# Seed Audio 1.0

ByteDance’s voice model.

Model id: `seed-speech-tts`
Type: Voice
Made by: ByteDance
Inputs: Text
Updated: Oct 12, 2026

## Pricing

| Setting | MiniAPI | fal | Difference |
| --- | ---: | ---: | ---: |
| any | $0.033 / 1K chars | $0.03 | +10% |

You are not charged for a job that fails.

## Parameters

| Name | Required | Values | Default | Description |
| --- | --- | --- | --- | --- |
| `text` | Yes | text |  | The words to speak. |
| `voice` | No | vivi_mixed_en_zh_ja_es_id, mindy_en_es_id_pt_zh, stokie_en, dacey_en, tim_en, kian_en_zh, cedric_en_zh, sophie_en_zh, jean_en_zh, magnus_en_zh, mabel_en_zh, nadia_en_zh, opal_en_zh, pearl_en_zh, quentin_en_zh, vienna_mixed_en_zh, alina_mixed_en_zh, corinne_mixed_en_zh, esther_mixed_en_zh, freya_mixed_en_zh, gigi_mixed_en_zh, holly_mixed_en_zh, lyla_mixed_en_zh, daisy_mixed_en_zh, tracy_es_zh, jess_ja_es_id_pt_en_zh, pinky_es_ko_mixed_en_zh, sweety_ja_es, sandy_es_mixed_en_zh, sven_de, minimi_ja, usseau_fr, felipe_es, han_id, martins_pt, enzo_it, shane_ko, bonnie_zh, felix_zh, celeste_zh, monkey_king_zh | stokie_en | Which voice speaks. |
| `output_format` | No | mp3, opus | mp3 | File type of the result. |
| `sample_rate` | No | 8000, 16000, 22050, 24000, 32000, 44100, 48000 | 24000 | Sample rate of the output audio in Hz. |
| `speed` | No | 0.5 to 2 | 1 | Speech speed. 1.0 is normal speed, 0.5 is half speed, 2.0 is double speed. |
| `volume` | No | 0.5 to 2 | 1 | Volume. 1.0 is normal volume, 0.5 is half, 2.0 is double. |
| `pitch` | No | -12 to 12 | 0 | Voice pitch shift in semitones. 0 is normal pitch, -12 lowers by one octave, 12 raises by one octave. |
| `language` | No | zh, en, ja, es-mx, id, pt-br, ko, it, de, fr |  | Force the text to be read as a single language, disabling automatic language detection. Leave unset for automatic detection (including seamless Chinese/English mixing on bilingual voices). Codes: zh (Chinese), en (English), ja (Japanese), es-mx (Mexican Spanish), id (Indonesian), pt-br (Brazilian Portuguese), ko (Korean), it (Italian), de (German), fr (French). |
| `voice_instruction` | No | text |  | Optional natural-language instruction that steers the delivery (tone, emotion, pace, volume), e.g. 'Speak in a cheerful tone' or 'Could you speak a bit slower?'. It is not spoken aloud and does not affect billing. |

## Quickstart

```bash
curl -X POST "https://api.minicut.ai/v1/queue/seed-speech-tts" \
  -H "Authorization: Key $MINIAPI_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"Hello from MiniAPI."}'
```

```json
{
  "request_id": "0192f3a4-5b6c-7d8e-9f01-23456789abcd",
  "status": "IN_QUEUE",
  "queue_position": 0,
  "status_url": "https://api.minicut.ai/v1/queue/seed-speech-tts/requests/0192f3a4-5b6c-7d8e-9f01-23456789abcd/status",
  "response_url": "https://api.minicut.ai/v1/queue/seed-speech-tts/requests/0192f3a4-5b6c-7d8e-9f01-23456789abcd",
  "cancel_url": "https://api.minicut.ai/v1/queue/seed-speech-tts/requests/0192f3a4-5b6c-7d8e-9f01-23456789abcd/cancel",
  "price": "0.000627",
  "currency": "USD"
}
```

Page: https://api.minicut.ai/models/seed-speech-tts
API reference: https://api.minicut.ai/docs/api