Yi Large is the flagship model in 01.AI's Yi series, designed for advanced multilingual tasks with particular strength in Chinese and English. 01.AI, founded by Kai-Fu Lee, built the Yi family to be competitive at the frontier for multilingual understanding, long-context reasoning, and instruction-following tasks, with Yi Large representing the highest capability tier in the lineup.
It performs well across knowledge-intensive tasks, coding, and extended conversation, and its bilingual training corpus gives it notably balanced capability across Chinese and English compared to models primarily trained on English data. Yi Large is available via API, making it accessible for developers building products that require strong CJK language support alongside solid English performance.
Key Features
Advanced bilingual Chinese and English language understanding
Knowledge-intensive question answering across diverse domains
Strong multi-turn conversation and instruction-following
Competitive coding and analytical reasoning performance
Long-context handling for extended documents and dialogues
API access for production integration without self-hosting
Ideal Use Cases
Multilingual applications targeting both Chinese and English-speaking users
Customer support or content generation for CJK-language markets
Cross-lingual document translation and summarization
Research or enterprise use cases requiring frontier bilingual capability
Code generation and technical assistance with broad language coverage
Example Prompts for Yi Large
Technical Specifications
| Provider | Yi |
| Category | Text |
| Modality | Text -> Text |
Frequently Asked Questions
Try Yi Large now
Start using Yi Large instantly — 100 free credits, no credit card required. Access 750+ AI models through one platform.