About Seed Audio 1.0
ByteDance Seed Audio 1.0 is a text-to-speech and audio generation model. It synthesizes natural speech from a text prompt with control over voice, output format, sample rate, speed, volume, and pitch. It supports voice cloning from up to three reference audio clips, or from a single reference image.
Ready to build with Seed Audio 1.0?
Try Seed Audio 1.0 in the Workbench to prompt it, compare outputs, and iterate on prompts without writing any code. When you're ready to ship, call the same model from our API and build your own apps on top of it.
curl -sSf -X POST https://hub.oxen.ai/api/ai/chat/completions \
-H "Content-Type: application/json" \
-H "Authorization: Bearer $OXEN_API_KEY" \
-d '{
"model": "bytedance-seed-audio-1-0",
"messages": [
{
"role": "user",
"content": "Try sending a message."
}
]
}'Request parameters
Every field Seed Audio 1.0 accepts in the request body. See the API reference for response formats.
POST
https://hub.oxen.ai/api/ai/chat/completions| Field | Type | Required | Default | Description |
|---|---|---|---|---|
prompt | string | Yes | — | Prompt or text to synthesize. Reference audio inputs by order with @Audio1, @Audio2, @Audio3. |
audio_urls | array<string>nullable | No | — | Up to 3 reference audio URLs for voice cloning (max 30s and 10MB each). Reference them in the prompt as @Audio1, @Audio2, @Audio3. Supported formats: wav, mp3, pcm, ogg_opus. |
image_url | stringuri · nullable | No | — | Optional single reference image URL (jpeg, png, or webp, max 10MB). Incompatible with audio references. |
output_format | string | No | "mp3" | Output audio file format.wavmp3pcmogg_opus |
sample_rate | integer | No | 24000 | Output sample rate in Hz.80001600024000320004410048000 |
speed | number | No | 1 | Speech tempo multiplier (typical range 0.5-2.0). Range: 0.5 – 2 |
volume | number | No | 1 | Audio amplitude multiplier (typical range 0.5-2.0). Range: 0.5 – 2 |
pitch | integer | No | 0 | Pitch shift in semitones (range -12 to 12; 0 leaves the pitch unchanged). Range: -12 – 12 |