakarta hosting
unknown
Languages
not in the notes
Where this comes from
Indonesia fields are carried on every model; unknown is an allowed value.

Benchmark Results

The notes record no benchmark result for this model.

Industry Use Cases

No industry use case links this model.

Sources

  1. Text to Speech Leaderboard - Top AI Speech Models | Artificial Analysis artificialanalysis.ai https://artificialanalysis.ai/text-to-speech/leaderboard

To cite this page: Project AURION, AI Use-Cases Research & Innovation, "Gemini 3.1 Flash TTS", https://aurion.semai.id/models/google-gemini-3-1-flash-tts/, records of October 2026.