EN / 中文
Model prices / Google / Gemini 3.1 Flash TTS Preview

Gemini 3.1 Flash TTS Preview

Google · released 2026-04-15

The official API price of Gemini 3.1 Flash TTS Preview is $1 per 1M input tokens and $20 per 1M output tokens (as of 2026-11-12). Context window: 8.2K tokens, up to 16.4K output tokens per request. 2 providers sell it, none below the official price.

Price by providerUSD per 1M tokens

ProviderInputOutputCachedNotes
GoogleOfficialgemini-3.1-flash-tts-preview
$1$20—OfficialOfficial docs
KKenarigemini-3-1-flash-tts
———Official docs

Providers are those listed by models.dev. This site has not vetted them one by one; each provider's own page has the binding price.

About

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

Description from models.dev.

Specs

Type
Speech
Context
8.2K
Max output
16.4K
Input
Text
Output
Audio
Reasoning
Yes
Tool calling
No
Structured output
—
Knowledge cutoff
2025-01
Open weights
No
Released
2026-04-15

Source

Prices and specs come from models.dev (MIT licence), updated 2026-11-12. Each provider's name links to its official docs. A provider priced at 0 usually includes the model in a subscription; it is not necessarily a free API.