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Well that's one of the reason for the chaos few months ago. The board considered that this fundraise for his own company was interfering with his CEO role.
His fundraising for his other companies is widely known and has been happening consistently for years.
Well wait a minute...I don't think it would be competing with them in the end and I can't see him overcharging OpenAI, of all companies, for the use of this product. I honestly feel like this appears a genuine effort to help the interests of OpenAI and can't really find any conflicts or cause for this particular endeavor to engender dishonesty from him.
Building an advanced chip fab was much harder than just getting the money.

So something isn't very clear about this story.

I have a feeling they might not actually need the latest fab tech.

What matters is FLOPS/dollar (production cost) and FLOPS/kilowatt (energy use of resulting chips).

If you can use an older tech fab to get production cost down enough, it might be worth living with bigger transistors that use a little more energy.

AI stuff is massively parallel, unlike most other tech stuff, so they don't actually need super low latency and high clock speeds.