>Open sourcing models is not a commercial risk because barely anyone can run them locally
there are dozens of us!
Open weights are indeed a commercial risk because there's no shortage of companies that'll make a business out of running MaaS (model as a service), close & resell a fine-tuned or distilled variant (DeepSeeking of Llama / Cursorification of Kimi, for example).
It also allows companies to get broad, global exposure while satisfying both wary end users and host government policies & restrictions.