Gemini 3.1 Flash TTS

Google · audio

Pricing: $0.50 per 1K characters

Google Gemini 3.1 Flash text-to-speech.

Pricing

$0.5012 per 1K characters. Billing is per 1K characters, not per token: each 1K characters is charged at this rate, from one llmka.dev balance.

Prices checked 2026-11-04

Context and limits

The context window is not listed in the catalog snapshot; check the model documentation for the current limit.

The maximum output length is not listed in the catalog snapshot.

When to use Gemini 3.1 Flash TTS

Gemini 3.1 Flash TTS (model ID `tts-gemini-3-1-flash`) takes text input and returns audio output.

Supported features in the catalog: JSON-schema structured output.

Use Gemini 3.1 Flash TTS for speech or audio processing.

FAQ

How much does Gemini 3.1 Flash TTS cost?

$0.5012 per 1K characters. Billing is per 1K characters, not per token: each 1K characters is charged at this rate, from one llmka.dev balance.

What is the context window and output limit of Gemini 3.1 Flash TTS?

The context window is not listed in the catalog snapshot; check the model documentation for the current limit. The maximum output length is not listed in the catalog snapshot.

How do I get access to Gemini 3.1 Flash TTS?

Create an API key in the llmka.dev dashboard and send requests to model "tts-gemini-3-1-flash" at https://api.llmka.dev/v1. The endpoint is OpenAI-compatible. One key and one balance cover all models on the gateway.

Links

All models and prices · API documentation · Quick start

Available through the llmka.dev gateway: OpenAI- and Anthropic-compatible endpoints, one key, USDT top-up.