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ColossalAI
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ColossalAI

Making large AI models cheaper, faster and more accessible

by hpcaitech · GitHub
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aibig-modeldata-parallelismApache-2.0Python
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In plain words

Train large AI models more efficiently and affordably with this accessible framework.

From the README

Install
pip install colossalai

Excerpts from the project README on GitHub. Copyright and licensing remain with the respective authors.

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41.45k41.40k
2026-06-272026-08-31
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📄 About

Making large AI models cheaper, faster and more accessible

ColossalAI has 41.4k stars on GitHub. It has been forked 4.5k times. ColossalAI is written mainly in Python. It has been in active development since 2021. ColossalAI is available under the Apache-2.0 license. Its main topics are ai, big-model, data-parallelism, deep-learning.

Frequently asked questions

What is ColossalAI?

Making large AI models cheaper, faster and more accessible

Is ColossalAI open source?

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

Is ColossalAI free?

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

What license does ColossalAI use?

ColossalAI is available under the Apache-2.0 license.

What language is ColossalAI written in?

ColossalAI is written mainly in Python.

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