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Yi
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Yi

A series of large language models trained from scratch by developers @01-ai

by 01-ai · GitHub
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large-language-modelsApache-2.0Jupyter Notebook
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In plain words

Explore and use a variety of large language models for different tasks and applications.

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7.84k7.82k
2026-07-042026-08-31
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📄 About

A series of large language models trained from scratch by developers @01-ai

Yi has 7.8k stars on GitHub. It has been forked 498 times. Yi is written mainly in Jupyter Notebook. It has been in active development since 2023. Yi is available under the Apache-2.0 license. Its main topics are large-language-models.

Frequently asked questions

What is Yi?

A series of large language models trained from scratch by developers @01-ai

Is Yi open source?

Yi is an open-source project. It is released under the Apache-2.0 license.

Is Yi free?

Yes. Yi is free and open source — you can use, modify and self-host it.

What license does Yi use?

Yi is available under the Apache-2.0 license.

What language is Yi written in?

Yi is written mainly in Jupyter Notebook.

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