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bertviz
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bertviz

BertViz: Visualize Attention in Transformer Models

by jessevig · GitHub
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bertgpt2machine-learningApache-2.0Python
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Visualize how attention works in language models using an interactive tool.

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8.12k8.11k
2026-07-042026-08-31
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📄 About

BertViz: Visualize Attention in Transformer Models

bertviz has 8.1k stars on GitHub. It has been forked 886 times. bertviz is written mainly in Python. It has been in active development since 2018. bertviz is available under the Apache-2.0 license. Its main topics are bert, gpt2, machine-learning, natural-language-processing.

Frequently asked questions

What is bertviz?

BertViz: Visualize Attention in Transformer Models

Is bertviz open source?

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

Is bertviz free?

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

What license does bertviz use?

bertviz is available under the Apache-2.0 license.

What language is bertviz written in?

bertviz is written mainly in Python.

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