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CTranslate2
C++

CTranslate2

Fast inference engine for Transformer models

by OpenNMT · GitHub
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avxavx2cppMITC++
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In plain words

Run Transformer models efficiently on your computer with optimized performance and reduced memory usage.

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4.58k4.56k
2026-07-072026-08-31
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📄 About

Fast inference engine for Transformer models

CTranslate2 has 4.6k stars on GitHub. It has been forked 501 times. CTranslate2 is written mainly in C++. It has been in active development since 2019. CTranslate2 is available under the MIT license. Its main topics are avx, avx2, cpp, cuda.

❓ Frequently asked questions

What is CTranslate2?

Fast inference engine for Transformer models

Is CTranslate2 open source?

CTranslate2 is an open-source project. It is released under the MIT license.

Is CTranslate2 free?

Yes. CTranslate2 is free and open source — you can use, modify and self-host it.

What license does CTranslate2 use?

CTranslate2 is available under the MIT license.

What language is CTranslate2 written in?

CTranslate2 is written mainly in C++.

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