Gemini 3.1 Flash Live Preview

Mar 2026
Retires Nov 17, 2026Move toGemini 3.8 LiveNewer version
Gemini 3.1 Flash Live Preview
Compare in
on
$0.005 / $0.018per minute in / out
3 sfirst audio?
37.7τ-Voice
Mar 2026released
en, es, fr +97Languages
Provider-stated input/output audio minute components; text, tools and session/backend charges remain separate.Price covers

Benchmarks

in Speech & Voice
Full-Duplex-Bench · AA subset v1/v1.574.3#21
AA Speech Agent Arena · overall · Elo1,066.4#2
AA Speech Agent Arena · overall · Task Success71.8#15
AA Speech Agent Arena · agentic · Elo1,038.4#4
AA Speech Agent Arena · non-agentic · Elo1,150.6#1
τ-Voice · AA · aggregate37.7#9
τ-Voice · AA · airline54.7#8
τ-Voice · AA · retail36.3#9
τ-Voice · AA · telecom22.2#10
τ³-voice · Sierra · 1.0.0 · standard · retail45.6#2
τ³-voice · Sierra · 1.0.0 · standard · airline64#1
τ³-voice · Sierra · 1.0.0 · standard · telecom21.9#1
τ³-voice · Sierra · 1.0.0 · standard · overall43.8#1
τ³-voice · Sierra · 1.0.1 · custom · banking knowledge11.3#2

FAQ

Is Gemini 3.1 Flash Live Preview free to use?›

There is no free API; the cheapest paid price is $0.005 per 1M input tokens.

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

#9 of 17 in Realtime.

Is Gemini 3.1 Flash Live Preview better than GPT Realtime 1.5?›

On τ-Voice · AA · aggregate, Gemini 3.1 Flash Live Preview scores 37.7 vs 38.8 — lower.

How can I use Gemini 3.1 Flash Live Preview?›

Through the Google API.

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

Released 2026-03-11. It has been superseded by Gemini 3.8 Live.

Is Gemini 3.1 Flash Live Preview open source?›

No, Gemini 3.1 Flash Live Preview is a closed model available through an API.

What is Gemini 3.1 Flash Live Preview?›

Gemini 3.1 Flash Live Preview is a closed speech & voice model from Google, released Mar 2026.

What are the best alternatives to Gemini 3.1 Flash Live Preview?›

GPT Live 1 (better).