Lack of risk to the business. If it was just me and my tinker toys, the open path makes a lot of sense.

I am in the business of provisioning custom AI robots for paying customers. I need to be able to provide certain assurances and offer operational simplicity or the whole thing falls apart. These systems need to survive in their environments. Accounting and compliance teams feel a lot more comfortable with the landscape around the frontier model companies.

If I went to my favorite client on Monday and tried to sell them what HN seems to think is the most ideologically pure AI solution, I would probably be fired as a vendor.