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科大讯飞开放平台 API

科大讯飞开放平台 API

iFlytek Open Platform API provides China's leading speech and AI services — speech recognition (ASR), text-to-speech (TTS), Spark LLM, OCR, translation, voiceprint.

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Use it when

#1 industry accuracy in Chinese speech recognition

Watch for

English / other foreign language support weaker than dedicated foreign-language ASR

First check

Register at xfyun.cn to create app for APPID + APIKey + APISecret. Speech recognition via WebSocket: wss://iat-api.xfyun.cn/v2/iat

Auth
api_key
CORS
?
HTTPS
Yes
Signup
?
Latency
2019 ms
Protocol
REST, WebSocket
Pricing
freemium

Uptime · 30-day window

Probes: 30Uptime: 70%Avg latency: 2655ms
01

About this API

iFlytek is an AI company founded 1999 in Hefei, Anhui, China, focused on Chinese speech technology — China's first-tier AI (with Baidu, Alibaba, Tencent, Huawei). Differentiator is "best at Chinese" — years of technical accumulation in Chinese ASR, TTS, dialect recognition makes it nearly monopolize the professional Chinese market. Product coverage: speech recognition (ASR, call center transcription most common), text-to-speech (TTS, smart speakers + audiobooks), Spark LLM (Chinese LLM benchmarking GPT-4), OCR, translation, voiceprint, oral assessment (core tech for education products). Customers include car infotainment (Li Auto, NIO use it), smart speakers (some Tmall Genie tech), education products (multiple electronic dictionaries / learning machines in China), enterprise customer service. Chinese developers building Chinese voice apps default to iFlytek; overseas / non-Chinese scenarios use OpenAI Whisper / AssemblyAI.

02

What you can build

  • 1Chinese ASR (call center transcription, meeting notes)
  • 2Chinese TTS (smart speakers, audiobook production)
  • 3In-car voice interaction (iFlytek is mainstream auto supplier)
  • 4Education products (oral assessment, homework grading)
03

Strengths & limitations

Strengths

  • #1 industry accuracy in Chinese speech recognition
  • Broad dialect support (Cantonese, Sichuanese, Northeastern, etc.)
  • On-prem deployment options (compliance-sensitive scenarios)

Limitations

  • English / other foreign language support weaker than dedicated foreign-language ASR
  • High latency for overseas business (servers mainly in China)
  • Complex pricing structure (multi-dimensional by service type / call count / duration)
04

Official quickstart

Read the official quickstart at www.xfyun.cn.

05

Getting started

Register at xfyun.cn to create app for APPID + APIKey + APISecret. Speech recognition via WebSocket: wss://iat-api.xfyun.cn/v2/iat

06

FAQ

Is English ASR also accurate?+

English isn't iFlytek's main battlefield. Chinese scenarios definitely use iFlytek; English / multilingual scenarios prefer OpenAI Whisper / AssemblyAI.

Which dialects are supported?+

Cantonese, Sichuanese, Northeastern, Henan, Hokkien, Shanghainese, and other mainstream dialects with accurate recognition. Ethnic minority languages (Tibetan, Uyghur) supported but less accurate than Mandarin.

07

Technical details

CORS: ?HTTPS: YesSignup: ?Open source: No
Auth type
api_key
Pricing
freemium
Rate limit
免费每日 quota;商业按调用次数计费
Protocols
REST, WebSocket
SDKs
java, python, javascript, csharp, ios, android, mini-program
Response time
2019 ms
Last health check
6/26/2026, 6:23:39 AM
08

Tags