| stage,people,definition | |
| People in primary UK-connection evidence,19,"Current or model-period UK connections, including contributors and later arrivals." | |
| Attributable UK natural-language model builders,5,"Direct project-location statement or explicitly labelled, dated professional-location inference." | |
| UK builders with from-scratch models,3,At least one UK-built natural-language model trained from new initialisation. | |
| Strict independent UK from-scratch builders,1,"Never attended university, no institutional affiliation, and affirmative independent-project evidence." | |