Gemini 3.1 Flash TTS (preview)
Gemini 3.1 Flash TTS (preview) is Google's text-to-speech model in the Gemini 3.1 family, generating natural, low-latency speech from text prompts.
input · usd / 1m tok
$1.00
output · usd / 1m tok
$20.00
modalities · in → out
takes text in, gives audio out
released
apr 15, 2026
pricing
base api ratesusd per 1m tokens
- input
- $1.00
- output
- $20.00
providers
Google hosts Gemini 3.1 Flash TTS (preview). Impossibl routes your request intelligently and handles failover automatically when a provider is down.
- Google
specifications
takes text in, gives audio outgoogle/gemini-3.1-flash-tts-preview
- creatorGoogle
- model typeText to speech
- context windownot published
- maximum outputnot published
- input
takes text in, gives audio out
- outputaudio
- tool callingnot verified
- releasedapr 15, 2026
- endpoint
/v1/audio/speech
unknown means the public catalog does not establish that fact. a model's documented capabilities can differ from what a particular api supports. see the model documentation for integration details.
available voices
Zephyr, Puck, Charon, Kore, Fenrir, Leda, Orus, Aoede, Callirrhoe, Autonoe, Enceladus, Iapetus, Umbriel, Algieba, Despina, Erinome, Algenib, Rasalgethi, Laomedeia, Achernar, Alnilam, Schedar, Gacrux, Pulcherrima, Achird, Zubenelgenubi, Vindemiatrix, Sadachbia, Sadaltager, Sulafat
benchmarks
benchmark results are not available for this model yet.
compare Gemini 3.1 Flash TTS (preview) with other models
more from Googleusd / 1m tok · in / out
- google/gemini-3.8-flash-tts$0.50 / $9.00compare →
frequently asked questions
What is Gemini 3.1 Flash TTS (preview)?
Gemini 3.1 Flash TTS (preview) is Google's text-to-speech model in the Gemini 3.1 family, generating natural, low-latency speech from text prompts. It adds expressive audio tags for precise narration control alongside steerable prompts and improved naturalness, controllability, and multilingual support over earlier Gemini TTS models.
How much does Gemini 3.1 Flash TTS (preview) cost?
Gemini 3.1 Flash TTS (preview) costs $1.00 per million input tokens and $20.00 per million output tokens through the Impossibl API. All rates are in USD.
What inputs and outputs does Gemini 3.1 Flash TTS (preview) support?
Gemini 3.1 Flash TTS (preview) accepts text as input. Gemini 3.1 Flash TTS (preview) returns audio. Available voices include Zephyr, Puck, Charon, Kore, Fenrir, Leda, Orus, Aoede, Callirrhoe, Autonoe, Enceladus, Iapetus, Umbriel, Algieba, Despina, Erinome, Algenib, Rasalgethi, Laomedeia, Achernar, Alnilam, Schedar, Gacrux, Pulcherrima, Achird, Zubenelgenubi, Vindemiatrix, Sadachbia, Sadaltager, and Sulafat.
How do I use Gemini 3.1 Flash TTS (preview) through an API?
Gemini 3.1 Flash TTS (preview) is available through the Impossibl API. Use google/gemini-3.1-flash-tts-preview as the model identifier with /v1/audio/speech. The quickstart explains how to create an API key and send your first request.
When was Gemini 3.1 Flash TTS (preview) released?
Google released Gemini 3.1 Flash TTS (preview) on April 15, 2026.
this page describes Gemini 3.1 Flash TTS (preview) as listed by the impossibl public api. prices and availability come from that catalog, refreshed here every five minutes. this is an impossibl offering, not a comparison of independent hosting-provider quotes. model descriptions and release dates, where available, use the creator sources linked under the answers above.
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