Google
Gemini 3.1 Flash TTS
Google Gemini 3.1 Flash text-to-speech.
tts-gemini-3-1-flashPricing
~35%- Characters
- $0.121875 / 1,000 characters
Discount history
Model details
- Input
- text
- Output
- audio
- Availability
- Uncapped capacity
- Updated
- 11/8/2026, 3:58:06 AM UTC
Capacity is reserved when your request is accepted.
Capabilities
AudioVoicesResponse formatSpeed
Supported parameters
modelinputvoiceresponse_formatspeedvoices: Achernar, Achird, Algenib, Algieba, Alnilam, Aoede, Autonoe, Callirrhoe, Charon, Despina, Enceladus, Erinome, Fenrir, Gacrux, Iapetus, Kore, Laomedeia, Leda, Orus, Puck, Pulcherrima, Rasalgethi, Sadachbia, Sadaltager, Schedar, Sulafat, Umbriel, Vindemiatrix, Zephyr, Zubenelgenubi
response formats: mp3, opus, wav