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  1. Models
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Gemini 3.8 Flash TTS

Try Model

Accepts compatible input turns: one turn for narration or exactly two distinct voices for multi-turn dialogue (up to 100 turns and 8,192 normalized input bytes). Expressive narration and two-speaker dialogue with 30 voices, delivery instructions, and inline vocal events. Returns WAV audio. Billed by exact spoken characters with no per-request minimum; instructions are not billed. The complete input is limited to 8,192 tokens.

Added Sep 25, 2026

Details

Approx. Price
$50.00 per 1M characters
Model type
text-to-speech
Category
text-to-speech
Preview examples
0

Available voices

Built-in voices accepted by NanoGPT for this model. Custom or cloned voice IDs may also be supported.

Zephyr
Puck
Charon
Kore
Fenrir
Leda
Orus
Aoede
Callirrhoe
Autonoe
Enceladus
Iapetus
Umbriel
Algieba
Despina
Erinome
Algenib
Rasalgethi
Laomedeia
Achernar
Alnilam
Schedar
Gacrux
Pulcherrima
Achird
Zubenelgenubi
Vindemiatrix
Sadachbia
Sadaltager
Sulafat

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Google Lyria 3 Pro generates premium music clips from a text prompt, with optional image guidance.

Gemini 3.1 Flash TTS Preview

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Google Gemini 3.1 Flash text-to-speech with inline audio tag and multi-speaker prompt support.

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Google Gemini native TTS. Single and multi-speaker support via prompt.

Qwen Audio 3.1 TTS Flash

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Speech synthesis with four multilingual voices in Singapore. Supports Japanese, Korean, French, German, Portuguese, Italian, Vietnamese, and Indonesian, plus eight Chinese dialects. Returns MP3, WAV, or PCM audio after generation completes. Billed by measured input and output tokens; character-based previews are estimates.

Qwen Audio 3.0 TTS Flash

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Fast multilingual text-to-speech with a broad set of voices and explicit language control.