# Qwen 3 TTS 12Hz 1.7B

Text-to-speech in 10 languages with built-in speakers, voice design, and voice cloning.

Model id: `qwen3-tts-12hz-1.7b`
Regions: ATL
Hugging Face: [Qwen/Qwen3-TTS-12Hz-1.7B-Base](https://huggingface.co/Qwen/Qwen3-TTS-12Hz-1.7B-Base)

## Pricing

- Speech: $0.00028 / second

## Inputs

- text: max prompt 6,000 characters

## Output: speech

| Parameter | Type | Values | Default |
| --- | --- | --- | --- |
| `voice` | string | vivian, serena, uncle_fu, dylan, eric, ryan, aiden, ono_anna, sohee, design, clone |  |
| `instructions` | any |  |  |
| `language` | any |  |  |
| `input_references` | array | up to 2 items |  |
| `response_format` | string | mp3, opus, flac, wav, pcm | mp3 |
| `stream_format` | string | audio, sse | audio |
| `speed` | number | 0.25–4 | 1 |
| `seed` | integer |  |  |
| `temperature` | number | 0–2 |  |
| `top_p` | number | 0–1 |  |
| `top_k` | integer |  |  |

## Endpoints

- [`POST /v1/audio/speech`](/docs/reference/create-speech.md): Create Speech