Koala

by BAIR

About the model:

From the documentation 'Koala is fine-tuned on freely available interaction data scraped from the web, but with a specific focus on data that includes interaction with highly capable closed-source models such as ChatGPT.'

Model type:

Text

Model performance class:

Full

Link to the model:

https://bair.berkeley.edu/blog/2023/04/03/koala/

Base models:

Llama-13B

End model:

Koala

End model license:

Mixed

About the organisation:

Berkeley Artificial Intelligence Research

Link to the organisation:

https://bair.berkeley.edu/

Model release date:

March 2023

Availability

Base Model Data

Based on LLaMA whose pretraining data has nowhere been disclosed or documented.

https://github.com/facebookresearch/llama/blob/main/MODEL_CARD.md#training-dataset

End User Model Data

Datasets described in blog post but not all made available

https://bair.berkeley.edu/blog/2023/04/03/koala/#datasets-and-training https://github.com/young-geng/koala_data_pipeline

Base Model Weights

Based on LLaMA weights, which are not openly available though a leaked versions is in wide circulation.

End User Model Weights

Model weights ostensibly made available as a diff against LLaMA, however the folder containing the weights is empty.

https://drive.google.com/drive/folders/10f7wrlAFoPIy-TECHsx9DKIvbQYunCfl

Training Code

Code scattered across projects and repositories

https://github.com/young-geng/EasyLM

Documentation

Code Documentation

Code scattered across various repositories and not systematically documented.

https://github.com/young-geng/EasyLM

Hardware Architecture

Architecture visually illustrated and described in some detail.

https://github.com/young-geng/EasyLM

Preprint

No preprint available

Paper

No peer-reviewed paper

Modelcard

No model card available

Datasheet

No datasheet found

Access

Licenses

Licensing is 'subject to the model License of LLaMA, Terms of Use of the data generated by OpenAI, and Privacy Practices of ShareGPT'

https://huggingface.co/young-geng/koala#license

Last updated 13 March 2026

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