Google's AI Studio is one of my favorite AI tools.
I feel like every T1 AI company should have some sort of "playground mode" like this before fully deploying models, features, etc., especially if we're paying for them.
One of the worst aspects of the AI space is waiting for a new feature or model to be deployed, only to find that it's nearly unusable due to a bug.
Playground modes like this are the easiest way to address this problem and make new models & features instantly usable upon deployment.
It also lets people test before buying subscriptions, which is great IMO.