# Yi

Open-weight bilingual (English and Chinese) large language model family from 01.AI.

- Company: 01.AI
- Category: Open Models
- Business model: Open (open weights/source)
- Availability: global
- Launched: 2023
- Tags: open-weights, llm, bilingual
- Website: https://www.01.ai
- Canonical URL: https://globalaiproductindex.com/products/yi/
- Record updated: 2026-07-24

## Sources

- [Official website](https://www.01.ai)

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Data from the [Global AI Product Index](https://globalaiproductindex.com/), licensed CC BY 4.0.