GOOGLE GEMINI / AUDIO
Gemini 3.1 TTS API pricing
$0.04 per request
Gemini 3.1 TTS costs $0.04 per request. Call it with model ID gemini-3.1-tts at https://api.outrun.to/v1 using one prepaid Outrun key. Prices as of October 30, 2026.
gemini-3.1-ttsUSD / REQUEST
How much does Gemini 3.1 TTS cost per request?
Standard
| Usage | Outrun |
|---|---|
| Per request | $0.04 |
Billed prices, rounded up to the cent. Prices as of October 30, 2026.
- Billing unit
- request
What is Gemini 3.1 TTS?
Gemini 3.1 TTS is a audio model in the Outrun catalog. The catalog lists $0.04 per request.
What are the Gemini 3.1 TTS model details?
| Model detail | Value |
|---|---|
| Kind | Audio |
How do I call Gemini 3.1 TTS?
Endpoint and parameters from the model setup reference. This is the request outline; supply your input as described in the API reference.
POST /v1/audio/speech
model: gemini-3.1-tts
voice: Kore
response_format: wavWhat request parameters does Gemini 3.1 TTS take?
The setup reference lists the endpoint and options below. Follow the API reference for the prompt, file or reference-image fields.
| Request field | Value |
|---|---|
| Endpoint | POST /v1/audio/speech |
| voice | Kore |
| response_format | wav |
How does Gemini 3.1 TTS compare with other audio models?
| Model | Rate |
|---|---|
| Gemini 3.1 TTSThis model | $0.04 per request |
Common questions about Gemini 3.1 TTS
How much does the Gemini 3.1 TTS API cost?
Gemini 3.1 TTS costs $0.04 per request. Prices as of October 30, 2026.
What model ID and base URL do I use for Gemini 3.1 TTS?
Use the model ID gemini-3.1-tts with the base URL https://api.outrun.to/v1 and your Outrun API key.
How is Gemini 3.1 TTS billed?
Per request, from your prepaid USD balance. There is no subscription.
Does Outrun store my prompts when I use Gemini 3.1 TTS?
Outrun does not store your prompts, images or outputs unless you choose to save them.