# Gemini 3.8 Flash TTS API pricing

GOOGLE GEMINI / AUDIO

> Gemini 3.8 Flash TTS via one OpenAI-compatible key: $0.32 in / $5.67 out per 1M tokens. Model ID gemini-3.8-flash-tts, base URL https://api.outrun.to/v1.

$0.32 in / $5.67 out per 1M tokens

Gemini 3.8 Flash TTS costs $0.32 per 1M input tokens and $5.67 per 1M output tokens. Call it with model ID `gemini-3.8-flash-tts` at `https://api.outrun.to/v1` using one prepaid Outrun key. Prices as of October 30, 2026.

`gemini-3.8-flash-tts`

USD / 1M TOKENS

## How much does Gemini 3.8 Flash TTS cost per 1M tokens?

[Get a key ↗](https://outrun.to/overview)

Standard

| Token type | Outrun |
| --- | --- |
| Input | **$0.32** |
| Output | **$5.67** |

Billed prices, rounded up to the cent. Prices as of October 30, 2026.

Billing unit

1M tokens

## What is Gemini 3.8 Flash TTS?

Gemini 3.8 Flash TTS is a audio model in the Outrun catalog. The standard rate is $0.32 in / $5.67 out per 1M tokens.

## What are the Gemini 3.8 Flash TTS model details?

| Model detail | Value |
| --- | --- |
| Kind | Audio |

## How do I call Gemini 3.8 Flash TTS?

Endpoint and parameters from the model setup reference. This is the request outline; supply your input as described in the [API reference](https://outrun.to/docs/api).

Request outline

```
POST /v1/audio/speech
model: gemini-3.8-flash-tts
voice: Kore
response_format: wav
```

## What request parameters does Gemini 3.8 Flash TTS take?

The setup reference lists the endpoint and options below. Follow the [API reference](https://outrun.to/docs/api) for the prompt, file or reference-image fields.

| Request field | Value |
| --- | --- |
| Endpoint | `POST /v1/audio/speech` |
| voice | `Kore` |
| response_format | `wav` |

## How does Gemini 3.8 Flash TTS compare with other audio models?

| Model | Rate |
| --- | --- |
| [Gemini 3 STT](https://outrun.to/model/gemini-3-stt) | $0.32 in / $1.89 out |
| [Gemini 3.8 Flash TTS](https://outrun.to/model/gemini-3.8-flash-tts) This model | $0.32 in / $5.67 out |

## Which similar models can I try?

[Google Gemini Gemini 3 STT $0.32 in / $1.89 out View model ↗](https://outrun.to/model/gemini-3-stt)[Google Gemini Gemini 3.1 TTS $0.04 per request View model ↗](https://outrun.to/model/gemini-3.1-tts)[xAI Grok Grok TTS $9.45 per 1M characters View model ↗](https://outrun.to/model/grok-tts)

## Common questions about Gemini 3.8 Flash TTS

### How much does the Gemini 3.8 Flash TTS API cost?

Gemini 3.8 Flash TTS costs $0.32 per 1M input tokens and $5.67 per 1M output tokens. Prices as of October 30, 2026.

### What model ID and base URL do I use for Gemini 3.8 Flash TTS?

Use the model ID `gemini-3.8-flash-tts` with the base URL `https://api.outrun.to/v1` and your Outrun API key.

### How is Gemini 3.8 Flash TTS billed?

Per 1M tokens, from your prepaid USD balance. There is no subscription.

### Does Outrun store my prompts when I use Gemini 3.8 Flash TTS?

Outrun does not store your prompts, images or outputs unless you choose to save them.

## Where can I find more models?

[Google Gemini guide ↗](https://outrun.to/gemini-api)[All model prices ↗](https://outrun.to/discounted-ai-api)[Model docs ↗](https://outrun.to/docs/models)[All model pages ↗](https://outrun.to/model/)

---
Source: https://outrun.to/model/gemini-3.8-flash-tts
Outrun: https://outrun.to/ | API base: https://api.outrun.to/v1 | Prices (JSON): https://api.outrun.to/pricing | Docs: https://outrun.to/docs/