The labs are the parties mounting the expeditions — the organizations that train and ship the frontier models the Register tracks. Each maker gets one Survey Record: where it is based, when it was founded, the models it has in the field, and an honest read of how it competes.
Between them, these 8 parties account for every model in the survey. Some publish open weights you can download and run; others keep their frontier work closed. Follow any record through to the models it has filed — and back again.