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01.AI

AI research lab behind Yi series of open-source language models

Foundation ModelsFounded 2023

Updated May 29, 2026

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Company profile

What is 01.AI?

01.AI is an AI research company founded by Dr. Kai-Fu Lee, focused on developing advanced large language models. It is known for its open-source Yi series of models, which aim to provide powerful and accessible AI capabilities to developers and enterprises globally. The company plays a significant role in the open-source AI ecosystem, particularly in the Chinese market and beyond.

Company research

Data as of May 29, 2026

No company research is published for this company yet. All research →

Latest company data

Updated 12h ago

Primary data point

GitHub stars

7.8K

Main repository stars

Other data points

Hugging Face

397.8K

Model downloads

Repository health

Maintenance data from the main open-source repository.

Releases (30d)
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About 01.AI

01.AI is an AI research company founded by Dr. Kai-Fu Lee, focused on developing advanced large language models. It is known for its open-source Yi series of models, which aim to provide powerful and accessible AI capabilities to developers and enterprises globally. The company plays a significant role in the open-source AI ecosystem, particularly in the Chinese market and beyond.

FounderKai-Fu Lee

Funding

Venture2023

Sinovation Ventures, Alibaba Cloud

Undisclosed

Investors

Alibaba CloudSinovation Ventures