Google has introduced a new series of open-source models called "Gemma." This series is lightweight, freely available, and suitable for commercial use. The models perform exceptionally well, surpassing larger models in key benchmark tests. Gemma can run on developers' laptops and comes with security guidelines and tools. Google hopes that the open-source nature of Gemma will attract more developers to use its models. Technical reports show that Gemma performs strongly in language understanding, reasoning, and security.