Given that allegedly hardware information was involved I’d lean more toward this is for developing either custom silicon based on Apple’s designs or OpenAI wants to make consumer hardware. Aren’t they making something with Jony Ive too?
I assumed consumer hardware too though I can't imagine what OpenAI hardware would look like. Another take on the "smart speaker" that has hit the consumer market with a resounding "meh?"
A lot of people have tried to copy Apple’s finished product and they never get it right, because they don’t have the process behind it. How something looks is only a small part of it.