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GoogleMistral AIAudio matchupSpeech output

Gemini 3.1 Flash TTSvs.Voxtral Mini TTS

Which model is better?

Gemini 3.1 Flash TTS does better in independent tests, while Voxtral Mini TTS is available with open weights.

Independent tests
Gemini 3.1 Flash TTSahead1 of 2
Voxtral Mini TTS0 of 2
Artificial Analysis, DesignArena
Popularity
Gemini 3.1 Flash TTSahead44
Voxtral Mini TTS29
out of 100
Weights and access
Gemini 3.1 Flash TTSproprietary
Voxtral Mini TTSopenopen, local
Price
Gemini 3.1 Flash TTSn/a
Voxtral Mini TTS$16 per 1M characters
verbatim from the provider

Pick Gemini 3.1 Flash TTS for

Artificial Analysisleaning DesignArenamore popular

Pick Voxtral Mini TTS for

open weightsruns locally

Shared tests

Independent evaluators and leaderboards only, the newest shared snapshot per evaluator. With 95 % ranges a lead counts when they do not overlap; for hit rates, when it holds in a 95 % test. Without any uncertainty figure at most “slightly ahead”.

Artificial Analysis

Gemini 3.1 Flash TTS ahead

Artificial Analysis Provider Voice Arena preference

Gemini 3.1 Flash TTS1,213
Voxtral Mini TTS1,089

95 % ranges 1,202 to 1,224 and 1,077 to 1,101, as of November 3, 2026

Source · latest November 3, 2026

DesignArena

Gemini 3.1 Flash TTS slightly ahead

DesignArena TTS Arena Elo

Gemini 3.1 Flash TTS1,424
Voxtral Mini TTS992

as of October 28, 2026

Source · latest October 28, 2026

All data side by side

Prices are verbatim from the provider, because audio models bill per minute, character or token.

Gemini 3.1 Flash TTSVoxtral Mini TTS
TaskSpeech outputSpeech output
DeveloperGoogleMistral AI
StatusPreviewActive
Weightsproprietaryopen
Runs locallynoyes
Licensen/aCC BY-NC 4.0
Pricen/a$16 per 1M characters
Popularity (out of 100)4429

More comparisons with Gemini 3.1 Flash TTS and Voxtral Mini TTS

Gemini 3.1 Flash TTSvs.Fish Audio S2 ProGemini 3.1 Flash TTSvs.Kokoro-82MGemini 3.1 Flash TTSvs.Sonic 3.6Gemini 3.1 Flash TTSvs.Eleven v3GPT-4o Mini TTSvs.Gemini 3.1 Flash TTSEleven v3vs.Voxtral Mini TTSGPT-4o Mini TTSvs.Voxtral Mini TTSVoxtral Mini TTSvs.Sonic 3.6Voxtral Mini TTSvs.Fish Audio S2 Pro

All audio models compared