# Baichuan
Baichuan Intelligence (百川智能) is a Chinese AI lab founded in April 2023 by [[Wang Xiaochuan]] (the founder of the Sogou search engine). It develops the **Baichuan** family of [[Large Language Models (LLMs)]] and is one of the four "AI Tigers" of China alongside [[Moonshot AI]], [[Deepseek]], and [[Zhipu AI (Z.ai)]].
## Model line
- **Baichuan-7B / Baichuan-13B** (2023) — early [[AI Open Weight Models|open-weight]] bilingual (Chinese/English) models that helped catalyze the Chinese open-weight wave
- **Baichuan2** series — follow-on open-weight releases
- **Baichuan3 / Baichuan4 / M-series** — closed-weight hosted offerings; Baichuan M1 / M2 are healthcare-specialized
- Focus has gradually shifted toward **medical / healthcare** AI as the lab's primary vertical, distinguishing it from its peers
## Positioning
- Academic-lineage, bilingual-from-day-one models with permissive early releases
- More vertical / enterprise-oriented than the other AI Tigers (explicit healthcare focus)
- Less visible in the coding-agent race than [[Kimi]] or [[Deepseek]], but substantial within China
- Backed by investors including Tencent and Alibaba
## Why it matters
- Completes the "AI Tigers" map: Moonshot (agentic coding), Deepseek (reasoning / coding), Z.ai / Zhipu (GLM open-weight), Baichuan (healthcare / vertical)
- [[Wang Xiaochuan]]'s Sogou lineage gives the lab unusually strong search and large-scale-systems engineering chops
- Healthcare-vertical focus may produce the most societally consequential Chinese AI deployment even though it's less visible to the Western coding-agent crowd
## References
- Official website: https://www.baichuan-ai.com
- Hugging Face: https://huggingface.co/baichuan-inc
- Wikipedia: https://en.wikipedia.org/wiki/Baichuan_Intelligence
## Related
- [[Wang Xiaochuan]]
- [[Large Language Models (LLMs)]]
- [[AI Open Weight Models]]
- [[AI Frontier Model]]
- [[Moonshot AI]]
- [[Deepseek]]
- [[Zhipu AI (Z.ai)]]
- [[Qwen]]