To use these AIs, you should set the environment variable GOOGLE_API_KEY with your API key (in ownAI, select "Connect to external AI providers" in the user menu in the upper right corner, or set the variables globally in your server's .env file).
Then download the aifile and load it with ownAI (in ownAI, click on the logo in the upper left corner to open the menu, then select "AI Workshop", then "New AI" and "Load Aifile").
These AIs are run by an external service provider. Your requests will be sent to an external server. Please refer to the provider's privacy policy for details.