Suppose you're the senior engineer on a project. You design the UI of the software. Then design how you want the software to work internally. Then write the core data structures. And then guide a bunch of junior engineers to write the code, review their work.

Is that the same as buying a computer program from anthropic?

I have a friend who's an architect. Sometimes we're in the city and he says "Oh see that building? Its one of mine." He didn't lay the concrete, or do the wiring or anything. Should he not be proud, because a construction company built each floor? Does it not count? Does his contribution not matter?

Open weight models exist and are good enough to make the projects above.