Gemini 3.1 Flash TTS Preview
Model overview
gemini-3.1-flash-tts-preview
Google's current low-latency Gemini 3.1 Flash TTS preview model.
audiospeechtext to speechvoice assistantenterprise access
Representative version
gemini-3.1-flash-tts-preview
| Company | |
|---|---|
| Release | Not disclosed |
| Release type | Preview release |
| Parameters | Not disclosed |
| Architecture | Not disclosed |
| Context | Not disclosed |
| Input modalities | text |
| Output modalities | audio |
| Tool use / function calling | Tool use: Not disclosed; Function calling: Not disclosed |
| Structured output / reasoning | Structured output: Not disclosed; Reasoning: Not disclosed |
| Vision / audio / video | Confirmed: Audio; Not shown: Vision, Video |
| Open weights / License | No open weights currently / weight license not disclosed google-gemini-3-1-flash-tts-preview-current · License not applicable |
| Vendor API | Available Gemini 3.1 Flash TTS Preview | Gemini API | Google AI for Developersgoogle-gemini-3-1-flash-tts-preview-current · 2026-08-10 |
| OpenRouter | Not separately listed on OpenRouter |
| Pricing | Official pricing page |
| Benchmark | No reliable public source |
| Public signals | No reliable public source |
| Use cases | voice assistant / enterprise API / audio and speech / speech |
| Claim evidence | Release event / Model specificationsGemini 3.1 Flash TTS Preview | Gemini API | Google AI for Developersgemini-3.1-flash-tts-preview · Gemini 3.1 Flash TTS Preview · gemini-3.1-flash-tts-preview |
OpenRouter
Pricing / context / availability
| OpenRouter | Not separately listed on OpenRouter |
|---|---|
| OpenRouter listing | Not separately listed in the current OpenRouter public list |
| Mapped version | gemini-3.1-flash-tts-preview google-gemini-3-1-flash-tts-preview-current |
| Pricing | Official pricing page |
| Context | Not disclosed |
| Speed/Latency | No reliable public source |
| Snapshot time | 2026-08-11T06:28:09.895Z |
| Source | View source |
Missing public information
Public information not yet available
Parameter scale not disclosedRelease date not disclosedNot listed on OpenRouterNo reliable benchmark sourceNo public model-card activity countersNo linkable model-specific reviewSpeed/latency not disclosed