Baidu Translate API
Leading Chinese translation API, 200+ languages, strong for Asian scripts
Freemium
✓ Verified
🇨🇳 China
Baidu Translate API is the dominant translation API for Chinese market applications, offering coverage of 200+ languages with exceptional quality for Chinese, Japanese, Korean, and other Asian scripts. The free tier of 5 million characters/month is extremely generous. The API is essential for businesses targeting Chinese consumers or requiring Simplified/Traditional Chinese, Cantonese, or minority language support. Baidu’s training data advantage in Chinese content makes it the highest-quality option for Chinese ↔ other language pairs. Requires a Baidu account and ICP filing for commercial use in China.
API Details
Auth Method
API Key
Pricing Model
Freemium
Free Tier
Yes — 5 million characters/month free (Standard)
Rate Limit
QPS-based (10 QPS free)
Format
REST / JSON
Versioning
v2
SLA / Uptime
99.5%
Compliance
Chinese data regulations; ICP license required
Geographic Restrictions
Global API access; best for Chinese market integration
Last Verified
2026-02-20
Categories
Frequently Asked Questions
Baidu Translate has superior quality for Chinese-related language pairs u2014 Chinese to English, Chinese to Japanese, Chinese to Korean u2014 because it is trained on vastly more Chinese-language data. For applications targeting Chinese users or content, Baidu often outperforms Google. It also supports minority Chinese languages like Cantonese and Classical Chinese.
Baidu Translate API has a free tier of 5 million characters per month for standard translation. The advanced model costs u00a549 per million characters. Specialised vertical models (medical, legal, tech) are available on enterprise plans. Pricing is in Chinese Yuan u2014 approximately u00a57 per million characters for the standard API.
Baidu Translate API is accessible globally, but it requires a Baidu developer account which involves Chinese phone number verification. API access from outside China may experience higher latency. For production use from non-Chinese servers, measure latency carefully and consider caching results. Some VPN/proxy configurations may block access.
Baidu Translate supports 200+ language pairs, with a strong focus on Chinese language variants. It uniquely supports Classical Chinese (u6587u8a00u6587), Cantonese (u7ca4u8bed), and Literary Chinese in addition to Simplified and Traditional Chinese. This makes it essential for applications dealing with historical Chinese texts or regional Chinese dialects.