Qwen3 ASR Flash - Speech-to-Text

High-performance audio-to-text conversion by Alibaba Cloud optimized for short audio files. Qwen3 ASR Flash features multilingual support covering 27 languages and Chinese dialects with advanced noise reduction and emotion recognition.

Note: Audio files must first be uploaded using the Asset API before transcription. The audioUrl parameter should contain the path returned from the Asset API upload.

Endpoint

POSThttps://api.1min.ai/api/features

Request Headers

Field	Value
API-KEY	<api-key>
Content-Type	application/json

Parameters

Parameter	Type	Required	Description
type	string	Yes	Feature type identifier. Must be SPEECH_TO_TEXT
model	string	Yes	AI model identifier. Must be qwen3-asr-flash
promptObject	object	Yes	Configuration object containing all transcription parameters

Prompt Object Parameters

Parameter	Type	Required	Description	Default
audioUrl	string	Yes	Path to audio file (uploaded via Asset API). Maximum file size: 10MB. Supported formats: aac, amr, avi, aiff, flac, flv, m4a, mkv, mp3, mpeg, ogg, opus, wav, webm, wma, wmv	-
language	string	No	Input language code (see Language Options below)	-
enable_itn	boolean	No	Enable Inverse Text Normalization (applicable to Chinese and English only)	false

Language Options

Specify the language of the audio to improve recognition accuracy. If the language is uncertain or includes multiple languages, leave this parameter unspecified for automatic detection.

Language Code	Language
zh	Chinese (Mandarin, Sichuanese, Minnan, Wu)
yue	Cantonese
en	English
ja	Japanese
de	German
ko	Korean
ru	Russian
fr	French
pt	Portuguese
ar	Arabic
it	Italian
es	Spanish
hi	Hindi
id	Indonesian
th	Thai
tr	Turkish
uk	Ukrainian
vi	Vietnamese
cs	Czech
da	Danish
fil	Filipino
fi	Finnish
is	Icelandic
ms	Malay
no	Norwegian
pl	Polish
sv	Swedish

Code Examples

cURL

curl -X POST "https://api.1min.ai/api/features" \
-H "API-KEY: <api-key>" \
-H "Content-Type: application/json" \
-d '{
  "type": "SPEECH_TO_TEXT",
  "model": "qwen3-asr-flash",
  "promptObject": {
    "audioUrl": "development/audios/2025_01_15_18_30_45_001_meeting.mp3",
    "language": "en",
    "enable_itn": true
  }
}'

JavaScript

fetch('https://api.1min.ai/api/features', {
method: 'POST',
headers: {
  'Content-Type': 'application/json',
  'API-KEY': 'YOUR_API_KEY'
},
body: JSON.stringify({
  type: 'SPEECH_TO_TEXT',
  model: 'qwen3-asr-flash',
  promptObject: {
    audioUrl: 'development/audios/2025_01_15_18_30_45_001_meeting.mp3',
    language: 'en',
    enable_itn: true
  }
})
})
.then(response => response.json())
.then(data => console.log(data));

Python

import requests

url = "https://api.1min.ai/api/features"
headers = {
"Content-Type": "application/json",
"API-KEY": "YOUR_API_KEY"
}

data = {
"type": "SPEECH_TO_TEXT",
"model": "qwen3-asr-flash",
"promptObject": {
"audioUrl": "development/audios/2025_01_15_18_30_45_001_meeting.mp3",
"language": "en",
"enable_itn": True
}
}

response = requests.post(url, headers=headers, json=data)
print(response.json())

Interactive Playground

API Playground

GETPOSTPUTDELETEhttps://api.1min.ai/api/features

AI Model *Qwen3 ASR Flash

Audio URL *

Path to the audio file (upload via Asset API first)

Input Language (Optional)

Specify if known for better accuracy, or leave blank for auto-detection

AutoChinese (Mandarin, Sichuanese, Minnan, Wu)CantoneseEnglishJapaneseGermanKoreanRussianFrenchPortugueseArabicItalianSpanishHindiIndonesianThaiTurkishUkrainianVietnameseCzechDanishFilipinoFinnishIcelandicMalayNorwegianPolishSwedish

Inverse Text Normalization

Convert spoken form to written form (Chinese and English only)

Disabled (Default)Enabled

Generated cURL Command:

curl -X POST "https://api.1min.ai/api/features" \
  -H "API-KEY: <your-api-key>" \
  -H "Content-Type: application/json" \
  -d '{
  "type": "SPEECH_TO_TEXT",
  "model": "qwen3-asr-flash",
  "promptObject": {
    "audioUrl": "development/audios/2025_01_15_18_30_45_001_meeting.mp3",
    "enable_itn": false
  }
}'

Response Format

{
"aiRecord": {
  "uuid": "acddedab-4525-44d7-a507-0cdcdf51c773",
  "userId": "f944dd01-da40-405c-b698-708269eb9664",
  "teamId": "7d530bad-357c-4f6e-b627-16f043c9a16b",
  "model": "qwen3-asr-flash",
  "type": "SPEECH_TO_TEXT",
  "metadata": null,
  "rating": null,
  "feedback": null,
  "conversationId": null,
  "status": "SUCCESS",
  "createdAt": "2026-01-12T09:39:12.997Z",
  "aiRecordDetail": {
    "promptObject": {
      "audioUrl": "development/audios/2026_01_12_16_27_19_160_812932.wav",
      "language": "en",
      "enable_itn": false
    },
    "resultObject": [
      "Welcome to Google's Read TTS Flash, offering natural and expressive multilingual speech synthesis."
    ],
    "responseObject": {}
  },
  "additionalData": null,
  "temporaryUrl": ""
}
}