Right from Glass’s highlights website:

We’re wrapping up the final touches on our AI-powered Search beta that we’ll be releasing soon to Early Access. Early Access is an included perk for a new level of Glass membership that we’re announcing soon. Once we’ve tested it thoroughly over the coming months, it’ll be released to everyone. Source: New Member Search in Beta — Glass

In other words, Glass will add another subscription level where you’ll get pre-release features for testing. Subscriptions are not enough. Now we must pay to be beta testers. Great. 🤦🏻‍♂️