# Gemini 3.1 Flash TTS Preview

Gemini 3.1 Flash TTS Preview is a model from Google, first recorded on 7 Oct 2026; its release date is not established. The context window is 8,192 tokens. Pricing is $1.00 (text) per million input tokens and $20.00 (audio) per million output tokens.

- Developer: Google
- Id: gemini-3.1-flash-tts-preview
- Sighting: 2026-10-07T19:45:27.953Z
  - [evidence link](https://models.dev/#gemini-3.1-flash-tts-preview)
- Status: Released
- Official announcement: 2026-04-15
  - [evidence link](https://deepmind.google/blog/gemini-3-1-flash-tts-the-next-generation-of-expressive-ai-speech/)
- Canonical: https://alexgetman.com/models/google/gemini-3-1-flash-tts-preview/

## Questions

### What is the context window of Gemini 3.1 Flash TTS Preview?

The context window is 8,192 tokens.

### How much does Gemini 3.1 Flash TTS Preview cost?

Pricing is $1.00 (text) per million input tokens and $20.00 (audio) per million output tokens.

### When was Gemini 3.1 Flash TTS Preview released?

Its release date is not established. Signal Forge first recorded it on 7 Oct 2026.

## Evidence links

- [Gemini · deprecations](https://ai.google.dev/gemini-api/docs/deprecations?hl=en)
- [review](https://aistudio.google.com/api-reference/models)
- [review](https://aistudio.google.com/docs/changelog)
- [review](https://aistudio.google.com/docs/deprecations)
- [gemini-model-index](https://aistudio.google.com/docs/models/gemini-3.1-flash-tts-preview)
- [gemini-pricing](https://aistudio.google.com/docs/pricing)
- [vertex-google-models](https://console.cloud.google.com/vertex-ai/publishers/google/model-garden/gemini-3.1-flash-tts-preview)
- [google-articles](https://deepmind.google/blog/gemini-3-1-flash-tts-the-next-generation-of-expressive-ai-speech/)
- [models-dev](https://models.dev/#gemini-3.1-flash-tts-preview)
- [OpenCode · discovery](https://opencode.ai/data/google/gemini-3-1-flash-tts-preview)

## Signals

- [Gemini 3.1 Flash TTS Preview: Provider API status update](https://alexgetman.com/signals/2026/09/24/gemini-3-1-flash-tts-preview/)