Gemini 3.1 Flash TTS

Apr 2026
Gemini 3.1 Flash TTS
Compare in
onAA TTS provider voice
$1 / $20per 1M in / out
1,213arena Elo
Apr 2026released
Exact native tariff; see source for billing scope.Price covers

Ranking?

Full ranking →
1Eleven v4 Turbo1,334.52Eleven v41,331.33Qwen Audio 3.1 TTS Plus1,306.34Sonic 3.61,290.15Gemini 3.8 Flash TTS1,277.8
···
15StepAudio 2.5 TTS (Aug 2026)1,213.916Gemini 3.1 Flash TTS1,21317Luna TTS1,204.6

Strong at

A
Speech & Voice#16 of 96

History

3 versions
1,0501,1001,1501,2001,2501,300Jan 26Apr 26Jul 26Oct 26Release dateAA TTS provider voice2.53.13.8
1,0501,1001,1501,2001,2501,300Jan 26Apr 26Jul 26Oct 26Release dateAA TTS provider voice2.53.13.8

Benchmarks

in Speech & Voice
AA TTS provider voice1,213#16

FAQ

Is Gemini 3.1 Flash TTS free to use?›

There is no free API; the cheapest paid price is $1 per 1M input tokens.

How good is Gemini 3.1 Flash TTS, and what is it best at?›

#16 of 96 in Text to speech. Strongest at: Speech & Voice.

Is Gemini 3.1 Flash TTS better than StepAudio 2.5 TTS (Aug 2026)?›

On AA TTS provider voice, Gemini 3.1 Flash TTS scores 1,213 vs 1,213.9 — about the same.

How can I use Gemini 3.1 Flash TTS?›

Through the Google API.

When was Gemini 3.1 Flash TTS released? Is there a newer version?›

Released 2026-04-15. It is the current version in its line.

Is Gemini 3.1 Flash TTS open source?›

No, Gemini 3.1 Flash TTS is a closed model available through an API. The closest open-weights option here is Fish Audio Drama 3 Preview.

What is Gemini 3.1 Flash TTS?›

Gemini 3.1 Flash TTS is a closed speech & voice model from Google, released Apr 2026.

What are the best alternatives to Gemini 3.1 Flash TTS?›

Simba 3.2 (better), Fish Audio Drama 3 Preview (open weights).