It’s been intentional for a while and serves multiple purposes
Promotion: “the thing we’re working on is so powerful it’s actually dangerous”
Restrict who can compete: “the model is too dangerous to release, here’s how you make it but no you have to train it yourself for X millions cost in compute time”
Vendor lock-in: “the thing we’re working on is so dangerous we can’t let it off our servers, so you must use our servers and pay us to use it”
It’s all just a result of AI being paper driven and having to release your research but you need to find ways that releasing the research doesn’t let the competition catch up too fast.
The little act they keep doing and pushing to the press is becoming tiresome though.