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POST
/
api
/
v1
/
client
/
job
/
CreateTask
qwen3 tts speech synthesis
curl --request POST \
  --url https://api.crun.ai/api/v1/client/job/CreateTask \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "model": "qwen3-tts/speech-synthesis",
  "callback_url": "https://your-domain.com/api/callback",
  "input": {
    "text": "Welcome to Qwen3 TTS. We can synthesize natural speech in multiple languages.",
    "voice": "Serena",
    "language_type": "English",
    "instructions": "Speak clearly with a friendly, confident tone.",
    "optimize_instructions": true
  }
}
'
{
  "code": 200,
  "message": "success",
  "data": {
    "task_id": "task_12345678"
  }
}

​
Overview

Qwen3-TTS is a text-to-speech model from the Qwen team at Alibaba Cloud. This model turns text into natural-sounding speech across 10 languages, including Chinese, English, Japanese, Korean, German, French, Russian, Portuguese, Spanish, and Italian.
Includes three powerful modes: Voice, Clone, and Design.

​
What you can do with it

​
Speech Synthesis:

Enter the text to be synthesized, select the built-in voice of the system, and the speech can be generated. Multi-language mixed input is supported.

​
Voice Cloning:

Give the model 3 seconds of audio and it can reproduce that voice speaking any text you provide. The cloning works across languages too—clone a voice in English and use it to speak Chinese.

​
Design Voice:

Describe the voice you want in plain language and the model creates it. You might ask for “a warm storyteller voice with gentle pacing” or “a deep male voice with a British accent.” The model interprets your description and generates matching speech.

​
Control speech style:

Use natural language instructions to adjust how the speech sounds. You can control emotion, speaking speed, and tone. The model adapts its output based on the meaning of your text, placing pauses naturally and emphasizing the right words.

​
Query Task Status

After submitting a task, use the unified query endpoint to check progress and retrieve results:

Get Task Info

Learn how to query task status and retrieve generation results
For production use, we recommend using the callback_url parameter to receive automatic notifications when generation completes, rather than polling the status endpoint.

Models Overview

Explore all available models

Common API

Check credits and account usage

Authorizations

​
x-api-key
string
header
required

All APIs require authentication via API Key.

Get API Key:

  1. Visit API Key Management Page to get your API Key

Usage: Add to request header:

x-api-key: YOUR_API_KEY

Note:

  • Keep your API Key secure and do not share it with others
  • If you suspect your API Key has been compromised, reset it immediately in the management page

Body

application/json
​
model
enum<string>
required

The model name to use for generation. Required field.

  • Must be qwen3-tts/speech-synthesis for this endpoint
Available options:
qwen3-tts/speech-synthesis
​
input
object
required

Input parameters for the Qwen3 TTS speech synthesis task

​
callback_url
string<uri>

Optional. Callback URL for receiving task completion notifications.

  • System will POST task status and results to this URL when generation completes
  • Callback payloads structure is consistent with the data object returned by the task status query
  • Your callback endpoint should accept POST requests with JSON payload containing results
  • It returns an HTTP 200 status code upon successful receipt
Example:

"https://your-domain.com/api/callback"

Response

Request successful

​
code
enum<integer>

Response status code

  • 200: Success - Request has been processed successfully
  • 401: Unauthorized - Authentication credentials are missing or invalid
  • 402: Insufficient Credits - Account does not have enough credits to perform the operation
  • 404: Not Found - The requested resource or endpoint does not exist
  • 422: Validation Error - The request parameters failed validation checks
  • 429: Rate Limited - Request limit has been exceeded for this resource
  • 455: Service Unavailable - System is currently undergoing maintenance
  • 500: Server Error - An unexpected error occurred while processing the request
  • 501: Generation Failed - Content generation task failed
  • 505: Feature Disabled - The requested feature is currently disabled
Available options:
200,
401,
402,
404,
422,
429,
455,
500,
501,
505
​
message
string

Response message, error description when failed

Example:

"success"

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data
object