CHARLO
OPEN SOURCE LICENSES

Open Source Licenses

Charlo is built on an engine and language models released by Google. Below are the software and fonts included in the App, the models the App downloads, and their licenses. Our thanks to everyone who made them.

01

Runtime

LiteRT-LMGoogle · On-device language model engine (0.17.1)
APACHE 2.0

LiteRT-LM is distributed together with the LiteRT runtime and several subcomponents, each under its own license. Full notices are available in the LiteRT-LM repository.

02

Language Models

Gemma 4 E2BGoogle · litert-community release, downloaded by the App
APACHE 2.0
Gemma 4 E4BGoogle · litert-community release, downloaded by the App
APACHE 2.0
Gemma 4 12BGoogle · litert-community release, downloaded by the App
APACHE 2.0

Model files are not bundled with the App. Only the model you choose is downloaded from the litert-community repository on Hugging Face. The models are copyrighted by Google, and the App uses them unmodified.

03

Fonts

MaruBuriNAVER · Chat text typeface
SIL OFL 1.1

All other text uses Apple's built-in system fonts.

04

License Texts

05

Notice

Copyright in the Charlo app and the character cards bundled with it belongs to toya. The software and models listed above are the works of their respective owners and are used under the terms of their licenses. Gemma is a trademark of Google LLC.

If you find a missing or incorrect license, please let us know at [email protected] and we will correct it promptly.