Gemini 3.1 Flash TTS by Google, fast and expressive text-to-speech with granular control tags and 70+ language support for natural narration.
Available on
Pricing from$1.00/ 1M input$0/ 1M output8Kcontext
Privacy
- ZDR
- Training
- No
- Region
- US
Run OmniRoute on Gemini 3.1 Flash TTS Preview
OmniRoute is an open-source gateway you run yourself: one endpoint in front of 350 providers, with quota-aware fallback, token compression, and MCP support, built for Claude Code, Codex, Cursor, OpenCode, Cline and Copilot. Opper is listed in its provider catalogue, so you paste your Opper key once under Providers and every agent you point at OmniRoute can pick from Opper's 700+ models, EU-hosted routes included, alongside whatever else you have configured.
RunOmniRouteonin
OmniRouteoninConnect OmniRoute to Gemini 3.1 Flash TTS Preview
Add Opper in OmniRoute
In OmniRoute (v3.8.51 or later), open Providers → API key providers, pick Opper and paste your key; on older builds add a custom OpenAI-compatible provider with base URL https://api.opper.ai/v3/compat. Then pick Gemini 3.1 Flash TTS Preview.
Model id
Where you can run it
Gemini 3.1 Flash TTS Preview runs on the routes below. Route only to EU providers when your data has to stay in Europe.
| Provider | Region | Zero data retention | Training | Input | Output | Cache read |
|---|---|---|---|---|---|---|
| US | No | $1.00 | $0 | Input price |
The model
Run OmniRoute on other models
Step-by-step setup for running OmniRoute on each of these models through Opper.
GPT-6 SolGPT-6 LunaClaude Opus 5.5Grok 4.7MiMo V2.6 ProLing-3.0-flash-FinDeepSeek V4.1 FlashLing-3.0-flash-VLGPT-6 AstraQwen3.8-MaxGemini 3.8 FlashMuse Spark 1.3 ContributorClaude Fable 5.1GLM-5.3-FlashQwen3.8 Flash-NextGLM-5.3Qwen3.8 27BDeepSeek V4 ProGemini 3.7 FlashGrok 4.6Qwen3.8-2.4T-A95BInkling-SmallClaude Opus 5Gemini 3.6 FlashKimi K3GPT-5.6 SolGPT-5.6 TerraGPT-5.6 LunaGrok 4.5Claude Sonnet 5GLM-5.2Kimi K2.7 CodeClaude Fable 5MiniMax M3Claude Opus 4.8Qwen3.7-MaxKimi K2.6Claude Opus 4.7GLM 5.1Gemini 3.1 Pro PreviewClaude Sonnet 4.6GLM 4.7GPT-5Grok 4.20 ReasoningDeepSeek V4 Flash VisionHy4 PreviewQwen3.8 FlashMiniMax H3MiMo V2.6 FlashSCX-coderMAGPiEGreen LGreen RSee all 700+ models
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