Qwen-Audio 3.0 TTS Flash API

About Qwen-Audio 3.0 TTS Flash

Qwen-Audio 3.0 TTS Flash is tuned for low latency in assistants, live dialogue and customer service. It has the same 597 preset voices as 3.0 TTS Plus, 589 Chinese and 8 English, and also follows written direction.

Call it with the model name alibaba/qwen-audio-3.0-tts-flash/text-to-speech on POST /jobs/createTask, from $0.01425.

Introduction

Qwen-Audio 3.0 TTS Flash is Alibaba's option for assistants, live dialogue and customer-service speech with low first-packet latency as its positioning.

Send a prepared response and a matching Flash preset, then poll the submitted task until synthesis finishes. First-packet positioning does not establish a completion deadline for this asynchronous API, so measure the full interaction in your call flow.

Key features

• Reuse the 3.0 catalog's voice choices while selecting the matching Flash voice ID.
• Keep service prompts within the 10,000-character request limit.
• Choose MP3, WAV, raw PCM or Opus to match your audio pipeline.

Request parameters

Pricing

Prices are in USD. The API uses a separate USD balance. Website credits cannot be used or transferred to it, and API funds cannot be transferred to website credits. When a task is accepted, we reserve the maximum quoted amount from your API balance. On completion, we charge for actual usage, never more than the hold, and release the remainder. If the task fails, the hold is released.

Send the same request body to POST /jobs/quote to see the estimated and maximum USD charge before running. A quote does not run the task or charge your balance.

Use cases

• Booking assistants: Speak a reservation confirmation and its follow-up question with a friendly, efficient delivery.
• Order status hotlines: Turn a prepared shipping update into a clear recording for a customer-service call flow.
• Live dialogue responses: Audition short assistant turns and measure completion time within your own application.

Prompt guide & pro tips

• Use a direct service manner for transactional prompts. Example instruction: "Speak as a friendly, efficient booking assistant."
• Make an order update easy to follow through a clear delivery note. Example instruction: "Read the shipping update calmly and clearly."
• Audition a measured pace before increasing the speed setting. Example instruction: "Keep a brisk rhythm while making every detail clear."
• Test a single reply before generating an entire call flow. Example instruction: "Ask the follow-up question with a helpful, neutral tone."

API quick start

Call the Qwen-Audio 3.0 TTS Flash API in three steps

1. Create an API key. Sign in to PopNow and create a key in the API console. Keys start with sk-popnow-. API calls use your separate USD balance.
2. Send the request. POST /jobs/createTask with model alibaba/qwen-audio-3.0-tts-flash/text-to-speech and an input object that follows the parameter table. The response returns a task ID straight away.
3. Get the result. Poll GET /jobs/recordInfo with the task ID, or pass a callBackUrl and we post the result to it. Download the output links when the task succeeds.

# 1. Create the task. Keep the Idempotency-Key if you retry after a network error.
export IDEMPOTENCY_KEY="$(uuidgen)"
curl -X POST https://api.popnow.ai/api/v1/jobs/createTask \
  -H "Authorization: Bearer $POPNOW_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $IDEMPOTENCY_KEY" \
  -d '{
  "model": "alibaba/qwen-audio-3.0-tts-flash/text-to-speech",
  "input": {
    "text": "Welcome back. Your files finished rendering a minute ago and are ready to download.",
    "voice_id": "qwen-audio-3.0-tts-flash-loonglunawang",
    "language": "auto"
  }
}'

# 2. Copy data.taskId from the response, then poll until state is succeeded, failed, canceled or expired.
TASK_ID="TASK_ID_FROM_RESPONSE"
curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=$TASK_ID" \
  -H "Authorization: Bearer $POPNOW_API_KEY"

Replace the prompt and any links with your own. The API tab has the response, polling and callback reference.

Qwen-Audio 3.0 TTS Flash API questions

All Qwen-Audio models

Qwen-Audio 3.0 TTS Plus uses the same voices and is tuned for expressive character performance.

• Qwen-Audio 3.1 TTS Plus APIExpressive narration and brand voices you direct in plain wordsFrom $0.0285 per 1,000 characters
• Qwen-Audio 3.1 TTS Flash APIFast speech in many languages from 70 voicesFrom $0.00285 per 1,000 characters
• Qwen-Audio 3.0 TTS Flash APILow-latency speech for assistants and customer serviceFrom $0.01425 per 1,000 characters
• Qwen-Audio 3.0 TTS Plus APICharacter voices for social and companion apps, 597 presetsFrom $0.019 per 1,000 characters

Other audio APIs

• Gemini 3.8 Flash-Lite TTS APIFast, lightweight speech in 70 voicesFrom $0.00021 per second
• Grok TTS API71 voices across 20 languages with speech tagsFrom $0.018 per 1,000 characters
• Seed Speech 2.0 API41 voices with tone set in plain languageFrom $0.072 per 1,000 characters
• MiniMax Speech 2.8 Turbo APIFast speech in 400+ voices with emotion controlFrom $0.072 per 1,000 characters

More about Qwen-Audio 3.0 TTS Flash

Try it

Qwen-Audio 3.0 TTS Flash AI Voice Generator onlineCreate audio with Qwen-Audio 3.0 TTS Flash in PopNow

Docs

Qwen-Audio 3.0 TTS Flash model ID and input schema in the API docsPopNow API quickstart: send your first requestWebhooks: get Qwen-Audio 3.0 TTS Flash results without polling