"endpoints are available in early access" is in reality "we have a waitlist (of unspecified length) for early access to endpoints"
When I try to access: “Access to our API is currently invitation-only, but we'll let you know when you can subscribe to get access to our best models.”
Considering that their email verification has been in different states of brokenness for the last hour, I’m guessing they were not as ready as they thought for the publicity ;)
When I try to access: “Access to our API is currently invitation-only, but we'll let you know when you can subscribe to get access to our best models.”