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Gemini 3.1 Flash TTS Preview

google·google/gemini-3.1-flash-tts-preview·GA·Closed·gemini-flash series·Speech / Audio

Low-latency speech generation with steerable prompts and expressive audio tags

At a glance
Official price$1.00 / $20.00 per 1M
Cache read · Google
Lowest paid$1.00 / $20.00
Google First-party
Context8,192
Output limit16,384
Capabilities
ReasoningTool use? Structured outputTemperatureAttachments
Modalities
Text
Knowledge cutoff2025-01
Released / updated2026-04-15 / 2026-04-15

Quality & performance

Artificial Analysis doesn't cover this model (267 of 2059 have data). Quality data comes from independent evals covering widely used models.

Available at 1 providers1 with public prices

ProviderTierInputOutputCache readCache writeContextOutput limitStatus
GoogleOfficialFirst-party$1.00$20.008,19216,384

Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.

Your usage cost

1Google · Official$1,200.00
The cheapest paid channel is official.

Related models

Price historyone sample accumulated per data sync

Input listOutput listMin blended
$20.00$02026-08-052026-08-132026-08-05 · Input list $1.002026-08-06 · Input list $1.002026-08-07 · Input list $1.002026-08-08 · Input list $1.002026-08-09 · Input list $1.002026-08-10 · Input list $1.002026-08-11 · Input list $1.002026-08-12 · Input list $1.002026-08-13 · Input list $1.002026-08-05 · Output list $20.002026-08-06 · Output list $20.002026-08-07 · Output list $20.002026-08-08 · Output list $20.002026-08-09 · Output list $20.002026-08-10 · Output list $20.002026-08-11 · Output list $20.002026-08-12 · Output list $20.002026-08-13 · Output list $20.002026-08-05 · Min blended $5.752026-08-06 · Min blended $5.752026-08-07 · Min blended $5.752026-08-08 · Min blended $5.752026-08-09 · Min blended $5.752026-08-10 · Min blended $5.752026-08-11 · Min blended $5.752026-08-12 · Min blended $5.752026-08-13 · Min blended $5.75